B Decays, an Introductory Survey
| dc.creator | Yaouanc, A. Le | |
| dc.creator | Oliver, L | |
| dc.creator | Pène, O. | |
| dc.creator | Raynal, J. -C. | |
| dc.date | 1994-06-20 | |
| dc.date | 1994-06-21 | |
| dc.date.accessioned | 2026-07-07T08:59:59Z | |
| dc.date.available | 2026-07-07T08:59:59Z | |
| dc.description | To start the $b$-decay session we briefly introduce and comment some important theoretical tools which are currently used in $b$ physics. Heavy Quark Symmetry and its consequences for heavy to heavy and heavy to light semi-leptonic decays, as well as for leptonic decays, are briefly summarised. It is stressed that symmetry must be completed with dynamical calculations. A critical discussion of the nearest pole dominance (VMD) assumption is performed. Parton model and its higher twist corrections are discussed on the example of lifetimes. Finally non-leptonic decays are considered via the example of the exclusive calculation of $ΔΓ$ in the $B_s-\overline B_s$ system. The popular factorization assumption is discussed and seems to be rather good. | |
| dc.description | 9 pages, talk at the XXIXth Rencontre de Moriond, ``QCD and High Energy Hadronic Interactions'', march 1994, Méribel France | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9406341 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9406341 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147913 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | B Decays, an Introductory Survey | |
| dc.type | text |