Semileptonic $B\to D$ and $B\to D^*$ Decays from the Lattice
| dc.creator | Lellouch, Laurent | |
| dc.date | 1995-05-30 | |
| dc.date.accessioned | 2026-07-07T03:57:40Z | |
| dc.date.available | 2026-07-07T03:57:40Z | |
| dc.description | We obtain form factors relevant for semileptonic $B\to D$ and $B\to D^*$ decays from a quenched lattice QCD calculation. Our results enable us to test Heavy-Quark Symmetry, determine the Isgur-Wise function as well as obtain the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $V_{cb}$ from a measurement, by the CLEO collaboration, of the differential decay rate for semileptonic $B\to D^*$ decays. We find that the Isgur-Wise function has a slope of $-(0.9\er{4}{4})$ at zero recoil and that $|V_{cb}|K(1)=0.037\er{1}{1}\er{4}{2}\; (0.99/(1+\b_{A_1}(1)))$, where the first set of errors is due to experimental uncertainties and the second to our errors on $ρ^2$. Here $K(1)$ and $\b_{A_1}(1)$ denote respectively power and radiative corrections at zero recoil. | |
| dc.description | Talk given at the XXXth Rencontres de Moriond on "QCD and High Energy Hadronic Interactions", Les Arcs, France, March 1995; 4 pages; self-unpacking, uuencoded, compressed postscript file | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9505423 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9505423 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/45527 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Semileptonic $B\to D$ and $B\to D^*$ Decays from the Lattice | |
| dc.type | text |