Mesic Atoms and NucleiNo Access

FORMATION OF THE DEEPLY-BOUND K⁻pp STATE IN THE ³He(IN-FLIGHT K⁻, n) SPECTRUM

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/S0217732308029769Cited by:3 (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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