B meson decays from moving-NRQCD on fine MILC lattices
| dc.creator | Davies, C. T. H. | |
| dc.creator | Lepage, G. P. | |
| dc.creator | Wong, Kit Yan | |
| dc.date | 2006-11-07 | |
| dc.date.accessioned | 2026-07-07T10:41:32Z | |
| dc.date.available | 2026-07-07T10:41:32Z | |
| dc.description | Lattice simulations of $B\toπlν$ decays are problematic in the low $q^{2}$ region when the pion has to have large momentum in the lattice frame for a $B$ meson at rest or moving slowly. The moving-NRQCD formalism provides a way around this by giving an accurate discretization of a $b$ quark moving at arbitrary velocity $v$, and therefore a $B$ meson moving at high momentum in the lattice frame. Here we show results from simulations of the moving-NRQCD action complete through $O(1/M)$ coupled to the asqtad action on a MILC fine ensemble. We show $B$, $B^{*}$ masses as a function of $v$ and demonstrate how to determine the meson kinetic mass and the renormalization of $v$ non-perturbatively. We will also discuss the perturbative renormalization of the moving-NRQCD action from high-$β$ Monte Carlo simulations. | |
| dc.description | Talk presented at Lattice06 (electroweak decays and mixing), Tucson, Arizona, July 2006 | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0611009 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0611009 | |
| dc.identifier | PoSLAT2006:099,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181647 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | B meson decays from moving-NRQCD on fine MILC lattices | |
| dc.type | text |