PRODUCTION OF K MESONS IN 3-BODY STATES IN PROTON-PROTON INTERACTIONS AT 6 BEV/C

被引：27

作者：

CHINOWSKY, W

KINSEY, RR

KLEIN, SL

MANDELKERN, M

SCHULTZ, J

MARTIN, F

PERL, ML

TAN, TH

机构：

[1] Lawrence Radiation Laboratory, University of California, Berkeley, CA

[2] Stanford Linear Accelerator Center, Stanford University, Stanford, CA

[3] University of California, Irvine, CA

来源：

PHYSICAL REVIEW | 1968年 / 165卷 / 05期

关键词：

D O I：

10.1103/PhysRev.165.1466

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Analysis of 9700 events, containing at least one observed neutral or charged decay, produced by 6-BeVc protons in the LRL 72-in. liquid-hydrogen bubble chamber has yielded 1746 examples of the reaction proton+proton→hyperon+K meson+nucleon. Production cross sections for these three-body reactions are as follows: σ(ΛK+p)=54-5+3μb, σ(0K+p)=17-2+4μb, σ(I+K0p)=26±4μb, σ(I+K+n)=57±7μb. Strong N* production is observed in all channels. In particular, one or more T=12 resonant states with mass near 1700 MeVc2, decaying into ΛK+, and a T=32 resonance with mass 1920 MeVc2, decaying into I+K+, are produced. In all cases the data are consistent with a production process dominated by a single-pion-exchange mechanism. No evidence is found for a dibaryon state in either the Λ-proton or -nucleon system. © 1968 The American Physical Society.

引用

页码：1466 / +

页数：1

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