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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[11]   PROTON COMPTON SCATTERING MEASUREMENT FROM 450 TO 1350 MEV NEAR 90 DEGREES IN CENTER-OF-MASS SYSTEM [J].
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PHYSICAL REVIEW LETTERS, 1965, 15 (24) :938-+
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PHYSICAL REVIEW LETTERS, 1969, 23 (13) :725-+
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