Chinese Physics C > 2004, Vol. 28 > Issue(10): 1026-1032

Test of Flavor Independence in Strong Interaction

LIU Xi-Ming^,

Department of Physics,Shandong University,Ji'nan 250100,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The flavour independence of the strong coupling is a fundmental property of quantum chromodynamics(QCD). The observable which can be employed to test flavour independence is the multiplicity of charged hadrons in jets originating from quark of light flavour. In this paper we calculate the average of charged particle multiplicities in light flavour quark jets in e+e-→q 00→h′s events. We find that in e+e-→q00→h′s events with different primary quarks, the average production probability of uds quark. so the yields of directly production hadrons are related to the number of quark pairs. The symmetry of isospin and strangeness suppression factor etc are dependent on the flavor of prompt quark, and this dependence is more obvious in low energy region. But the final average multiplicities of charged particles seem to be equal in three kinds of light q0 jet events, which shows that our results are consistent to the predictions of QCD, i.e. the strong interaction is irrelevant to the quark flavor.

References

[1]

.Ellis R K, Rose D A, Terrano A E. Nucl . Phys. , 1981, B178: 421;Moretti. Phys.Lett. , 1988, B420: 3672. Azimov T I et al. Phys. , 1985, C27: 653. Rowson P C et al(Mark II Collab. ) . Phys. Rev. Lett. , 1985, 54: 2580;Akers R et al ( OPAL Col lab. ) . Z. Phys. , 1994, C61: 209; Abe et al(SLD Collab. ) .Phys. Rev.Lett. , 1994, 72: 3145; Abreu P et al ( DEL..PHI Collab. ) . Phys.Lett. , 1995, B347: 447; Sakuda M et al ( DELCOCollab. ) . Phys.Lett . , 1985, B152: 399; Abbiendi G et al ( OPAL Col-lab. ) . CERN..EP/ 2002-0794. Khoze V A, Ochs W. Int. J. Mod. Phys. , 1997, A12: 29495. Abbiendi G et al ( OPAL Collab. ) . Eur. Phys. J. , 2000, C16: 407 -421.; Eur. Phys. J. , 2000, C19: 257 % 268; Koya Abe et al ( SLD Col..lab. ) . hep..ex/03100176. Pavel et al. Z. Phys. , 1991, C51: 1197. LIU Xi..Ming et al . HEP NP, 2004, 28: 11-16 8. XIE Qu..Bing, LIU Xi..Ming. Phys.Rev. , 1988, D38: 2169-21779. LIU Xi..Ming et al .HEP NP, 2002, 26: 313-318 10. Chliapnikov P V. Phys.Lett. , 1999, B462: 341-35311. Part icle Data Group. Eur.Phys. J. , 2000, C15: 226

