Bottom Quark Mass from Upsilon Mesons: Charm Mass Effects
| dc.creator | Hoang, A. H. | |
| dc.date | 2000-08-10 | |
| dc.date.accessioned | 2026-07-07T03:42:16Z | |
| dc.date.available | 2026-07-07T03:42:16Z | |
| dc.description | The effects of the finite charm quark mass on bottom quark mass determinations from $Υ$ sum rules are examined in detail. The charm quark mass effects are calculated at next-to-next-to-leading order in the non-relativistic power counting for the $Υ$ sum rules and at order $α_s^3$ for the determination of the bottom MSbar mass. For the bottom 1S mass, which is extracted from the $Υ$ sum rules directly, we obtain $M_b^{1S}=4.69\pm 0.03$ GeV with negligible correlation to the value of the strong coupling. For the bottom MSbar mass we obtain $\bar M_b(\bar M_b) = 4.17\pm 0.05$ GeV taking $α_s^{(n_l=5)}(M_Z)=0.118\pm 0.003$ as an input. Compared with an analysis where all quarks lighter than the bottom are treated as massless, we find that the finite charm mass shifts the bottom 1S mass, $M_b^{1S}$, by about -20 MeV and the MSbar mass, $\bar M_b(\bar M_b)$, by -30 to -35 MeV. | |
| dc.description | 70 pages, latex, 21 postscript figures included | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0008102 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0008102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/39843 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Bottom Quark Mass from Upsilon Mesons: Charm Mass Effects | |
| dc.type | text |