HIGH-ENERGY PHOTOPRODUCTION OF CHARGED PIONS AT BACKWARD ANGLES

被引：52

作者：

ANDERSON, RL

GUSTAVSON, D

JOHNSON, J

OVERMAN, I

RITSON, D

WIIK, BH

机构：

[1] Stanford Linear Accelerator Center, Stanford

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.23.721

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements on large-angle photoproduction of + mesons from hydrogen have been made at the Stanford Linear Accelerator Center for photon energies between 5 and 15.5 GeV and u values from +0.05 to -1.8 (GeV/c)2. The measured cross section decreased with energy approximately as k-3, showing no shrinkage in this range of u values. Furthermore, it had a smooth u dependence with no sign of a dip at u-0.15 (GeV/c)2 as would be expected from nucleon exchange. -++ production was measured at 5 GeV and shows a rapid decrease with increasing |u|. © 1969 The American Physical Society.

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页码：721 / +

页数：1

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