Exotic Hadrons and AtomsNo Access

³He(K^-, n) REACTION SPECTRUM NEAR THE DECAY THRESHOLD AND THE DEEPLY-BOUND K^-pp STATE

TAKAHISA KOIKE

Advanced Meson Science Laboratory, RIKEN Nishina Center, Wako-shi, Saitama 351-0198, Japan

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and

TORU HARADA

Research Center for Physics and Mathematics, Osaka Electro-Communication University, Neyagawa, Osaka, 572-8530, Japan

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https://doi.org/10.1142/S0217732309000280Cited by:1 (Source: Crossref)

Abstract

The formation of a deeply-bound K^-pp state by the ³He(in-flight K^-, n) reaction is investigated theoretically in a distorted-wave impulse approximation using the Green's function method. The expected inclusive and semi-exclusive spectra at p_K^- = 1.0 GeV/c and θ_n = 0° are calculated for the forthcoming J-PARC E15 experiment. We discuss these spectra with some K^--"pp" optical potentials, taking into account the energy-dependence of the imaginary part of the potentials by a phase space suppression factor.

Keywords:

PACS: 25.80.Nv, 13.75.Jz, 36.10.Gv, 21.45.+v

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