MUON PAIR PRODUCTION IN 16-GEV AND 22-GEV-PI-CU COLLISIONS

被引：28

作者：

ALSPECTOR, J

BORENSTEIN, S

STRAND, RC

KALBFLEISCH, GR

ABASHIAN, A

LEBRITTON, J

MCCAL, D

MELISSINOS, AC

METCALF, W

机构：

[1] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[2] UNIV ROCHESTER,DEPT PHYS & ASTRON,ROCHESTER,NY 14627

[3] NATL SCI FDN,WASHINGTON,DC 20550

来源：

PHYSICS LETTERS B | 1979年 / 81卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(79)90362-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured inclusive muon pair production by 16 and 22 GeV π- on a copper target in a wide aperture magnetic spectrometer. We interpret the data in terms of quark annihilation models and find approximate scaling in the variable τ = M2/s over a wide energy range. At large values of τ the yield of μ-pairs produced by π- is ∼ 100 times that produced by protons. This effect can be understood by assuming appropriate quark distributions for π- and p and thus provides experimental insight into the inner structure of these particles. © 1979.

引用

页码：397 / 400

页数：4