The $B_c$ Meson Lifetime
| dc.creator | Beneke, M. | |
| dc.creator | Buchalla, G. | |
| dc.date | 1996-01-12 | |
| dc.date.accessioned | 2026-07-07T12:50:01Z | |
| dc.date.available | 2026-07-07T12:50:01Z | |
| dc.description | We investigate the total inclusive decay rate of the (ground state) $B_c$ meson within the framework of an operator product expansion in inverse powers of the heavy quark masses and subsequent matching onto nonrelativistic QCD. The expansion is organized as a series in the strong coupling and in powers of the heavy quark velocities in the $B_c$, reflecting the nonrelativistic nature of a heavy-heavy bound state. In this aspect the character of the expansion differs from the more familiar case of heavy-light mesons. The framework incorporates systematically corrections to the leading $b$- and $c$-quark decays due to binding effects, as well as contributions from weak annihilation and Pauli interference. Based on this approach we find for the $B_c$ meson lifetime $τ_{B_c}=(0.4 - 0.7)\,$ps, the dominant mechanism being the decay of the charm constituent. | |
| dc.description | 18 pages, revtex, 2 figures as uudecoded file | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9601249 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9601249 | |
| dc.identifier | Phys.Rev.D53:4991-5000,1996 | |
| dc.identifier | doi:10.1103/PhysRevD.53.4991 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/222568 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The $B_c$ Meson Lifetime | |
| dc.type | text |