The phenomenology of the so-called X, Y and Z hadronic resonances is hard to reconcile with standard charmonium or bottomonium interpretations. It has been suggested that some of these new hadrons can possibly be described as tightly bound tetraquark states and/or as loosely bound two-meson molecules. In the present paper we focus on the hypothetical existence of flavored, doubly charmed tetraquarks. Such states might also carry double electric charge, and in this case, if discovered, they could univocally be interpreted in terms of compact tetraquarks. Flavored tetraquarks are also amenable to lattice studies, as their interpolating operators do not overlap with ordinary meson ones. We show that doubly charmed tetraquarks could significantly be produced at the LHC from Bc or Ξbc heavy baryons.

Esposito, A., Papinutto, M., Pilloni, A., Polosa, A., Tantalo, N. (2013). Doubly charmed tetraquarks in B_{c} and Ξ_{bc} decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5) [10.1103/PhysRevD.88.054029].

Doubly charmed tetraquarks in B_{c} and Ξ_{bc} decays

TANTALO, NAZZARIO
2013-01-01

Abstract

The phenomenology of the so-called X, Y and Z hadronic resonances is hard to reconcile with standard charmonium or bottomonium interpretations. It has been suggested that some of these new hadrons can possibly be described as tightly bound tetraquark states and/or as loosely bound two-meson molecules. In the present paper we focus on the hypothetical existence of flavored, doubly charmed tetraquarks. Such states might also carry double electric charge, and in this case, if discovered, they could univocally be interpreted in terms of compact tetraquarks. Flavored tetraquarks are also amenable to lattice studies, as their interpolating operators do not overlap with ordinary meson ones. We show that doubly charmed tetraquarks could significantly be produced at the LHC from Bc or Ξbc heavy baryons.
2013
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI
English
Con Impact Factor ISI
Esposito, A., Papinutto, M., Pilloni, A., Polosa, A., Tantalo, N. (2013). Doubly charmed tetraquarks in B_{c} and Ξ_{bc} decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5) [10.1103/PhysRevD.88.054029].
Esposito, A; Papinutto, M; Pilloni, A; Polosa, A; Tantalo, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/102659
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