Hadronic Production of Massive Muon Pairs: Dependence on Incident Particle Type and on Target Nucleus.
Hadronic Production of Massive Muon Pairs: Dependence on Incident Particle Type and on Target Nucleus.
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大量μ子对的强子产生：对事件粒子类型和目标核的依赖性。
DOI：
10.1103/physrevlett.38.1334
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
E. Rosenberg
中科院分区：
文献类型：
--
作者：
J. Branson;G. Sanders;A. Smith;J. Thaler;K. Anderson;G. G. Henry;K. McDonald;J. Pilcher;E. Rosenberg
将强子-核碰撞中产生的 μ 子对的研究数据与 Drell-Yan 模型进行了比较。等标量目标上 ${\ensuremath{\pi}}^{+}$ 和 ${\ensuremath{\pi}}^{\ensuremath{-}}$ 介子产生的 dimuon 的比较显示了同位旋非守恒电磁过程的电荷不对称特征的证据。配对的平均横向动量随着配对质量的增加而平滑地增加。在碳和锡目标上获取的数据用于提取对目标原子量的依赖性。
Data from a study of muon pairs produced in hadron-nucleus collisions are compared with the Drell-Yan model. Comparison of dimuon production by ${\ensuremath{\pi}}^{+}$ and ${\ensuremath{\pi}}^{\ensuremath{-}}$ mesons on an isoscalar target shows evidence for a charge asymmetry characteristic of an isospin-nonconserving electromagnetic process. The average transverse momentum of the pairs increases smoothly with pair mass. Data taken on carbon and tin targets are used to extract the dependence on target atomic weight.