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Baryon states with open charm in the extended local hidden gauge approach

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Baryon states with open charm in the extended local hidden gauge approach

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dc.contributor.author Liang, W. H.
dc.contributor.author Uchino, Toshitaka
dc.contributor.author Xiao, Chu Wen
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2016-11-16T10:07:33Z
dc.date.available 2016-11-16T10:07:33Z
dc.date.issued 2015
dc.identifier.citation Liang, W. H. Uchino, Toshitaka Xiao, Chu Wen Oset Báguena, Eulogio 2015 Baryon states with open charm in the extended local hidden gauge approach European Physical Journal A 51 2 16-1 16-14
dc.identifier.uri http://hdl.handle.net/10550/55959
dc.description.abstract In this paper we examine the interaction of DN and D* N states, together with their coupled channels, by using an extension of the local hidden gauge formalism from the light meson sector, which is based on heavy quark spin symmetry. The scheme is based on the use of the impulse approximation at the quark level, with the heavy quarks acting as spectators, which occurs for the dominant terms where there is the exchange of a light meson. The pion exchange and the Weinberg-Tomozawa interactions are generalized and with this dynamics we look for states generated from the interaction, with a unitary coupled channels approach that mixes the pseudoscalar-baryon and vector-baryon states. We find two states with nearly zero width, which are associated to the I > (c) (2595) and I > (c) (2625). The lower state, with J (P) = 1/2(-), couples to DN and D* N, and the second one, with J (P) = 3/2(-), to D* N. In addition to these two I > (c) states, we find four more states with I = 0, one of them nearly degenerate in two states of J (P) = 1/2, 3/2. Furthermore we find three states in I = 1, two of them degenerate in J = 1/2, 3/2.
dc.language.iso eng
dc.relation.ispartof European Physical Journal A, 2015, vol. 51, num. 2, p. 16-1-16-14
dc.subject Física
dc.title Baryon states with open charm in the extended local hidden gauge approach
dc.type journal article es_ES
dc.date.updated 2016-11-16T10:07:33Z
dc.identifier.doi 10.1140/epja/i2015-15016-1
dc.identifier.idgrec 102055
dc.rights.accessRights open access es_ES

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