Low-energy scattering and photoproduction of η mesons on three-body nuclei

Abstract

The optical potential approach for low-energy scattering of η mesons on three-body nuclei is compared to an exact treatment of the η 3N system using four-body scattering theory with eparable interactions in s waves only. The higher-order terms including the interaction of the struck nucleon with the surrounding nuclear medium and virtual target excitations in between successive η scatterings are found to cause important corrections. Effects of final state interaction in η photoproduction on ³H and ³He are also studied and sizable contributions beyond the optical model approach are found.

Original language	English
Pages (from-to)	440021-4400213
Number of pages	3960193
Journal	Physical Review C - Nuclear Physics
Volume	68
Issue number	4
Publication status	Published - Oct 2003

ASJC Scopus subject areas

Physics and Astronomy(all)
Nuclear and High Energy Physics

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title = "Low-energy scattering and photoproduction of η mesons on three-body nuclei",

abstract = "The optical potential approach for low-energy scattering of η mesons on three-body nuclei is compared to an exact treatment of the η 3N system using four-body scattering theory with eparable interactions in s waves only. The higher-order terms including the interaction of the struck nucleon with the surrounding nuclear medium and virtual target excitations in between successive η scatterings are found to cause important corrections. Effects of final state interaction in η photoproduction on 3H and 3He are also studied and sizable contributions beyond the optical model approach are found.",

author = "A. Fix and H. Arenh{\"o}vel",

year = "2003",

month = oct,

language = "English",

volume = "68",

pages = "440021--4400213",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

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AU - Arenhövel, H.

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N2 - The optical potential approach for low-energy scattering of η mesons on three-body nuclei is compared to an exact treatment of the η 3N system using four-body scattering theory with eparable interactions in s waves only. The higher-order terms including the interaction of the struck nucleon with the surrounding nuclear medium and virtual target excitations in between successive η scatterings are found to cause important corrections. Effects of final state interaction in η photoproduction on 3H and 3He are also studied and sizable contributions beyond the optical model approach are found.

AB - The optical potential approach for low-energy scattering of η mesons on three-body nuclei is compared to an exact treatment of the η 3N system using four-body scattering theory with eparable interactions in s waves only. The higher-order terms including the interaction of the struck nucleon with the surrounding nuclear medium and virtual target excitations in between successive η scatterings are found to cause important corrections. Effects of final state interaction in η photoproduction on 3H and 3He are also studied and sizable contributions beyond the optical model approach are found.

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