Semiclassical Distorted Wave Model Analysis of the $(π^-,K^+)$ $Σ$ Formation Inclusive Spectrum

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dc.creatorKohno, M.
dc.creatorFujiwara, Y.
dc.creatorWatanabe, Y.
dc.creatorOgata, K.
dc.creatorKawai, M.
dc.date2006-11-22
dc.date.accessioned2026-07-07T11:03:24Z
dc.date.available2026-07-07T11:03:24Z
dc.description$(π^-,K^+)$ hyperon production inclusive spectra with $p_π=1.2$ GeV/c measured at KEK on $^{12}$C and $^{28}$Si are analyzed by the semiclassical distorted wave model. Single-particle wave functions of the target nucleus are treated using Wigner transformation. This method is able to account for the energy and angular dependences of the elementary process in nuclear medium without introducing the factorization approximation frequently employed. Calculations of the $(π^+,K^+)$ $Λ$ formation process, for which there is no free parameter since the $Λ$ s.p. potential is known, demonstrate that the present model is useful to describe inclusive spectra. It is shown that in order to account for the experimental data of the $Σ^-$ formation spectra a repulsive $Σ$-nucleus potential is necessary whose magnitude is not so strong as around 100 MeV previously suggested.
dc.description12 pages, 10 figures, accepted in Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/0611080
dc.identifierhttp://arxiv.org/abs/nucl-th/0611080
dc.identifierPhys.Rev.C74:064613,2006
dc.identifierdoi:10.1103/PhysRevC.74.064613
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188582
dc.subjectNuclear Theory
dc.titleSemiclassical Distorted Wave Model Analysis of the $(π^-,K^+)$ $Σ$ Formation Inclusive Spectrum
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