Measurements of Branching Fractions and Decay Amplitudes in B- Jpsi K^ decays
a r X i v :h e p -e x /0205021v 2 15 M a y 2002BELLE
KEK preprint 2002-17
Belle preprint 2002-11
Measurements of Branching Fractions and Decay Amplitudes in B →J/ψK ?decays K.Abe 9,K.Abe 43,T.Abe 44,I.Adachi 9,Byoung Sup Ahn 16,H.Aihara 45,M.Akatsu 23,Y.Asano 50,T.Aso 49,V.Aulchenko 2,T.Aushev 13,A.M.Bakich 40,Y.Ban 34,E.Banas 28,A.Bay 19,P.K.Behera 51,A.Bondar 2,A.Bozek 28,T.E.Browder 8,B.C.K.Casey 8,Y.Chao 27,B.G.Cheon 39,R.Chistov 13,S.-K.Choi 7,Y.Choi 39,M.Danilov 13,L.Y.Dong 11,S.Eidelman 2,V.Eiges 13,Y.Enari 23,F.Fang 8,C.Fukunaga 47,T.Gershon 9,K.Gotow 52,R.Guo 25,J.Haba 9,K.Hanagaki 35,T.Hara 32,H.Hayashii 24,M.Hazumi 9,E.M.Heenan 22,I.Higuchi 44,T.Higuchi 45,T.Hokuue 23,Y.Hoshi 43,S.R.Hou 27,W.-S.Hou 27,H.-C.Huang 27,T.Igaki 23,T.Iijima 23,K.Inami 23,A.Ishikawa 23,H.Ishino 46,R.Itoh 9,M.Iwamoto 3,H.Iwasaki 9,Y.Iwasaki 9,P.Jalocha 28,J.H.Kang 54,J.S.Kang 16,P.Kapusta 28,S.U.Kataoka 24,N.Katayama 9,H.Kawai 3,Y.Kawakami 23,N.Kawamura 1,T.Kawasaki 30,H.Kichimi 9,D.W.Kim 39,Heejong Kim 54,H.J.Kim 54,H.O.Kim 39,Hyunwoo Kim 16,K.Kinoshita 5,S.Korpar 21,14,P.Kriˇz an 20,14,P.Krokovny 2,R.Kulasiri 5,S.Kumar 33,Y.-J.Kwon 54,https://www.wendangku.net/doc/ea7399863.html,nge 6,36,G.Leder 12,S.H.Lee 38,D.Liventsev 13,J.MacNaughton 12,G.Majumder 41,T.Matsuishi 23,S.Matsumoto 4,T.Matsumoto 23,47,W.Mitaro?12,K.Miyabayashi 24,Y.Miyabayashi 23,H.Miyake 32,H.Miyata 30,
G.R.Moloney 22,S.Mori 50,T.Mori 4,T.Nagamine 44,Y.Nagasaka 10,
T.Nakadaira 45,E.Nakano 31,M.Nakao 9,J.W.Nam 39,Z.Natkaniec 28,
S.Nishida 17,O.Nitoh 48,T.Nozaki 9,S.Ogawa 42,F.Ohno 46,T.Ohshima 23,
T.Okabe 23,S.Okuno 15,S.L.Olsen 8,W.Ostrowicz 28,H.Ozaki 9,
P.Pakhlov 13,H.Palka 28,C.W.Park 16,H.Park 18,K.S.Park 39,
L.E.Piilonen 52,M.Rozanska 28,K.Rybicki 28,H.Sagawa 9,S.Saitoh 9,
Y.Sakai 9,M.Satapathy 51,A.Satpathy 9,5,O.Schneider 19,S.Schrenk 5,
S.Semenov 13,K.Senyo 23,R.Seuster 8,M.E.Sevior 22,H.Shibuya 42,
B.Shwartz 2,V.Sidorov 2,J.B.Singh 33,S.Staniˇc 50,?,A.Sugi 23,
A.Sugiyama 23,K.Sumisawa 9,T.Sumiyoshi 9,47,K.Suzuki 9,S.Suzuki 53,
S.Y.Suzuki 9,T.Takahashi 31,F.Takasaki 9,N.Tamura 30,M.Tanaka 9,
G.N.Taylor 22,Y.Teramoto 31,S.Tokuda 23,M.Tomoto 9,T.Tomura 45,
S.N.Tovey 22,K.Trabelsi 8,T.Tsuboyama 9,T.Tsukamoto 9,S.Uehara 9,
S.Uno9,S.E.Vahsen35,G.Varner8,K.E.Varvell40,C.H.Wang26, J.G.Wang52,M.-Z.Wang27,Y.Watanabe46,E.Won38,B.D.Yabsley52, Y.Yamada9,A.Yamaguchi44,Y.Yamashita29,M.Yamauchi9,
M.Yokoyama45,K.Yoshida23,Y.Yuan11,Y.Yusa44,J.Zhang50, Z.P.Zhang37,V.Zhilich2,Z.M.Zhu34,and D.ˇZontar50
(The Belle Collaboration)
1Aomori University,Aomori
2Budker Institute of Nuclear Physics,Novosibirsk
3Chiba University,Chiba
4Chuo University,Tokyo
5University of Cincinnati,Cincinnati OH
6University of Frankfurt,Frankfurt
7Gyeongsang National University,Chinju
8University of Hawaii,Honolulu HI
9High Energy Accelerator Research Organization(KEK),Tsukuba
10Hiroshima Institute of Technology,Hiroshima
11Institute of High Energy Physics,Chinese Academy of Sciences,Beijing
12Institute of High Energy Physics,Vienna
13Institute for Theoretical and Experimental Physics,Moscow
14J.Stefan Institute,Ljubljana
15Kanagawa University,Yokohama
16Korea University,Seoul
17Kyoto University,Kyoto
18Kyungpook National University,Taegu
19Institut de Physique des Hautes′Energies,Universit′e de Lausanne,Lausanne
20University of Ljubljana,Ljubljana
21University of Maribor,Maribor
22University of Melbourne,Victoria
23Nagoya University,Nagoya
24Nara Women’s University,Nara
25National Kaohsiung Normal University,Kaohsiung
26National Lien-Ho Institute of Technology,Miao Li
27National Taiwan University,Taipei
28H.Niewodniczanski Institute of Nuclear Physics,Krakow
29Nihon Dental College,Niigata
30Niigata University,Niigata
31Osaka City University,Osaka
32Osaka University,Osaka
33Panjab University,Chandigarh
34Peking University,Beijing
35Princeton University,Princeton NJ
36RIKEN BNL Research Center,Brookhaven NY
37University of Science and Technology of China,Hefei
38Seoul National University,Seoul
39Sungkyunkwan University,Suwon
40University of Sydney,Sydney NSW
41Tata Institute of Fundamental Research,Bombay
42Toho University,Funabashi
43Tohoku Gakuin University,Tagajo
44Tohoku University,Sendai
45University of Tokyo,Tokyo
46Tokyo Institute of Technology,Tokyo
47Tokyo Metropolitan University,Tokyo
48Tokyo University of Agriculture and Technology,Tokyo
49Toyama National College of Maritime Technology,Toyama
50University of Tsukuba,Tsukuba
51Utkal University,Bhubaneswer
52Virginia Polytechnic Institute and State University,Blacksburg VA
53Yokkaichi University,Yokkaichi
54Yonsei University,Seoul
?on leave from Nova Gorica Polytechnic,Slovenia
1Introduction
The decay B0→J/ψK?0(K?0→K Sπ0)has the same quark level diagram as B0→J/ψK S and may,therefore,be used for a determination of the CP vio-lation parameter sin2φ1.However,since the J/ψK?system has three possible helicity states with di?erent superpositions of CP eigenstates,the dilution of the CP asymmetry depends on the degree of polarization of the decay.The mix of CP even and odd states must be known before a measurement of sin2φ1 can be attempted.
