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Decay widths of the spin-2 partners of the X(3872)

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Decay widths of the spin-2 partners of the X(3872)

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dc.contributor.author	Albaladejo Serrano, Miguel
dc.contributor.author	Guo, Feng-Kun
dc.contributor.author	Hidalgo Duque, Carlos
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.contributor.author	Pavón Valderrama, Manuel
dc.date.accessioned	2016-11-16T12:27:29Z
dc.date.available	2016-11-16T12:27:29Z
dc.date.issued	2015
dc.identifier.citation	Albaladejo Serrano, Miguel Guo, Feng-Kun Hidalgo Duque, Carlos Nieves Pamplona, Juan Miguel Pavón Valderrama, Manuel 2015 Decay widths of the spin-2 partners of the X(3872) European Physical Journal C 75 11 547
dc.identifier.uri	http://hdl.handle.net/10550/55975
dc.description.abstract	We consider the X(3872) resonance as a JPC=1++ DD¯∗ hadronic molecule. According to heavy quark spin symmetry, there will exist a partner with quantum numbers 2++, X2, which would be a D∗D¯∗ loosely bound state. The X2 is expected to decay dominantly into DD¯, DD¯∗ and D¯D∗ in d-wave. In this work, we calculate the decay widths of the X2 resonance into the above channels, as well as those of its bottom partner, Xb2, the mass of which comes from assuming heavy flavor symmetry for the contact terms. We find partial widths of the X2 and Xb2 of the order of a few MeV. Finally, we also study the radiative X2→DD¯∗γ and Xb2→B¯B∗γ decays. These decay modes are more sensitive to the long-distance structure of the resonances and to the DD¯∗ or BB¯∗ final state interaction.
dc.language.iso	eng
dc.relation.ispartof	European Physical Journal C, 2015, vol. 75, num. 11, p. 547
dc.subject	Física
dc.title	Decay widths of the spin-2 partners of the X(3872)
dc.type	journal article	es_ES
dc.date.updated	2016-11-16T12:27:29Z
dc.identifier.doi	10.1140/epjc/s10052-015-3753-6
dc.identifier.idgrec	108240
dc.rights.accessRights	open access	es_ES