Measurement of inclusive momentum spectra and multiplicity distributions of charged particles at s∼2–5 GeV

J. Z. Bai,Y. Ban,J. G. Bian,X. Cai,J. F. Chang,H. F. Chen,H. S. Chen,Jie Chen,Y. B. Chen,S. P. Chi,Y. P. Chu,X. Z. Cui,Y. S. Dai,L. Y. Dong,Z. Z. Du,W. Dunwoodie,J. Fang,S. S. Fang,H. Y. Fu,L. P. Fu,C. S. Gao,Y. N. Gao,M. Y. Gong,S. D. Gu,Y. N. Guo,Y. Q. Guo,Z. J. Guo,S. W. Han,F. A. Harris,J. He,K. L. He,M. He,X. He,Y. K. Heng,T. Hong,H. M. Hu,T. Hu,G. S. Huang,X. P. Huang,J. M. Izen,X. B. Ji,C. H. Jiang,X. S. Jiang,D. P. Jin,S. Jin,Y. Jin,B. D. Jones,Z. J. Ke,D. Kong,Y. F. Lai,G. Li,H. H. Li,J. Li,J. C. Li,Q. J. Li,R. Y. Li,W. Li,W. G. Li,X. Q. Li,C. F. Liu,F. Liu,H. M. Liu,J. P. Liu,R. G. Liu,T. R. Liu,Y. Liu,Z. A. Liu,Z. X. Liu,X. C. Lou,G. R. Lu,F. Lu,H. J. Lu,J. G. Lu,Z. J. Lu,X. L. Luo,E. C. Ma,F. C. Ma,J. M. Ma,R. Malchow,Z. P. Mao,X. C. Meng,X. H. Mo,J. Nie,Z. D. Nie,S. L. Olsen,D. Paluselli,H. P. Peng,N. D. Qi,C. D. Qian,J. F. Qiu,G. Rong,D. L. Shen,H. Shen,X. Y. Shen,H. Y. Sheng,F. Shi,H. S. Sun,S. S. Sun,Y. Z. Sun,X. Tang,D. Tian,W. Toki,G. L. Tong,G. S. Varner,J. Wang,J. Z. Wang,L. Wang,L. S. Wang,M. Wang,Meng Wang,P. Wang,P. L. Wang,W. F. Wang,Y. F. Wang,Y. Y. Wang,Z. Wang,Zheng Wang,Z. Y. Wang,C. L. Wei,N. Wu,X. M. Xia,X. X. Xie,G. F. Xu,Y. Xu,S. T. Xue,M. L. Yan,W. B. Yan,C. Y. Yang,G. A. Yang,H. X. Yang,M. H. Ye,S. W. Ye,Y. X. Ye,J. Ying,C. S. Yu,G. W. Yu,C. Z. Yuan,J. M. Yuan,Y. Yuan,Q. Yue,Y. Zeng,B. X. Zhang,B. Y. Zhang,C. C. Zhang,D. H. Zhang,H. Y. Zhang,J. Zhang,J. W. Zhang,L. Zhang,L. S. Zhang,Q. J. Zhang,S. Q. Zhang,X. Y. Zhang,Y. Y. Zhang,Yiyun Zhang,Z. P. Zhang,D. X. Zhao,Jiawei Zhao,J. W. Zhao,P. P. Zhao,W. R. Zhao,Y. B. Zhao,Z. G. Zhao,J. P. Zheng,L. S. Zheng,Z. P. Zheng,X. C. Zhong,B. Q. Zhou,G. M. Zhou,L. Zhou,K. J. Zhu,Q. M. Zhu,Y. C. Zhu,Y. S. Zhu,Z. A. Zhu,B. A. Zhuang,B. S. Zou,Y. Zhang,Z. Zhang,D. Zhao,Jiawei Zhao,J. Zhao,P. Zhao,W. Zhao,Y. Zhao,Z. Zhao,J. Zheng,L. Zheng,Z. Zheng,X. Zhong,B. Zhou,G. Zhou,L. Zhou,N. Zhou,K. Zhu,Q. Zhu,Yingchun Zhu,Y. Zhu,Z. Zhu,B. Zhuang,B. Zou

PHYSICAL REVIEW D（2004）

Cited 11|Views133

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Abstract

Inclusive momentum spectra and multiplicity distributions of charged particles measured with the BESII detector at center of mass energies of 2.2, 2.6, 3.0, 3.2, 4.6 and 4.8 GeV are presented. Values of the second binomial moment R-2 obtained from the multiplicity distributions are reported. These results are compared with both experimental data from high energy e(+)e(-), ep, and p (p) over bar experiments and QCD calculations.

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Key words

Charged particle,Electron–positron annihilation,Center of mass,Momentum,Quantum chromodynamics,Multiplicity (mathematics),Nuclear physics,Particle physics,Spectral line,Physics,Detector

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