The CP mix can be determined through a full angular analysis of the?nal state particles to obtain the decay amplitudes of the system in the transversity basis.Once the CP mix is measured,the CP eigenstates of the events may be projected out in a statistical way.The full angular analysis also serves as a test of the factorization hypothesis by measuring the imaginary part of the decay amplitudes.
In this paper,we report the measurements of branching fractions for B0→J/ψK?0and B+→J/ψK?+and the decay amplitudes of the system ob-tained by a full three-dimensional angular analysis.The determination of sin2φ1based on the reconstruction of these decays is described elsewhere[1].
2Data sample
The data sample used in this analysis corresponds to an integrated luminosity of29.4fb?1recorded with the Belle detector[2]at the KEKB electron-positron collider[3].Events are required to satisfy the hadronic event selection criteria[1] and have R2<0.5,where R2is the ratio of the second to zeroth Fox-Wolfram parameters[4].
The branching fractions and decay amplitudes are measured by reconstructing neutral and charged B mesons in B0→J/ψK?0and B+→J/ψK?+(inclusion of charge conjugate modes is implied throughout this paper).The reconstruc-tion of the J/ψis performed using the dilepton decays,J/ψ→e+e?and μ+μ?.For the e+e?mode,electrons and positrons are identi?ed by matching between the energy measured in the electromagnetic calorimeter(ECL)and the momentum measured in the central drift chamber(CDC),the shape of the cluster energy deposit in the ECL,the dE/dx measured in the CDC,and the light yield in the aerogelˇCerenkov counters(ACC).A likelihood is calcu-lated from these measurements and required to be consistent with the electron hypothesis.To correct for energy lost by?nal state radiation,the energy of any cluster in the ECL within0.05radians of the track momentum is added
to that of the track.The invariant mass of each pair of identi?ed electrons is calculated,and the pair is identi?ed as J/ψ→e+e?if the mass is in the range
2.95GeV/c2 3.15GeV/c2.Tracks are identi?ed as muons by means of a likelihood number based on(i)a comparison of the number of layers with associated hits in the muon detector(KLM)with the number expected based on momentum and(ii)the energy of the associated hit in the ECL.An oppositely charged pair of identi?ed muons is identi?ed as J/ψ→μ+μ?if the invariant mass is in the range3.05GeV/c2 pectations.The kaon likelihood is obtained by combining measurements of the time of?ight measured by the scintillation counters(TOF),dE/dx by the CDC and the hit information in the ACC.Tracks which are not identi-?ed as kaons and not used as leptons in the J/ψreconstruction are treated as charged pion candidates.K S candidates are reconstructed from pairs of oppositely charged tracks which satisfy three conditions:1)the distance of the closest approach of both tracks to the nominal interaction point is larger than0.03cm,2)the angle between the K S momentum vector and the vec-tor displacement of the K S vertex point from the J/ψvertex is less than 0.15radians,and3)the reconstructed decay vertex of the K S is at least0.1 cm away from the interaction point.Each pair with invariant mass satisfying 0.47GeV/c2 3Measurement of branching fractions Candidate B0and B+mesons are reconstructed by selecting events with a J/ψand a K?and examining two quantities in the center-of-mass of theΥ(4S), the beam-constrained mass(M bc)and the energy di?erence between the B candidate and the beam energy(?E).The beam-constrained mass,which is the invariant mass of a reconstructed J/ψand K?calculated taking the energy to be the beam energy,is required to be in the range5.20?5.29GeV/c2.For modes with charged tracks only,|?E|is required to be less than30MeV.For decay modes that include aπ0,?E is required to satisfy?50MeV For each reconstructed mode,the distribution in M bc is binned and?tted to a parameterized function of the form f i cf(M bc)+f nr(M bc)+f combi(M bc),(1) N(M bc)=f sig(M bc)+ i where f sig,f i cf,f nr,and f combi are the shapes for the signal,background from other B→J/ψK?modes(which we will refer to as cross-feed),background from non-resonant B→J/ψKπ,and combinatorial background,respectively. f si g is a Gaussian wit h the peak position?xed at the B mass and a width that is determined from Monte Carlo.Only the amplitude is varied in?t-ting.f i cf is described by a separate Gaussian for each of the three J/ψK?decay modes other than the signal mode.Monte Carlo simulations are used to determine the mean and width for each mode,as well as the e?ciency for it to pass the signal mode criteria.The amplitudes of f i cf are scaled such that the ratios of cross-feed to signal e?ciency are?xed assuming equal pro-duction rates and decay branching fractions for the neutral and charged B’s. The rate of cross-feed from B→J/ψK modes is also estimated using Monte Carlo and found to be negligible.The total amount of the cross-feed is esti-mated to be1.8–6.2%(depending on the mode)of the events in the signal region.The shape of f nr is also assumed to be a Gaussian.While the mean and width are expected to be similar to those of f sig,they are determined separately to allow for