Bottom quark mass and alpha_s from the Upsilon system
| dc.creator | Jamin, Matthias | |
| dc.creator | Pich, