Recent Developments in the Theory of Heavy-Quark Decays
| dc.creator | Neubert, Matthias | |
| dc.date | 1992-07-29 | |
| dc.date.accessioned | 2026-07-07T03:55:39Z | |
| dc.date.available | 2026-07-07T03:55:39Z | |
| dc.description | I report on recent developments in the heavy-quark effective theory and its application to $B$ meson decays. The parameters of the effective theory, the spin-flavor symmetry limit, and the leading symmetry-breaking corrections to it are discussed. The results of a QCD sum rule analysis of the universal Isgur-Wise functions that appear at leading and subleading order in the $1/m_Q$ expansion are presented. I illustrate the phenomenological applications of this formalism by focusing on two specific examples: the determination of $V_{cb}$ from the endpoint spectrum in semileptonic decays, and the study of spin-symmetry violating effects in ratios of form factors. I also briefly comment on nonleptonic decays. | |
| dc.description | 6 pages, SLAC-PUB-5842 (1992) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9207270 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9207270 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44636 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Recent Developments in the Theory of Heavy-Quark Decays | |
| dc.type | text |