minor kinematic di?erences,using events in the K?mass sideband(1.1GeV/c2 account the contamination of the combinatorial background in the functions. The estimated contribution of the non-resonant decay in the signal region is 5.2%.f combi is the line shape for the combinatorial background and is modeled by the“ARGUS function”[6],where the parameters are free in the?t.Fig.2 shows the results of the?ts to four modes.The?ts indicate the contamination of the combinatorial background is less than1%in the signal region. The branching fraction is calculated from the yield in the signal region ob-tained from the?tted f sig.The detection e?ciency for each mode is esti-mated by applying the selection criteria to Monte Carlo event samples.Events are generated unpolarized in the J/ψK?system using the QQ event gen-erator[7]and are passed through a detector simulation program based on GEANT3[8].The estimated e?ciencies are28.4%,20.7%,11.8%,and8.1%, for J/ψK?0(K+π?),J/ψK?+(K Sπ+),J/ψK?+(K+π0)and J/ψK?0(K Sπ0), respectively.The branching fractions of secondary decays are?xed to the PDG values[5]and the numbers of neutral and charged B B events(1.0%),7)polarization(1.7%),and8)branch-ing fraction for secondary decays(1.7%).The estimate of the non-resonant B→J/ψKπbackground has a relatively large uncertainty because the?t to the Kπmass distribution is poor in the region of Kπmass from1.1GeV/c to1.3GeV/c,where some excess is observed.This excess has also been seen elsewhere[9,10],and there has been some speculation as to its origin[9].As its source is not established,we estimate the uncertainty in its contribution to the signal by including in the?t to the Kπmass distribution an additional term that is constrained to zero at the mass threshold and extends linearly to 1.35GeV/c2.The change to the signal yield due to this modi?cation is taken to be the uncertainty. The resulting branching fractions are summarized in Table1with the esti-mated systematic errors. 4Measurement of decay amplitudes The decay amplitudes of B→J/ψK?decays are measured in the transversity basis[11].The direction of motion of the J/ψin the rest frame of the B can-didate is de?ned to be the x-axis.The y-axis is de?ned to be in the direction of the projection of the K momentum into the plane perpendicular to the x-axis in the B rest frame.The x-y plane contains the momenta of the J/ψ, the K,and theπ.The z-axis is de?ned to be perpendicular to the x-y plane according to the right-hand rule.The angle between the l+direction and the z-axis in the J/ψrest frame is de?ned asθtr.The angle between the x-axis and the projection of the l+momentum onto the x-y plane is de?ned asφtr in the same frame.The angleθK?is de?ned as described in the previous section. The distribution of these three angles for B→J/ψK?decays is described in terms of three amplitudes[12]: 1 d cosθtr d cosθK?dφtr = 9 √ √ B0and B?). |A0|2denotes the longitudinal polarization of J/ψwhile|A⊥|2(|A |2)is the transverse polarization component along the z-axis(y-axis).Also,|A0|2+|A |2 is the amplitude corresponding to the CP-even state,while|A⊥|2is the CP-odd component in B0→J/ψK?0(K?0→K Sπ0).These amplitudes are normalized so that: |A0|2+|A |2+|A⊥|2=1.(3) The amplitudes are determined by?tting this function to the measured three-dimensional distribution inθtr,φtr andθK?,taking into account the detection e?ciency and background.The resolution of the angular measurements is estimated by Monte Carlo and found to be typically less than0.02radians. The value ofηis determined from the charge of pions or kaons used in the K?reconstruction.We do not include the B0→J/ψK?0(K Sπ0)mode in the?t since in this caseηis not well-de?ned. The?t is performed using an unbinned maximum likelihood method.The probability density function(PDF)is de?ned using the theoretical distribution in(2)and can be expressed as P DF(x,y,z,M bc)=N×[f sig(M bc)×?(x,y,z)×1 dxdydz (x,y,z) + i f i cf(M bc)×ADF cf(x,y,z) +f nr(M bc)×ADF nr(x,y,z) +f combi(M bc)×ADF combi(x,y,z)],(4) where x=cosθtr,y=φtr,and z=cosθK?,N is the normalization factor of the PDF,?(x,y,z)is the detection e?ciency as a function of the three angles, and ADF cf,ADF nr,ADF combi are the angular shapes for the cross-feed,non-resonant and combinatorial backgrounds,respectively. Here,f sig(M bc),f i cf(M bc),f nr(M bc),and f combi(M bc)are the fractions of signal events,cross-feed contamination,non-resonant contamination and combina-torial background as a function of beam constrained mass,respectively.These fractions are obtained from the measurements of the branching fractions de-scribed in the previous section. The detection e?ciency function?(x,y,z)is obtained from a large Monte Carlo sample of1million events for each mode generated without any polarization of the B→J/ψK?system.Events are histogrammed in a20×20×20grid in a cosθtr?φtr?cosθK?cube.The distribution is?tted to a three-dimensional polynomial with correlations taken into account.The e?ciency is almost?at except in the region cosθK?