Fragmentation of Light Initial Quarks into Charm Measons in e<SUP>+</SUP>e<SUP>－</SUP> Annihilation

JIN Yi; LI Shi-Yuan; XIE Qu-Bing

Chinese Physics C> 2003, Vol. 27> Issue(10) : 852-856

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

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Abstract：
We study the process that the light initial quarks produced in e+ e- annihilation combine with the c from glu-on splitting to form D's (D-+D6-+D0) or D 's(D-*+ Ds*-+D*0). The 'light + heavy' bound state is described by light-cone wavefunction. The contribution of this process to D (D ) production at Z⁰ pole is much larger compared with that in lower energies (e.g. 10.6GeV) . For this special process, the invariant mass of D(D) and the charm had-ron fragmented from the c quark has a unique spectrum which peaks near 2 MB if we constrain the D(D*) from all processes with energy larger than 20GeV. It is also noticeable that the produced D* in this process is dominantly longitudinally polarized, which is consistent with the OPAL data.

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[1]

Bodwin G T, Braaten L, Lepage G P. Phys. Rev., 1995, D51:1125; 1997, D55:5853(E)2 Lee J. hep–ph/0208238 3 LI Shi–Yuan, XIE Qu–Bing, WANG Qun. Phys. Lett. , 2000, B482:654 Bodwin G T, Lee J. hep–ph/0212352, hep–ph/0212181 ; LIU K Y, HE Z G, CHAO K T. hep–ph/02111815 Abe K et al (Belle Collaboration). Phys. Rev. Lett., 2002, 89: 142001; Choi S K et al (Belle Collaboration). Phys. Rev. Lett., 2002, 89:102001 ; 89:129901(E)6 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev. Lett., 2002, 89: 1220027 Aitala E M et al (E791 Collaboration). Phys. Lett., 1996, B371: 157; 1997, 411:230; Alves G A et al (E769 Collaboration). Phys. Rev. Lett., 1994, 72: 812; 1996, 77: 2392; Adamovich M et al (BEATRICE Collaboration). Nucl. Phys. , 1997 ; 11495 : 3 ; Adamovich M et al (WA82 Collaboration). Phys. Lett., 1993, B305:4028 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev., 2002, D66:0340039 Braaten E, JIA Yu. Mehen Thomas. Phys. Rev., 2002, D66:01400310 CHANG Chao–Hsi, MA Jian–Ping, SI Zong–Guo. hep–ph/030125311 Grozin A G, Neubert M. Phys. Rev., 1997, D55:27212 Beneke M, Feldmann T. Nucl. Phys., 2001, B592:313 Sjostrand T. Comput. Phys. Commun., 1986, 39:34714 Particle Data Group, Hagiwara K et al. Phys. Rev., 2002, 1966: 01000115 Aekerstaff K et al (OPAL Collaboration). Z. Phys., 1997, C74:43716 CHEN E–Sheng. HEPNP, 1993, 17(3) :252(in Chinese)(陈鄂生.高能物理与核物理,1993,17(3) :252)17 WANG Qun, XIE Qu–Bing, CHEN E–Sheng. HEPNP, 1994, 18(10) :902(in Chinese)(王群,谢去病,陈鄂生.高能物理与核物理,1994,18(10) :902)18 XU Qing–Hua, LIU Chun–Xiu, LIANG Zuo–Tang. Phys. Rev., 2001, D63:111301(R)

