A Constituent Quark-Meson Model for Heavy Meson Decays
| dc.creator | Deandrea, A. | |
| dc.date | 1998-09-15 | |
| dc.date.accessioned | 2026-07-07T04:05:02Z | |
| dc.date.available | 2026-07-07T04:05:02Z | |
| dc.description | I describe a model for heavy meson decays based on an effective quark-meson lagrangian. I consider the heavy mesons S with spin and parity J^P=(1+,0+), H with J^P=(1-,0-) and T^mu with J^P=(2+,1+), i.e. S and P wave heavy-light mesons. The model is constrained by the known symmetries of QCD in the mQ -> infinity limit for the heavy quarks, and chiral symmetry in the light quark sector. Using a very limited number of free parameters it is possible to compute several phenomenological quantities, e.g. the leptonic B and B** decay constants; the three universal 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 strong and radiative D* decays; the weak semi-leptonic decays of B and D into light mesons: pi, rho, a1. An overall agreement with data, when available, is achieved. | |
| dc.description | 5 pages, 1 figure, uses ltwol2e.sty, to appear in the Proceedings of the 29th International Conference on High Energy Physics (Vancouver) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9809393 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9809393 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48270 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A Constituent Quark-Meson Model for Heavy Meson Decays | |
| dc.type | text |