～1,where the pion is slow so that the e?ciency is reduced. The angular distribution function for the cross-feed background(ADF cf)is determined from the distribution in Monte Carlo events.The function for the non-resonant production(ADF nr)is determined from events in the sideband of the Kπmass distribution.The distribution for the combinatorial background (ADF combi)is obtained from events in the sideband of the beam-constrained mass.These distributions are parameterized as polynomials where the param-eters are determined from the?t. In the?t to the angular distributions,the imaginary part of A0is de?ned to be zero relative to the imaginary parts of the other amplitudes since the over-all phase of the decay amplitudes is arbitrary.By applying the normalization condition(3),four parameters,|A0|2,|A⊥|2,arg(A )and arg(A⊥)are left be determined from the?t.The normalization of the PDF(N)is calculated by numerical integration over the three dimensional angular cube whenever pa-rameter values are changed.A likelihood is de?ned as the product of the PDF for all the events and the values of parameters are determined by maximizing the likelihood.We perform separate?ts to the three decay modes as well as a combined?t by de?ning a single likelihood.The parameter values determined from these?ts are summarized in Table2.The projected angular distributions of the data for all K?modes combined are shown in Fig.3.The distributions are corrected for the e?ects of detector acceptance and backgrounds. Systematics in the?t are studied for the following uncertainties:1)e?ciency function(Monte Carlo statistics and e?ect of polarization),2)angular dis-tribution functions for backgrounds,3)background fractions,4)slow pion e?ciency,and5)?t algorithm.These contributions to the systematic error are summarized in Table3.The dominant contributions arise from the de-pendence of the e?ciency and background functions on the polarization,and also the uncertainty in the detection e?ciency for slow pions.The?rst un- certainty is estimated by comparing the functions obtained for Monte Carlo samples generated with and without the polarization in the J/ψK?system. The second uncertainty dominates in the cosθK?distribution where cosθK?is close to1.The uncertainty is estimated by comparing with the results with a cut at cosθK?<0.9for decay modes withπ±and with a cut at cosθK?<0.7 for the mode withπ0.The systematics in the?t algorithm are studied using toy Monte Carlo events.The di?erences between input decay amplitudes for Monte Carlo and the values obtained by the?t are taken as the uncertainties. 5Conclusion Branching fractions for B0→J/ψK?0and B+→J/ψK?+are measured via reconstruction of K?0→K+π?,K?0→K Sπ0,K?+→K+π0,and K?+→K Sπ+with leptonic decays of J/ψ.The resultant branching frac-tions are Br(B0→J/ψK?0)=(1.29±0.05±0.13)×10?3and Br(B+→J/ψK?+)=(1.28±0.07±0.14)×10?3.These values are consistent with the measurements by CLEO[10]and BaBar[13](Table4). The decay amplitudes for B→J/ψK?are measured by?tting the angular distribution of?nal state particles in the transversity basis to a theoretical distribution with the e?ects of the detector acceptance and the background taken into account.In the?t,the sum of amplitudes is normalized to1(|A0|2+ |A |2+|A⊥|2=1)and arg(A0)is de?ned to be zero.The?t is performed using an unbinned maximum likelihood method.From the?t,the values obtained are|A0|2=0.618±0.020±0.027,|A⊥|2=0.191±0.023±0.026,arg(A )= 2.83±0.19±0.08,and arg(A⊥)=?0.09±0.13±0.06.The measured value of|A⊥|2shows that the CP even component dominates in the decay B0→J/ψK?0(K Sπ0).The value is used in the determination of sin2φ1as described in[1].Table5shows the comparison with other measurements.The parameter arg(A )is sensitive to?nal state interactions(FSI).A shift from0orπshows the existence of the FSI.The measured value is consistent with results from other experiments[9][14].However,the signi?cance of its deviation fromπis not su?cient to conclude the existence of FSI. We wish to thank the KEKB accelerator group for the excellent operation of the KEKB accelerator.We acknowledge support from the Ministry of Ed-ucation,Culture,Sports,Science,and Technology of Japan and the Japan Society for the Promotion of Science;the Australian Research Council and the Australian Department of Industry,Science and Resources;the National Science Foundation of China under contract No.10175071;the Department of Science and Technology of India;the BK21program of the Ministry of Education of Korea and the CHEP SRC program of the Korea Science and Engineering Foundation;the Polish State Committee for Scienti?c Research under contract No.2P03B17017;the Ministry of Science and Technology of the Russian Federation;the Ministry of Education,Science and Sport of the Republic of Slovenia;the National Science Council and the Ministry of Education of Taiwan;and the U.S.Department of Energy. References [1]K.Abe et al.(Belle Collaboration),“Observation of Mixing-induced CP Violation in the Neutral B Meson System”,hep-ex/0202027(2002),submitted to Phys.Rev.D;K.Abe et al.(Belle Collaboration),Phys.Rev.Lett.87,091802 (2001). [2] A.Abashian et al.(Belle Collaboration),Nucl.Inst.and Meth.A479,117 (2002). [3] E.Kikutani ed.,KEK Preprint2001-157(2001),to appear in Nucl.Inst.and Meth.A. [4]G.Fox and S.Wolfram,Phys.Rev.Lett41,1581(1978). [5] D.E.Groom et al.