Enhanced production of ΛΛ pairs near threshold in the (K-,K+) reaction on 12C

被引：0
|
作者：
Ahn, JK
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 606, Japan
[2] Kyoto Univ Educ, Kyoto 612, Japan
[3] Kyoto Sangyo Univ, Kyoto 606, Japan
[4] Kobe Univ, Fac Human Dev, Nada Ku, Kobe, Hyogo 657, Japan
[5] Univ Tokyo, Inst Nucl Study, Tokyo 188, Japan
[6] KEK, Natl Lab High Energy Phys, Tsukuba, Ibaraki 305, Japan
[7] Osaka City Univ, Dept Phys, Osaka 558, Japan
[8] Natl Inst Fus Sci, Nagoya, Aichi 46401, Japan
[9] Korea Univ, Dept Phys, Seoul 136701, South Korea
[10] Yonsei Univ, Dept Phys, Seoul 120749, South Korea
来源：
NUCLEAR PHYSICS A | 1998年 / 639卷 / 1-2期
关键词：
D O I：
暂无
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Enhanced production of Lambda Lambda pairs, above the prediction of a two-step process model, is observed near threshold (around the masses of 2.23 - 2.26 GeV/c(2)) in the C-12(K-,K+) reaction at p(K-) = 1.66 GeV/c using a scintillating fiber target. The differential cross section for the Lambda Lambda production averaged over 2.3 degrees less than or equal to theta(K+) less than or equal to 14.7 degrees in the momentum region 0.95 less than or equal to p(K+) less than or equal to 1.3 GeV/c was found to be 7.6 +/- 1.3 mu b/sr, and that for the enhancement approximately 3 mu b/sr.
引用
收藏
页码：379C / 384C
页数：6
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