[1]	ZHANG Yin-Jie,SHEN Peng-Nian,ZOU Bing-Song. Study of KK strong interaction bound state and K⁺K^－atomic state. Chinese Physics C, 2006, 30(3): 212-216.
[2]	LIU Yu-Xin,MU Liang-Zhu,CHANG Lei,YUAN Wei. Phase Structure and Phase Transition of Nucleus and Strong Interacting Matter. Chinese Physics C, 2006, 30(S2): 29-34.
[3]	MENG Jie,BAN Shu-Fang,LI Jun,LONG Wen-Hui,LU Hong-Feng,SHEN Gang,ZHANG Shuang-Quan,ZHANG Shi-Sheng,ZHANG Wei,ZHOU Shan-Gui,. New Effective Interactions,New Symmetry and New States in Atomic Nuclei. Chinese Physics C, 2004, 28(12): 1291-1296.
[4]	WANG Li-Min,LI Jia-Rong. Dielectric Properties of Nuclear Matter with the ωNN Interaction at High Temperature. Chinese Physics C, 2004, 28(4): 382-386.
[5]	Yu Youwen,Zhang Zongye,Shen Pengnian,Dai Lianrong. Effective Quark-Quark Interaction and Chiral Symmetry. Chinese Physics C, 1995, 19(5): 431-437.
[6]	Chen Jiangchuan,Lu Suiting,Zhu Qingqi,Huo Anxiang. Features of UHE Hadronic Interaction in Fragmentation Region Inferred from the Analysis of MEC Families. Chinese Physics C, 1995, 19(6): 494-499.
[7]	Jing Cailiu,Ding Linkai. A Dependence of Longitudinal Momenta of Secondary Particles on Multiplicity in Hadronic Interactions. Chinese Physics C, 1994, 18(10): 865-869.
[8]	Qin Keyu. Description of Charged Particle Multiplicity Distribution in High Energy Strong Interaction. Chinese Physics C, 1994, 18(4): 347-352.
[9]	FAN Xiao-Ling,ZHANG Chun-Sheng. Application of Hadron-Hadron Nuclear Interaction Parametrization Model in the Study of Superhigh Energy Cosmic Rays. Chinese Physics C, 1992, 16(4): 289-296.
[10]	FAN Xiao-Ling,ZHANG Chun-Sheng. A Parametrization Model of Hadron-Hadron Nuclear Interaction. Chinese Physics C, 1992, 16(2): 97-104.
[11]	DING Lin-Kai. FRAGMENTATION REGION BEHAVIOUR OF HIGH ENERGY HADRONIC INTERACTIONS. Chinese Physics C, 1990, 14(5): 399-406.
[12]	WEI Chu-Lin,FU De-Ji,XU Gong-Ou. VARIATION OF NUCLEAR DEFORMATION WITH Z,N AND CHARGE INDEPENDENCE OF NUCLEON-NUCLEON INTERACTIONS. Chinese Physics C, 1990, 14(5): 456-463.
[13]	LONG Gui-Lu,SUN Hong-Zhou. GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS. Chinese Physics C, 1989, 13(9): 849-855.
[14]	GU Ying-Qi,MA Zhong-Yu,ZHUO Yi-Zhong. QUARK SELF-ENERGY DUE TO QUARK-PION INTERACTION. Chinese Physics C, 1987, 11(3): 362-368.
[15]	LI Yang-Guo,MA Wei-Xing.S-WAVE πN INTERACTION IN (π⁺d) REACTION. Chinese Physics C, 1985, 9(3): 291-299.
[16]	CHENG Tan-Sheng,ZHONG Yu-Shu,XU Zhan. LONG RANGE POTENTIAL BETWEEN NUCLEONS. Chinese Physics C, 1984, 8(1): 91-98.
[17]	WANG XIU-JIANG,FAN JI. THE MESON EXCHANGE POTENTIALS OF THE Σ-N INTERACTION. Chinese Physics C, 1983, 7(6): 709-715.
[18]	FENG REN-FA,ZHANG XI-ZHEN,WU XI-ZHEN,ZHUO YI-ZHONG. VISCOSITY COEFFICENT WITH THE PAIRING INTERACTION. Chinese Physics C, 1982, 6(4): 448-452.
[19]	GUO HAN-YING. THE INDUCED KALUZA TYPE INTERACTIONS. Chinese Physics C, 1982, 6(2): 247-250.
[20]	Zhou Guang-zhao,Gao Chong-shou. IS THERE ANY SYMMETRY BETWEEN FLAVOUR AND COLOUR GAUGE INTERACTIONS?. Chinese Physics C, 1980, 4(4): 536-538.

Access

Get Citation

LIU Xi-Ming. Test of Flavor Independence in Strong Interaction[J]. Chinese Physics C, 2004, 28(10): 1026-1032.

LIU Xi-Ming. Test of Flavor Independence in Strong Interaction[J]. Chinese Physics C, 2004, 28(10): 1026-1032. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-04-14
Revised: 1900-01-01

Article Metric

Article Views(3571)
PDF Downloads(555)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Test of Flavor Independence in Strong Interaction

LIU Xi-Ming^,

Corresponding author:LIU Xi-Ming,

Department of Physics,Shandong University,Ji'nan 250100,China

Received Date:2004-04-14
Accepted Date:1900-01-01
Available Online:2004-10-05

Abstract:The flavour independence of the strong coupling is a fundmental property of quantum chromodynamics(QCD). The observable which can be employed to test flavour independence is the multiplicity of charged hadrons in jets originating from quark of light flavour. In this paper we calculate the average of charged particle multiplicities in light flavour quark jets in e+e-→q 00→h′s events. We find that in e+e-→q00→h′s events with different primary quarks, the average production probability of uds quark. so the yields of directly production hadrons are related to the number of quark pairs. The symmetry of isospin and strangeness suppression factor etc are dependent on the flavor of prompt quark, and this dependence is more obvious in low energy region. But the final average multiplicities of charged particles seem to be equal in three kinds of light q0 jet events, which shows that our results are consistent to the predictions of QCD, i.e. the strong interaction is irrelevant to the quark flavor.