Nonspectator Effects and B Meson Lifetimes
| dc.creator | Yang, Kwei-Chou | |
| dc.date | 1998-11-09 | |
| dc.date.accessioned | 2026-07-07T04:05:40Z | |
| dc.date.available | 2026-07-07T04:05:40Z | |
| dc.description | We review the B meson lifetime problems and nonspectator effects. The predictions of B meson lifetime ratios depend on four unknown hadronic parameters $B_1$, $B_2$, $ε_1$ and $ε_2$, where $B_1$ and $B_2$ parametrize the matrix elements of color singlet-singlet four-quark operators and $ε_1$ and $ε_2$ the matrix elements of color octet-octet operators. To understand contributions of the nonspectator effects to the B meson lifetime ratios, we derive the renormalization-group improved QCD sum rules for these parameters within the framework of heavy quark effective theory. | |
| dc.description | 12 pages, 2 figures, talk presented at the 11th Summer School and Symposium on Nuclear Physics (NuSS'98), "Effective Theories of Matter", Seoul National University, June 23--26, 1998 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9811274 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9811274 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48489 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Nonspectator Effects and B Meson Lifetimes | |
| dc.type | text |