(Particle Data Group),Eur.Phys.J.C15,1(2000). [6]H.Albrecht et al.,Phys.Lett.B241,278(1990). [7]See https://www.wendangku.net/doc/ea7399863.html,/public/CLEO/soft/QQ/. [8]R.Brun et al.,GEANT3.21,CERN Report No.DD/EE/84-1(1987). [9] B.Aubert et al.(BaBar Collaboration),Phys.Rev.Lett.87,241801(2001). [10]C.S.Jessop et al.(CLEO Collaboration),Phys.Rev.Lett.79,4533(1997); CLEO Collaboration,CLEO CONF96-24(1996). [11]I.Dunietz,H.Quinn,A.Snyder,W.Toki and H.J.Lipkin,Phys.Rev.D43,2193 (1991). [12]K.Abe,M.Satpathy and H.Yamamoto,“Time-dependent angular analysis of B decays”,hep-ex/0103002(2001). [13]B.Aubert et al.(BaBar Collaboration),Phys.Rev.D65,032001(2002). [14]T.A?older et al.(CDF Collaboration),Phys.Rev.Lett.85,4668(2000). Table1 Measured branching fractions for B0→J/ψK?0and B+→J/ψK?+. Mode B0→J/ψK?0(K+π?) 1.20±0.20±0.15 1.29±0.05±0.13 1.23±0.11±0.15 B+→J/ψK?+(K+π0) B+→J/ψK?+ |A0|2arg(A ) B0→J/ψK?0(K+π?)0.195±0.0230.04±0.13 B+→J/ψK?+(K Sπ+)0.171±0.057?0.45±0.33 B+→J/ψK?+(K+π0)0.194±0.087?0.23±0.56 0.617±0.0202.83±0.19 |A0|2arg(A ) E?ciency0.0030.03 ADF for backgrounds0.0030.04 Background fractions0.0010.01 Slow pion e?ciency0.0260.02 Fit algorithm0.0010.01 0.0270.08 Br(B0→J/ψK?0)(×10?3) CLEO[10]1.41±0.20±0.24 BaBar[13]1.37±0.09±0.11 1.29±0.05±0.13 Table5 Comparison with previous measurements of decay amplitudes in B→J/ψK?.The ?rst(second)quoted error is statistical(systematic). Group|A⊥|2arg(A⊥) 0.52±0.07±0.043.00±0.37±0.04 0.59±0.06±0.012.2±0.5±0.1 0.60±0.03±0.022.50±0.20±0.08 This measurement0.19±0.02±0.03?0.09±0.13±0.06 M(K +π- )0(GeV/c 2) E n t r i e s Fig.1.The invariant Kπmass distribution for B 0→J/ψK ?0(K +π?)candidates.The solid line shows a ?t to two Breit-Wigner functions corresponding to K ?(892) and K ?2 (1430)with a background function (dashed line). (GeV/c 2) M bc E n t r i e s Fig.2.The distributions of the beam-constrained mass for four reconstructed modes.The solid lines show the ?ts. cos θ tr φ tr cos θK *00 N o r m a l i z e d Y i e l d s Fig.3.Projected distributions of cos θtr ,φtr and cos θK ?for the combined data.The distributions are background subtracted and acceptance corrected.The solid line shows the theoretical predictions with the obtained decay amplitudes. 如何写先进个人事迹 篇一：如何写先进事迹材料 如何写先进事迹材料 一般有两种情况：一是先进个人，如先进工作者、优秀党员、劳动模范等；一是先进集体或先进单位，如先进党支部、先进车间或科室，抗洪抢险先进集体等。无论是先进个人还是先进集体，他们的先进事迹，内容各不相同，因此要整理材料，不可能固定一个模式。一般来说，可大体从以下方面进行整理。 (1)要拟定恰当的标题。先进事迹材料的标题，有两部分内容必不可少，一是要写明先进个人姓名和先进集体的名称，使人一眼便看出是哪个人或哪个集体、哪个单位的先进事迹。二是要概括标明先进事迹的主要内容或材料的用途。例如《王鬃同志端正党风的先进事迹》、《关于评选张鬃同志为全国新长征突击手的材料》、《关于评选鬃处党支部为省直机关先进党支部的材料》等。 (2)正文。正文的开头，要写明先进个人的简要情况，包括：姓名、性别、年龄、工作单位、职务、是否党团员等。此外，还要写明有关单位准备授予他(她)什么荣誉称号，或给予哪种形式的奖励。对先进集体、先进单位，要根据其先进事迹的主要内容，寥寥数语即应写明，不须用更多的文字。 然后，要写先进人物或先进集体的主要事迹。这部分内容是全篇材料 的主体，要下功夫写好，关键是要写得既具体，又不繁琐；既概括，又不抽象；既生动形象，又很实在。总之，就是要写得很有说服力，让人一看便可得出够得上先进的结论。比如，写一位端正党风先进人物的事迹材料，就应当着重写这位同志在发扬党的优良传统和作风方面都有哪些突出的先进事迹，在同不正之风作斗争中有哪些突出的表现。又如，写一位搞改革的先进人物的事迹材料，就应当着力写这位同志是从哪些方面进行改革的，已经取得了哪些突出的成果，特别是改革前后的．经济效益或社会效益都有了哪些明显的变化。在写这些先进事迹时，无论是先进个人还是先进集体的，都应选取那些具有代表性的具体事实来说明。必要时还可运用一些数字，以增强先进事迹材料的说服力。 为了使先进事迹的内容眉目清晰、更加条理化，在文字表述上还可分成若干自然段来写，特别是对那些涉及较多方面的先进事迹材料，采取这种写法尤为必要。如果将各方面内容材料都混在一起，是不易写明的。在分段写时，最好在每段之前根据内容标出小标题，或以明确的观点加以概括，使标题或观点与内容浑然一体。 最后，是先进事迹材料的署名。一般说，整理先进个人和先进集体的材料，都是以本级组织或上级组织的名义；是代表组织意见的。因此，材料整理完后，应经有关领导同志审定，以相应一级组织正式署名上报。这类材料不宜以个人名义署名。 写作典型经验材料-般包括以下几部分： (1)标题。有多种写法，通常是把典型经验高度集中地概括出来，一 How to manage time Time treats everyone fairly that we all have 24 hours per day. Some of us are capable to make good use of time while some find it hard to do so. Knowing how to manage them is essential in our life. Take myself as an example. When I was still a senior high student, I was fully occupied with my studies. Therefore, I hardly had spare time to have fun or develop my hobbies. But things were changed after I entered university. I got more free time than ever before. But ironically, I found it difficult to adjust this kind of brand-new school life and there was no such thing called time management on my mind. It was not until the second year that I realized I had wasted my whole year doing nothing. I could have taken up a Spanish course. I could have read ten books about the stories of successful people. I could have applied for a part-time job to earn some working experiences. B ut I didn’t spend my time on any of them. I felt guilty whenever I looked back to the moments that I just sat around doing nothing. It’s said that better late than never. At least I had the consciousness that I should stop wasting my time. Making up my mind is the first step for me to learn to manage my time. Next, I wrote a timetable, setting some targets that I had to finish each day. For instance, on Monday, I must read two pieces of news and review all the lessons that I have learnt on that day. By the way, the daily plan that I made was flexible. If there’s something unexpected that I had to finish first, I would reduce the time for resting or delay my target to the next day. Also, I would try to achieve those targets ahead of time that I planed so that I could reserve some more time to relax or do something out of my plan. At the beginning, it’s kind of difficult to s tick to the plan. But as time went by, having a plan for time in advance became a part of my life. At the same time, I gradually became a well-organized person. Now I’ve grasped the time management skill and I’m able to use my time efficiently. 