摘要
在能区Ｓ＝２０～１８００ＧｅＶ，π介子，Ｋ介子与质子反质子间的粒子数比与电荷不对称性作为横动量ｐ２⊥的函数可用标度分布（ａＱ⊥）νＫν（ａＱ⊥）中的〈ｐ⊥（Ｍｉ）〉Ｍｉ／〈Ｍ〉关联与都普勒效应得到解释．都普勒速度ＶＪ／ｃ为：Ｋ介子发射源的速度比π介子发射源的小，但比质子发射源的速度大．这是强子物理中的新的质量效应．
The experimental data (1974—1990) at S=20—1800GeV of the charge asymmetry and particle ratios of the pion,kaon and protonantiproton as a functions of the transverse momentum can be explained by the relativistic Doppler effects in the scaling (aQ⊥)νKν(aQ⊥)distribution,and the nonlinear correlations 〈p⊥(Mi)〉-Mi/〈M〉.The Doppler speed VJ/c of the kaon emission source is smaller than that of the pion,but is larger than that of the protonantiproton.Which is a new mass effects in multihadron physics.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
1998年第4期298-300,共3页
Journal of Yunnan University(Natural Sciences Edition)
关键词
电荷不对称性
粒子数比
强子物理
charge asymmetry
particle ratios of various hadrons
Doppler effects
collective movement of the Jsource
