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Reanalysis of lattice QCD spectra leading to the Ds0*(2317) and Ds1*(2460)

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Reanalysis of lattice QCD spectra leading to the Ds0*(2317) and Ds1*(2460)

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dc.contributor.author Martínez Torres, Alberto
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Prelovsek, S.
dc.contributor.author Ramos Gómez, Àngels
dc.date.accessioned 2016-11-16T08:26:21Z
dc.date.available 2016-11-16T08:26:21Z
dc.date.issued 2015
dc.identifier.citation Martínez Torres, Alberto Oset Báguena, Eulogio Prelovsek, S. Ramos Gómez, Àngels 2015 Reanalysis of lattice QCD spectra leading to the Ds0*(2317) and Ds1*(2460) The Journal of high energy physics 05 5 153 - 1 153 - 22
dc.identifier.uri http://hdl.handle.net/10550/55942
dc.description.abstract We perform a reanalysis of the energy levels obtained in a recent lattice QCD simulation, from where the existence of bound states of KD and KD* are induced and identified with the narrow D-s0*(2317) and D-s1*(2460) resonances. The reanalysis is done in terms of an auxiliary potential, employing a single-channel basis KD(*()), and a two-channel basis KD(*()), eta D-s(()*()). By means of an extended Luscher method we determine poles of the continuum t-matrix, bound by about 40 MeV with respect to the KD and KD* thresholds, which we identify with the D-s0*(2317) and D-s1*(2460) resonances. Using a sum rule that reformulates Weinberg compositeness condition we can determine that the state D-s0*(2317) contains a KD component in an amount of about 70%, while the state D-s1*(2460) contains a similar amount of KD*. We argue that the present lattice simulation results do not still allow us to determine which are the missing channels in the bound state wave functions and we discuss the necessary information that can lead to answer this question.
dc.language.iso eng
dc.relation.ispartof The Journal of high energy physics, 2015, vol. 05, num. 5, p. 153 - 1-153 - 22
dc.subject Física
dc.title Reanalysis of lattice QCD spectra leading to the Ds0*(2317) and Ds1*(2460)
dc.type journal article es_ES
dc.date.updated 2016-11-16T08:26:22Z
dc.identifier.doi 10.1007/JHEP05(2015)153
dc.identifier.idgrec 106194
dc.rights.accessRights open access es_ES

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