英语演讲稿：未来的工作 这篇《英语演讲稿范文：未来的工作》，是特地，希望对大家有所帮助！ 热门演讲推荐：竞聘演讲稿 | 国旗下演讲稿 | 英语演讲稿 | 师德师风演讲稿 | 年会主持词 | 领导致辞 everybody good afternoon:. first of all thank the teacher gave me a story in my own future ideal job. everyone has a dream job. my dream is to bee a boss, own a pany. in order to achieve my dreams, i need to find a good job, to accumulate some experience and wealth, it is the necessary things of course, in the school good achievement and rich knowledge is also very important. good achievement and rich experience can let me work to make the right choice, have more opportunities and achievements. at the same time, munication is very important, because it determines whether my pany has a good future development. so i need to exercise their municative ability. i need to use all of the free time to learn 小学生个人读书事迹简介怎么写800字 书,是人类进步的阶梯,苏联作家高尔基的一句话道出了书的重要。书可谓是众多名人的“宠儿”。历来,名人说出关于书的名言数不胜数。今天小编在这给大家整理了小学生个人读书事迹,接下来随着小编一起来看看吧! 小学生个人读书事迹1 “万般皆下品,惟有读书高”、“书中自有颜如玉,书中自有黄金屋”,古往今来,读书的好处为人们所重视,有人“学而优则仕”,有人“满腹经纶”走上“传道授业解惑也”的道路……但是,从长远的角度看,笔者认为读书的好处在于增加了我们做事的成功率,改善了生活的质量。 三国时期的大将吕蒙,行伍出身,不重视文化的学习,行文时,常常要他人捉刀。经过主君孙权的劝导,吕蒙懂得了读书的重要性,从此手不释卷,成为了一代儒将,连东吴的智囊鲁肃都对他“刮目相待”。后来的事实证明,荆州之战的胜利,擒获“武圣”关羽,离不开吕蒙的“运筹帷幄,决胜千里”,而他的韬略离不开平时的读书。由此可见,一个人行事的成功率高低,与他的对读书,对知识的重视程度是密切相关的。 的物理学家牛顿曾近说过,“如果我比别人看得更远,那是因为我站在巨人的肩上”,鲜花和掌声面前,一代伟人没有迷失方向,自始至终对读书保持着热枕。牛顿的话语告诉我们,渊博的知识能让我们站在更高、更理性的角度来看问题,从而少犯错误,少走弯路。 读书的好处是显而易见的,但是,在社会发展日新月异的今天,依然不乏对读书,对知识缺乏认知的人,《今日说法》中我们反复看到农民工没有和用人单位签订劳动合同,最终讨薪无果;屠户不知道往牛肉里掺“巴西疯牛肉”是犯法的;某父母坚持“棍棒底下出孝子”,结果伤害了孩子的身心,也将自己送进了班房……对书本,对知识的零解读让他们付出了惨痛的代价,当他们奔波在讨薪的路上,当他们面对高墙电网时,幸福,从何谈起?高质量的生活,从何谈起? 读书,让我们体会到“锄禾日当午,汗滴禾下土”的艰辛;读书,让我们感知到“四海无闲田,农夫犹饿死”的无奈;读书,让我们感悟到“为报倾城随太守,西北望射天狼”的豪情壮志。 读书的好处在于提高了生活的质量,它填补了我们人生中的空白,让我们不至于在大好的年华里无所事事,从书本中,我们学会提炼出有用的信息,汲取成长所需的营养。所以,我们要认真读书,充分认识到读书对改善生活的重要意义,只有这样,才是一种负责任的生活态度。 小学生个人读书事迹2 所谓读一本好书就是交一个良师益友,但我认为读一本好书就是一次大冒险,大探究。一次体会书的过程,真的很有意思,咯咯的笑声,总是从书香里散发;沉思的目光也总是从书本里透露。是书给了我启示,是书填补了我无聊的夜空,也是书带我遨游整个古今中外。所以人活着就不能没有书,只要爱书你就是一个爱生活的人,只要爱书你就是一个大写的人,只要爱书你就是一个懂得珍惜与否的人。可真所谓 关于坚持的英语演讲稿 Results are not important, but they can persist for many years as a commemoration of. Many years ago, as a result of habits and overeating formed one of obesity, as well as indicators of overall physical disorders, so that affects my work and life. In friends to encourage and supervise, the participated in the team Now considered to have been more than three years, neither the fine rain, regardless of winter heat, a day out with 5:00 time. The beginning, have been discouraged, suffering, and disappointment, but in the end of the urging of friends, to re-get up, stand on the playground. 成绩并不重要，但可以作为坚持多年晨跑的一个纪念。多年前，由于庸懒习惯和暴饮暴食，形成了一身的肥胖，以及体检指标的全盘失常，以致于影响到了我的工作和生活。在好友的鼓励和督促下，参加了晨跑队伍。现在算来，已经三年多了，无论天晴下雨，不管寒冬酷暑，每天五点准时起来出门晨跑。开始时，也曾气馁过、痛苦过、失望过，但最后都在好友们的催促下，重新爬起来，站到了操场上。 In fact, I did not build big, nor strong muscles, not a sport-born people. Over the past few years to adhere to it, because I have a team behind, the strength of a strongteam here, very grateful to our team, for a long time, we encourage each other, and with sweat, enjoying common health happy. For example, Friends of the several run in order to maintain order and unable to attend the 10，000 meters race, and they are always concerned about the brothers and promptly inform the place and time, gives us confidence and courage. At the same time, also came on their own inner desire and pursuit for a good health, who wrote many of their own log in order to refuel for their own, and inspiring. 其实我没有高大身材，也没健壮肌肉，天生不属于运动型的人。几年来能够坚持下来，因为我的背后有一个团队，有着强大团队的力量，在这里，非常感谢我们的晨跑队，长期以来，我们相互鼓励着，一起流汗，共同享受着健康带来的快 1.How to build a business that lasts100years 0:11Imagine that you are a product designer.And you've designed a product,a new type of product,called the human immune system.You're pitching this product to a skeptical,strictly no-nonsense manager.Let's call him Bob.I think we all know at least one Bob,right?How would that go? 0:34Bob,I've got this incredible idea for a completely new type of personal health product.It's called the human immune system.I can see from your face that you're having some problems with this.Don't worry.I know it's very complicated.I don't want to take you through the gory details,I just want to tell you about some of the amazing features of this product.First of all,it cleverly uses redundancy by having millions of copies of each component--leukocytes,white blood cells--before they're actually needed,to create a massive buffer against the unexpected.And it cleverly leverages diversity by having not just leukocytes but B cells,T cells,natural killer cells,antibodies.The components don't really matter.The point is that together,this diversity of different approaches can cope with more or less anything that evolution has been able to throw up.And the design is completely modular.You have the surface barrier of the human skin,you have the very rapidly reacting innate immune system and then you have the highly targeted adaptive immune system.The point is,that if one system fails,another can take over,creating a virtually foolproof system. 