A Quark-Meson Model for Heavy Mesons: Semi-Leptonic Decays
| dc.creator | Deandrea, Aldo | |
| dc.date | 1999-05-15 | |
| dc.date.accessioned | 2026-07-07T04:07:05Z | |
| dc.date.available | 2026-07-07T04:07:05Z | |
| dc.description | I consider a model for heavy meson decays based on an effective quark-meson Lagrangian. The model is constrained by the known symmetries of QCD in the m_Q -> infinity limit for the heavy quarks, and chiral symmetry in the light quark sector. Using a limited number of free parameters it is possible to compute several phenomenological quantities, e.g. the leptonic B and B** decay constants; the Isgur-Wise form factors: xi, tau(3/2), tau (1/2), describing the semi-leptonic decays B -> D(*) l nu, B -> D** l nu; the form factors for heavy to light decays B -> rho l nu, B -> a_1 l nu. I show that the semileptonic heavy-to-light form factors calculated in the model fulfill the general relations that hold in QCD in the large energy limit for the final hadron. | |
| dc.description | Contribution to the Proceedings of the XXXIVth Rencontres de Moriond, QCD and High Energy Hadronic Interactions, Les Arcs 1800, France, March 20-27, 1999 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9905355 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9905355 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49020 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A Quark-Meson Model for Heavy Mesons: Semi-Leptonic Decays | |
| dc.type | text |