EVIDENCE FOR THE EXISTENCE OF COSMIC-RAY ANTI-PROTONS

被引：206

作者：

GOLDEN, RL ^{[1
]}

HORAN, S ^{[1
]}

MAUGER, BG ^{[1
]}

BADHWAR, GD ^{[1
]}

LACY, JL ^{[1
]}

STEPHENS, SA ^{[1
]}

DANIEL, RR ^{[1
]}

ZIPSE, JE ^{[1
]}

机构：

[1] NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.43.1196

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A search for cosmic-ray antiprotons was recently performed with use of a balloon-borne superconducting-magnet spectrometer. A total of 46 antiproton candidates were observed in the rigidity interval from 5.6 to 12.5 GV/c. Of these events 18.3 are expected to be atmospheric and instrumentation background. The p»p ratio is found to be (5.21.5) ×10-4. This ratio is consistent with secondary production of antiprotons in the interstellar medium. © 1979 The American Physical Society.

引用

页码：1196 / 1199

页数：4

共 6 条

[1] COSMIC-RAY ANTIPROTON FLUX - UPPER LIMIT NEAR THAT PREDICTED FOR SECONDARY PRODUCTION [J].