Studies of γγ→p(p)over-bar production at Belle

被引：0
|
作者：
Kuo, CC [1 ]
机构：
[1] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2004年 / 126卷
关键词：
D O I：
10.1016/S0920-5632(03)02350-8
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The production of p (p) over bar pairs from two-photon collisions has been studied by 89 f b(-1) data collected at Belle. The cross sections and the angular differential cross sections for gammagamma --> p (p) over bar have been measured in the two-photon c.m. energy from 2 to 4 GeV. In comparison with previous measurements, the Belle preliminary results have achieved a great improvement in statistics. The theoretical predictions, including the pure quark and diquark models, are compared with the data at medium or higher energies.
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页码：313 / 318
页数：6
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