1:54I can see I'm losing you,Bob,but stay with me,because here is the really killer feature.The product is completely adaptive.It's able to actually develop targeted antibodies to threats that it's never even met before.It actually also does this with incredible prudence,detecting and reacting to every tiny threat,and furthermore, remembering every previous threat,in case they are ever encountered again.What I'm pitching you today is actually not a stand-alone product.The product is embedded in the larger system of the human body,and it works in complete harmony with that system,to create this unprecedented level of biological protection.So Bob,just tell me honestly,what do you think of my product? 2:47And Bob may say something like,I sincerely appreciate the effort and passion that have gone into your presentation,blah blah blah-- 2:56(Laughter) 2:58But honestly,it's total nonsense.You seem to be saying that the key selling points of your product are that it is inefficient and complex.Didn't they teach you 80-20?And furthermore,you're saying that this product is siloed.It overreacts, makes things up as it goes along and is actually designed for somebody else's benefit. I'm sorry to break it to you,but I don't think this one is a winner. 关于工作的优秀英语演讲稿 Different people have various ambitions. Some want to be engineers or doctors in the future. Some want to be scientists or businessmen. Still some wish to be teachers or lawers when they grow up in the days to come. Unlike other people, I prefer to be a farmer. However, it is not easy to be a farmer for Iwill be looked upon by others. Anyway,what I am trying to do is to make great contributions to agriculture. It is well known that farming is the basic of the country. Above all, farming is not only a challenge but also a good opportunity for the young. We can also make a big profit by growing vegetables and food in a scientific way. Besides we can apply what we have learned in school to farming. Thus our countryside will become more and more properous. I believe that any man with knowledge can do whatever they can so long as this job can meet his or her interest. All the working position can provide him with a good chance to become a talent. 1 ————来源网络整理，仅供供参考 个人先进事迹简介 01 在思想政治方面,xxxx同学积极向上,热爱祖国、热爱中国共产党,拥护中国共产党的领导.利用课余时间和党课机会认真学习政治理论,积极向党组织靠拢. 在学习上,xxxx同学认为只有把学习成绩确实提高才能为将来的实践打下扎实的基础,成为社会有用人才.学习努力、成绩优良. 在生活中,善于与人沟通,乐观向上,乐于助人.有健全的人格意识和良好的心理素质和从容、坦诚、乐观、快乐的生活态度,乐于帮助身边的同学,受到师生的好评. 02 xxx同学认真学习政治理论,积极上进,在校期间获得原院级三好生,和校级三好生,优秀团员称号,并获得三等奖学金. 在学习上遇到不理解的地方也常常向老师请教,还勇于向老师提出质疑.在完成自己学业的同时,能主动帮助其他同学解决学习上的难题,和其他同学共同探讨,共同进步. 在社会实践方面,xxxx同学参与了中国儿童文学精品“悦”读书系,插画绘制工作,xxxx同学在班中担任宣传委员,工作积极主动,认真负责,有较强的组织能力.能够在老师、班主任的指导下独立完成学院、班级布置的各项工作. 03 xxx同学在政治思想方面积极进取,严格要求自己.在学习方面刻苦努力,不断钻研,学习成绩优异,连续两年荣获国家励志奖学金；作 为一名学生干部,她总是充满激情的迎接并完成各项工作,荣获优秀团干部称号.在社会实践和志愿者活动中起到模范带头作用. 04 xxxx同学在思想方面,积极要求进步,为人诚实,尊敬师长.严格 要求自己.在大一期间就积极参加了党课初、高级班的学习,拥护中国共产党的领导,并积极向党组织靠拢. 在工作上,作为班中的学习委员,对待工作兢兢业业、尽职尽责 的完成班集体的各项工作任务.并在班级和系里能够起骨干带头作用.热心为同学服务,工作责任心强. 在学习上,学习目的明确、态度端正、刻苦努力,连续两学年在 班级的综合测评排名中获得第1.并荣获院级二等奖学金、三好生、优秀班干部、优秀团员等奖项. 在社会实践方面,积极参加学校和班级组织的各项政治活动,并 在志愿者活动中起到模范带头作用.积极锻炼身体.能够处理好学习与工作的关系,乐于助人,团结班中每一位同学,谦虚好学,受到师生的好评. 05 在思想方面,xxxx同学积极向上,热爱祖国、热爱中国共产党,拥护中国共产党的领导.作为一名共产党员时刻起到积极的带头作用,利用课余时间和党课机会认真学习政治理论. 在工作上,作为班中的团支部书记,xxxx同学积极策划组织各类 团活动,具有良好的组织能力. 在学习上,xxxx同学学习努力、成绩优良、并热心帮助在学习上有困难的同学,连续两年获得二等奖学金. 在生活中,善于与人沟通,乐观向上,乐于助人.有健全的人格意 识和良好的心理素质. 尊敬的领导，老师，亲爱的同学们， 大家好！我是5班的梁浩东。今天早上我坐车来学校的路上，我仔细观察了路上形形色色的人，有开着小车衣着精致的叔叔阿姨，有市场带着倦容的卖各种早点的阿姨，还有偶尔穿梭于人群中衣衫褴褛的乞丐。于是我问自己，十几年后我会成为怎样的自己，想成为社会成功人士还是碌碌无为的人呢，答案肯定是前者。那么十几年后我怎样才能如愿以偿呢，成为一个受人尊重，有价值的人呢？正如我今天演讲的题目是：自主管理。 大家都知道爱玩是我们孩子的天性，学习也是我们的责任和义务。要怎样处理好这些矛盾，提高自主管理呢？ 首先，我们要有小主人翁思想，自己做自己的主人，要认识到我们学习，生活这一切都是我们自己走自己的人生路，并不是为了报答父母，更不是为了敷衍老师。 我认为自主管理又可以理解为自我管理，在学习和生活中无处不在，比如通过老师，小组长来管理约束行为和同学们对自身行为的管理都属于自我管理。比如我们到一个旅游景点，看到一块大石头，有的同学特别兴奋，会想在上面刻上：某某某到此一游话。这时你就需要自我管理，你需要提醒自己，这样做会破坏景点，而且是一种素质低下的表现。你设想一下，如果别人家小孩去你家墙上乱涂乱画，你是何种感受。同样我们把自主管理放到学习上，在我们想偷懒，想逃避，想放弃的时候，我们可以通过自主管理来避免这些，通过他人或者自己的力量来完成。例如我会制定作息时间计划表，里面包括学习，运动，玩耍等内容的完成时间。那些学校学习尖子，他们学习好是智商高于我们吗，其实不然，在我所了解的哪些优秀的学霸传授经验里，就提到要能够自我管理，规范好学习时间的分分秒秒，只有辛勤的付出，才能取得优异成绩。 在现实生活中，无数成功人士告诉我们自主管理的重要性。十几年后我想成为一位优秀的，为国家多做贡献的人。亲爱的同学们，你们们？让我们从现在开始重视和执行自主管理，十几年后成为那个你想成为的人。 谢谢大家！ 关于工作的英语演讲稿 【篇一：关于工作的英语演讲稿】 关于工作的英语演讲稿 different people have various ambitions. some want to be engineers or doctors in the future. some want to be scientists or businessmen. still some wish to be teachers or lawers when they grow up in the days to come. unlike other people, i prefer to be a farmer. however, it is not easy to be a farmer for iwill be looked upon by others. anyway,what i am trying to do is to make great contributions to agriculture. it is well known that farming is the basic of the country. above all, farming is not only a challenge but also a good opportunity for the young. we can also make a big profit by growing vegetables and food in a scientific way. besides we can apply what we have learned in school to farming. thus our countryside will become more and more properous. i believe that any man with knowledge can do whatever they can so long as this job can meet his or her interest. all the working position can provide him with a good chance to become a talent. 