The (K-, p) reaction on nuclei with in-flight kaons

被引：3
|
作者：
Ramos, A. [1 ,2 ]
Magas, V. K. [1 ,2 ]
Yamagata-Sekihara, J. [3 ,4 ,5 ]
Hirenzaki, S. [6 ]
Oset, E. [4 ,5 ]
机构：
[1] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain
[2] Univ Barcelona, Inst Ciencies Cosmos, E-08028 Barcelona, Spain
[3] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
[4] Univ Valencia, CSIC, Ctr Mixto, Inst Invest Paterna,Dep Fis Teor, Valencia 46071, Spain
[5] Univ Valencia, CSIC, Ctr Mixto, Inst Invest Paterna,IFIC, Valencia 46071, Spain
[6] Nara Womens Univ, Dept Phys, Nara 6308506, Japan
来源：
NUCLEAR PHYSICS A | 2010年 / 835卷 / 1-4期
关键词：
(K-; p); reaction; antikaon optical potential; deeply bound antikaon states; ATOMS; SYSTEMS; PAIRS;
D O I：
10.1016/j.nuclphysa.2010.01.224
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：
We perform a theoretical study of the spectrum of protons with kinetic energies of around 600 MeV, emitted following the interaction of 1 GeV/c kaons with nuclei. A recent experimental analysis of this (K-, p) reaction on C-12, based on the dominant quasielastic process, has suggested a deeply attractive kaon nucleus potential. Our Monte Carlo simulation considers, in addition, the one-and two-nucleon K- absorption processes producing hyperons that decay into pi N pairs. We find that this kaon in-flight reaction is not well suited to determine the kaon optical potential due, essentially, to the limited sensitivity of the cross section to its strength, and also to unavoidable uncertainties from the coincidence requirement applied in the experiment. A shallow kaon nucleus optical potential obtained in chiral models is perfectly compatible with the observed spectrum.
引用
收藏
页码：382 / 385
页数：4
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