Universal Mass Dependence of Directly Produced Hadron Rates

LIU Xi-Ming; WANG Hai-Long; ZHANG Xue-Yao; WANG Yu-Shui

Chinese Physics C> 2002, Vol. 26> Issue(4) : 313-318

Universal Mass Dependence of Directly Produced Hadron Rates

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

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Abstract：
In virtue of the simple physical picture of quark combination model and the probability for the production of a q_fq_f of a flavor f which is given by treating the pair creation of the qq as a quantum mechanical tunneling effect, an universal mass relation for direct hadron production rates, =Aexp(-bm), is obtained without any additional assumption. It is satisfied by various high energy reactions. This universal mass relation is in agreement with a simple empirical regulation proposed recently and is independent of the mass-center energy and the process of the reactions. This suggests that the mass of hadrons is the primary factor for describing the particle multiplicities.

References

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Andersaon B et al. Phys. Rep., 1983,97: 312 XIE Qu-Bing LIU Xi-Ming. Phys. Rev., 1988. D38: 2169-21773 Chun S B, Buchanan C D. Phys. lett., 1993, B308: 153; Phys. Rep., 1998. 292: 239-3174 Chliapnikov P V et al. Phys. Lett., 1995, B345(2): 313-320; Szczkoweki M. Phys. Lett., 1995. B359(2): 387-392; Szczekoweki M. Wilk G. Phys. Lett., 1996, B374: 225-230; Chliapnikov P V, Uvarov V A. Phys. Lett., 1996. B381: 483-4855 Chliapnikov P V. Phys. Lett., 1999, B462: 341-3536 Pavel et al. Z. Phys., 1991, C51: 1197 Barate R (ALEPH Collab.). Phvs. Rep., 1998, 294: 1

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LIU Xi-Ming, WANG Hai-Long, ZHANG Xue-Yao and WANG Yu-Shui. Universal Mass Dependence of Directly Produced Hadron Rates[J]. Chinese Physics C, 2002, 26(4): 313-318.

LIU Xi-Ming, WANG Hai-Long, ZHANG Xue-Yao and WANG Yu-Shui. Universal Mass Dependence of Directly Produced Hadron Rates[J]. Chinese Physics C, 2002, 26(4): 313-318. shu

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Received: 2001-05-21
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Universal Mass Dependence of Directly Produced Hadron Rates

Corresponding author: LIU Xi-Ming,

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

Received Date: 2001-05-21
Accepted Date: 1900-01-01
Available Online: 2002-04-05

Abstract: In virtue of the simple physical picture of quark combination model and the probability for the production of a q_fq_f of a flavor f which is given by treating the pair creation of the qq as a quantum mechanical tunneling effect, an universal mass relation for direct hadron production rates, =Aexp(-bm), is obtained without any additional assumption. It is satisfied by various high energy reactions. This universal mass relation is in agreement with a simple empirical regulation proposed recently and is independent of the mass-center energy and the process of the reactions. This suggests that the mass of hadrons is the primary factor for describing the particle multiplicities.