| Autor: |
Liu Yuzhi, Bailey Jon A., Bazavov A., Bernard C., Bouchard C. M., DeTar C., Du Daping, El-Khadra A. X., Freeland E. D., Gámiz E., Gelzer Z., Gottlieb Steven, Heller U. M., Kronfeld A. S., Laiho J., Mackenzie P. B., Meurice Y., Neil E. T., Simone J. N., Sugar R., Toussaint D., Van de Water R. S., Zhou Ran |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 175, p 13008 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/201817513008 |
| Popis: |
Using the MILC 2+1 flavor asqtad quark action ensembles, we are calculating the form factors f0 and f+ for the semileptonic Bs → Kℓv decay. A total of six ensembles with lattice spacing from ≈ 0.12 to 0.06 fm are being used. At the coarsest and finest lattice spacings, the light quark mass m’l is one-tenth the strange quark mass m’s. At the intermediate lattice spacing, the ratio m’l/m’s ranges from 0.05 to 0.2. The valence b quark is treated using the Sheikholeslami-Wohlert Wilson-clover action with the Fermilab interpretation. The other valence quarks use the asqtad action. When combined with (future) measurements from the LHCb and Belle II experiments, these calculations will provide an alternate determination of the CKM matrix element |Vub|. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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