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The low lying scalar resonances in the D0 decays into K0s and f0(500), f0(980), a0(980)

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The low lying scalar resonances in the D0 decays into K0s and f0(500), f0(980), a0(980)

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dc.contributor.author Xie, J. J.
dc.contributor.author Dai, L.R.
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2016-11-16T08:20:11Z
dc.date.available 2016-11-16T08:20:11Z
dc.date.issued 2015
dc.identifier.citation Xie, J. J. Dai, L.R. Oset Báguena, Eulogio 2015 The low lying scalar resonances in the D0 decays into K0s and f0(500), f0(980), a0(980) Physics Letters B 742 363 369
dc.identifier.uri http://hdl.handle.net/10550/55941
dc.description.abstract The D0 decay into Ks0 and a scalar resonance, f0(500), f0(980), a0(980), are studied obtaining the scalar resonances from final state interaction of a pair of mesons produced in a first step in the D0 decay into Ks0 and the pair of pseudoscalar mesons. This weak decay is very appropriate for this kind of study because it allows to produce the three resonances in the same decay in a process that is Cabibbo-allowed, hence the rates obtained are large compared to those of B-0 decays into J/ψ and a scalar meson that have at least one Cabibbo-suppressed vertex. Concretely the a0(980) production is Cabibbo-allowed here, while it cannot be seen in the B-s0 decay into J/ψa0(980) and is doubly Cabibbo-suppressed in the B-0 decay into J/ψa0(980) and has not been identified there. The fact that the three resonances can be seen in the same reaction, because there is no isospin conservation in the weak decays, offers a unique opportunity to test the ideas of the chiral unitary approach where these resonances are produced from the interaction of pairs of pseudoscalar mesons.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2015, vol. 742, p. 363-369
dc.subject Física
dc.title The low lying scalar resonances in the D0 decays into K0s and f0(500), f0(980), a0(980)
dc.type journal article es_ES
dc.date.updated 2016-11-16T08:20:11Z
dc.identifier.doi 10.1016/j.physletb.2015.02.006
dc.identifier.idgrec 102053
dc.rights.accessRights open access es_ES

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