Masses and decay constants of the B-system in Lattice QCD
| dc.creator | Alexandrou, C. | |
| dc.date | 1995-04-26 | |
| dc.date.accessioned | 2026-07-07T03:39:32Z | |
| dc.date.available | 2026-07-07T03:39:32Z | |
| dc.description | Heavy-light bound states are studied in Lattice QCD with emphasis on parameters of the B-system relevant to experiment. Results are obtained on lattices with lattice spacings from about 0.15 fm to 0.06 fm corresponding to $β=5.74, 6.0$ and 6.26, and covering sizes from about 0.7 fm to 2 fm. From our results at the infinite quark mass limit and from propagating heavy quarks with mass of about 1-2.5 GeV we extrapolate to the b-quark mass to obtain the decay constant of the B-meson as well as the mass of $Λ_b$ in the continuum. The necessary extrapolations introduce rather large errors and lead to the value $f_B=180(50)$ MeV. We compare with the results from other lattice groups as well as with predictions coming from sum rules. The phenomenological consequences of this value of $f_B$, together with new experimental constraints, are briefly discussed. | |
| dc.description | 16 pages, postscript. Invited talk at the Bogoliubov International Symposium, Dubna, 18-23 August 1994 | |
| dc.identifier | https://arxiv.org/abs/hep-lat/9504018 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/9504018 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/38966 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Masses and decay constants of the B-system in Lattice QCD | |
| dc.type | text |