The effect of the in-medium Θ^+ pentaquark on the kaon optical potential release_2fflxpzrbfdpfhcb7l33nsgq6m

by Laura Tolos, Daniel Cabrera, Angels Ramos, Artur Polls

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abstracts[] {'sha1': 'd4238a74357498c4f8bb177bda03a3be4dc0c0c5', 'content': 'The kaon nuclear optical potential is studied including the effect of the\nΘ^+ pentaquark. The one-nucleon contribution is obtained using an\nextension of the Jülich meson-exchange potential as bare kaon-nucleon\ninteraction. Significant differences between a fully self-consistent\ncalculation and the usually employed low-density Tρ approach are observed.\nThe influence of the one-nucleon absorption process, K N →Θ^+, on the\nkaon optical potential is negligible due to the small width of the pentaquark.\nIn contrast, the two-nucleon mechanism, K N N →Θ^+ N, estimated from\nthe coupling of the pentaquark to a two-meson cloud, provides the required\namount of additional kaon absorption to reconcile with data the systematically\nlow K^+-nucleus reaction cross sections found by the theoretical models.', 'mimetype': 'text/plain', 'lang': 'en'}
{'sha1': '5ce915ff0915819a8c75889e47b62df72d8265c4', 'content': 'The kaon nuclear optical potential is studied including the effect of the\n$\\Theta^+$ pentaquark. The one-nucleon contribution is obtained using an\nextension of the J\\"ulich meson-exchange potential as bare kaon-nucleon\ninteraction. Significant differences between a fully self-consistent\ncalculation and the usually employed low-density $T\\rho$ approach are observed.\nThe influence of the one-nucleon absorption process, $K N \\to \\Theta^+$, on the\nkaon optical potential is negligible due to the small width of the pentaquark.\nIn contrast, the two-nucleon mechanism, $K N N \\to \\Theta^+ N$, estimated from\nthe coupling of the pentaquark to a two-meson cloud, provides the required\namount of additional kaon absorption to reconcile with data the systematically\nlow $K^+$-nucleus reaction cross sections found by the theoretical models.', 'mimetype': 'application/x-latex', 'lang': 'en'}
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{'index': 1, 'creator_id': None, 'creator': None, 'raw_name': 'Daniel Cabrera', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
{'index': 2, 'creator_id': None, 'creator': None, 'raw_name': 'Angels Ramos', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
{'index': 3, 'creator_id': None, 'creator': None, 'raw_name': 'Artur Polls', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
ext_ids {'doi': None, 'wikidata_qid': None, 'isbn13': None, 'pmid': None, 'pmcid': None, 'core': None, 'arxiv': 'hep-ph/0503009v1', 'jstor': None, 'ark': None, 'mag': None, 'doaj': None, 'dblp': None, 'oai': None, 'hdl': None}
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language en
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release_date 2005-03-01
release_stage submitted
release_type article
release_year 2005
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title The effect of the in-medium Θ^+ pentaquark on the kaon optical potential
version v1
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work_id rrdnoxmj2fbkbdyq3xh4f5nvpy
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arxiv.base_id hep-ph/0503009
arxiv.categories ['hep-ph', 'nucl-th']
arxiv.comments 9 pages, 6 figures. Extended discussion on absorption and reaction cross sections. Accepted in Phys. Lett. B
arxiv.journal_ref Phys.Lett. B632 (2006) 219-225
superceded True