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Clues for the existence of two K-1(1270) resonances

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dc.contributor.author	Geng, Li Sheng
dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Roca Zamora, Luis
dc.contributor.author	Oller Berber, José Antonio
dc.date.accessioned	2015-09-07T12:21:09Z
dc.date.available	2015-09-07T12:21:09Z
dc.date.issued	2007
dc.identifier.citation	Geng, Li Sheng Oset Báguena, Eulogio Roca Zamora, Luis Oller Berber, José Antonio 2007 Clues for the existence of two K-1(1270) resonances Physical Review D 75 1 014017
dc.identifier.uri	http://hdl.handle.net/10550/46917
dc.description.abstract	The axial-vector meson K1(1270) was studied within the chiral unitary approach, where it was shown that it has a two-pole structure. We reanalyze the high-statistics WA3 experiment K-p-->K-pi+pi-p at 63 GeV, which established the existence of both K1(1270) and K1(1400), and we show that it clearly favors our two-pole interpretation. We also reanalyze the traditional K-matrix interpretation of the WA3 data and find that the good fit of the data obtained there comes from large cancellations of terms of unclear physical interpretation.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2007, vol. 75, num. 1, p. 014017
dc.subject	Física
dc.title	Clues for the existence of two K-1(1270) resonances
dc.type	journal article	es_ES
dc.date.updated	2015-09-07T12:21:09Z
dc.identifier.doi	10.1103/PhysRevD.75.014017
dc.identifier.idgrec	043124
dc.rights.accessRights	open access	es_ES