【篇二：关于责任感的英语演讲稿】 im grateful that ive been given this opportunity to stand here as a spokesman. facing all of you on the stage, i have the exciting feeling of participating in this speech competition. the topic today is what we cannot afford to lose. if you ask me this question, i must tell you that i think the answer is a word---- responsibility. in my elementary years, there was a little girl in the class who worked very hard, however she could never do satisfactorily in her lessons. the teacher asked me to help her, and it was obvious that she expected a lot from me. but as a young boy, i was so restless and thoughtless, i always tried to get more time to play and enjoy myself. so she was always slighted over by me. one day before the final exam, she came up to me and said, could you please explain this to me? i can not understand it. i Dear teacher and colleagues: my topic is on “spare time”. It is a huge blessing that we can work 996. Jack Ma said at an Ali's internal communication activity, That means we should work at 9am to 9pm, 6 days a week .I question the entire premise of this piece. but I'm always interested in hearing what successful and especially rich people come up with time .So I finally found out Jack Ma also had said :”i f you don’t put out more time and energy than others ,how can you achieve the success you want? If you do not do 996 when you are young ,when will you ?”I quite agree with the idea that young people should fight for success .But there are a lot of survival activities to do in a day ,I want to focus on how much time they take from us and what can we do with the rest of the time. As all we known ,There are 168 hours in a week .We sleep roughly seven-and-a-half and eight hours a day .so around 56 hours a week . maybe it is slightly different for someone . We do our personal things like eating and bathing and maybe looking after kids -about three hours a day .so around 21 hours a week .And if you are working a full time job ,so 40 hours a week , Oh! Maybe it is impossible for us at 关于人英语演讲稿(精选多篇) 关于人的优美句子 1、“黑皮小子”是我对在公交车上偶遇两次的一个男孩的称呼代号。一听这个外号，你也定会知道他极黑了。他的脸总是黑黑的；裸露在短袖外的胳膊也是黑黑的；就连两只有厚厚耳垂的耳朵也那么黑黑的，时不时像黑色的猎犬竖起来倾听着什么；黑黑的扁鼻子时不时地深呼吸着，像是在警觉地嗅着什么异样的味道。 2、我不知道，如何诠释我的母亲，因为母亲淡淡的生活中却常常跳动着不一样的间最无私、最伟大、最崇高的爱，莫过于母爱。无私，因为她的爱只有付出，无需回报；伟大，因为她的爱寓于 普通、平凡和简单之中；崇高，是因为她的爱是用生命化作乳汁，哺育着我，使我的生命得以延续，得以蓬勃，得以灿烂。 3、我的左撇子伙伴是用左手写字的，就像我们的右手一样挥洒自如。在日常生活中，曾见过用左手拿筷子的，也有像超级林丹用左手打羽毛球的，但很少碰见用左手写字的。中国汉字笔画笔顺是左起右收，适合用右手写字。但我的左撇子伙伴写字是右起左收的，像鸡爪一样迈出田字格，左看右看，上看下看，每一个字都很难看。平时考试时间终了，他总是做不完试卷。于是老师就跟家长商量，决定让他左改右写。经过老师引导，家长配合，他自己刻苦练字，考试能够提前完成了。现在他的字像他本人一样阳光、帅气。 4、老师，他们是辛勤的园丁，帮助着那些幼苗茁壮成长。他们不怕辛苦地给我们改厚厚一叠的作业，给我们上课。一步一步一点一点地给我们知识。虽然 他们有时也会批评一些人，但是他们的批评是对我们有帮助的，我们也要理解他们。那些学习差的同学，老师会逐一地耐心教导，使他们的学习突飞猛进。使他们的耐心教导培养出了一批批优秀的人才。他们不怕辛苦、不怕劳累地教育着我们这些幼苗，难道不是美吗？ 5、我有一个表妹，还不到十岁，她那圆圆的小脸蛋儿，粉白中透着粉红，她的头发很浓密，而且好像马鬓毛一样的粗硬，但还是保留着孩子一样的蓬乱的美，卷曲的环绕着她那小小的耳朵。说起她，她可是一个古灵精怪的小女孩。 6、黑皮小子是一个善良的人，他要跟所有见过的人成为最好的朋友！这样人人都是他的好朋友，那么人人都是好友一样坦诚、关爱相交，这样人与人自然会和谐起来，少了许多争执了。 7、有人说，老师是土壤，把知识化作养分，传授给祖国的花朵，让他们茁壮成长。亦有人说，老师是一座知识的桥梁，把我们带进奇妙的科学世界，让 优秀党务工作者事迹简介范文 优秀党务工作者事迹简介范文 ***，男，198*年**月出生，200*年加入党组织，现为***支部书记。从事党务工作以来，兢兢业业、恪尽职守、辛勤工作，出色地完成了各项任务，在思想上、政治上同党中央保持高度一致，在业务上不断进取，团结同事，在工作岗位上取得了一定成绩。 一、严于律己，勤于学习 作为一名党务工作者，平时十分注重知识的更新，不断加强党的理论知识的学习，坚持把学习摆在重要位置，学习领会和及时掌握党和国家的路线、方针、政策，特别是党的十九大精神，注重政治理论水平的提高，具有坚定的理论信念;坚持党的基本路线，坚决执行党的各项方针政策，自觉履行党员义务，正确行使党员权利。平时注重加强业务和管理知识的学习，并运用到工作中去，不断提升自身工作能力，具有开拓创新精神，在思想上、政治上和行动上时刻同党中央保持高度一致。 二、求真务实，开拓进取 在工作中任劳任怨，踏实肯干，坚持原则，认真做好学院的党务工作，按照党章的要求，严格发展党员的每一个步骤，认真细致的对待每一份材料。配合党总支书记做好学院的党建工作，完善党总支建设方面的文件、材料和工作制度、管理制度等。 三、生活朴素，乐于助人 平时重视与同事间的关系，主动与同事打成一片，善于发现他人的难处，及时妥善地给予帮助。在其它同志遇到困难时，积极主动伸出援助之手，尽自己最大努力帮助有需要的人。养成了批评与自我批评的优良作风，时常反省自己的工作，学习和生活。不但能够真诚的指出同事的缺点，也能够正确的对待他人的批评和意见。面对误解，总是一笑而过，不会因为误解和批评而耿耿于怀，而是诚恳的接受，从而不断的提高自己。在生活上勤俭节朴，不铺张浪费。 身为一名老党员，我感到责任重大，应该做出表率，挤出更多的时间来投入到**党总支的工作中，不找借口，不讲条件，不畏困难，将总支建设摆在更重要的位置，解开工作中的思想疙瘩，为攻坚克难铺平道路，以支部为纽带，像战友一样团结，像家庭一样维系，像亲人一样关怀，践行入党誓言。把握机遇，迎接挑战，不负初心。 关于时间的英语演讲稿范文_演讲稿 and organizing people to learn from advanced areas to broaden their horizons in order to understand the team of cadres working conditions in schools, the ministry of education has traveled a number of primary and secondary schools to conduct research, listen to the views of the school party and government leaders to make school leadership cadres receive attention and guidance of the ministry of education to carry out a variety of practical activities to actively lead the majority of young teachers work hard to become qualified personnel and for them to put up the cast talent stage, a single sail swaying, after numerous twists and turns arrived in port, if there is wind, a hand, and naturally smooth arrival and guide students to strive to e xcel, need to nazhen “wind” - teacher. teachers should be ideological and moral education, culture education and the needs of students organically combining various activities for the students or students to carry out their own. for example: school quiz competitions, essay contests, ke benju performances and other activities to enable students to give full play to their talents. teachers rush toil, in order to that will enable students to continue to draw nutrients, to help them grow up healthily and become pillars of the country before. for all students in general education, the government departments have also not forget those who cared about the如何写先进个人事迹
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