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[2]	LIU Xi-Ming , WANG Yong-Gang , ZHANG Xue-Yao . Hadrons Production from Light Quark Jets in e^＋e^－ Annihilation. Chinese Physics C, 2004, 28(1): 11-16.
[3]	HUANG Jin-Shu , PAN Qun-Na , SONG Tai-Ping , LU Lin-Xia . Associate Production of the top-Pion with b Quark Pair in TC2 Model at High Energy e⁺e^－ Colliders. Chinese Physics C, 2003, 27(7): 571-573.
[4]	BES Collaboration . Measurement of Production Cross Section of D_s⁺D_s^－ in e⁺e^－ Annihilation at the Center-of-Mass Energy of s=4.03GeV. Chinese Physics C, 2001, 25(6): 465-475.
[5]	Si Zongguo , Xie Qubing . Studying e⁺e^－→h′s Process by Event Generator of Quark Combination Model. Chinese Physics C, 1999, 23(5): 445-458.
[6]	Chen Esheng , Wang Qun , Xie Qubing , Chen Yan . Multiplicity of D^*± in e⁺e^－ Annihilation at s=29─35Gev. Chinese Physics C, 1998, 22(3): 234-240.
[7]	Lu Gongru , Li Haibo , Yang Yadong . One Loop PGBs Effects on tt Production in High Energy e⁺e^- Annihilation. Chinese Physics C, 1996, 20(6): 522-532.
[8]	Liu Ximing . The Final State Multiplicity Rates of η and η＇IN e⁺e^－ Annihilation at High Energy. Chinese Physics C, 1994, 18(12): 1091-1095.
[9]	He Jingtang , Zhu Guoyi , La Yusheng , Dong Xiaoli . Search for Light Neutral Particle in Low Energy e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(5): 404-408.
[10]	Wang Qun , Xie Qubing . Production Percentages of L=1 Excited Baryons in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 807-812.
[11]	Liu Ximing . Difference of Particle Multiplicities Between Quark Jets of Different Flavors in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 829-835.
[12]	CHEN E-Sheng . Average Yields of Long-Lived Charged Particles in High Energy e⁺e^－ Annihilation. Chinese Physics C, 1993, 17(3): 252-261.
[13]	CHEN E-Sheng , LI Ming-Ming . Yields of Charmed and Beautiful Mesons in e⁺e^－ Annihilation at s=10—178GeV 的e⁺e^-. Chinese Physics C, 1991, 15(11): 981-990.
[14]	LIU Xi-Ming , WU Hua-You . THE FRAGMENTATION OF GLUON OF GLUON IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(11): 1001-1006.
[15]	LIU Xi-Ming . THE FRAGMENTATION SCHEMES IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(1): 31-35.
[16]	CHEN E-Sheng , XIE Qu-Bing . THE RATIO OF CHARMED BARYON TO MESON IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(4): 319-324.
[17]	LIU Xi-Ming . BARYON PRODUCTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1989, 13(9): 803-807.
[18]	CHEN Zhi-Jiang , XIE Qu-Bing , MA Wen-Jun . THE NEAREST CORRELATION IN RAPIDITY AND THE MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1988, 12(6): 742-748.
[19]	QIU Zhong-Ping , CAI Xu . CYLINDRICAL BAG MODEL OF PARTICLE PRODUCTION IN HIGH ENERGY e⁺e^－ ANNIHILATION. Chinese Physics C, 1988, 12(5): 708-711.
[20]	LIANG Zuo-Tang , XIE Qu-Bing . MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1987, 11(6): 840-843.

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JIN Yi, LI Shi-Yuan and XIE Qu-Bing. Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation[J]. Chinese Physics C, 2003, 27(10): 852-856.

JIN Yi, LI Shi-Yuan and XIE Qu-Bing. Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation[J]. Chinese Physics C, 2003, 27(10): 852-856. shu

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Received: 2003-02-17
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Corresponding author: JIN Yi,

School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

Received Date: 2003-02-17

Accepted Date: 1900-01-01

Available Online: 2003-10-05

Abstract: We study the process that the light initial quarks produced in e+ e- annihilation combine with the c from glu-on splitting to form D's (D-+D6-+D0) or D 's(D-*+ Ds*-+D*0). The 'light + heavy' bound state is described by light-cone wavefunction. The contribution of this process to D (D ) production at Z⁰ pole is much larger compared with that in lower energies (e.g. 10.6GeV) . For this special process, the invariant mass of D(D) and the charm had-ron fragmented from the c quark has a unique spectrum which peaks near 2 MB if we constrain the D(D*) from all processes with energy larger than 20GeV. It is also noticeable that the produced D* in this process is dominantly longitudinally polarized, which is consistent with the OPAL data.

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Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

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Fragmentation of Light Initial Quarks into Charm Measons in e+e－ Annihilation

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Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation

Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation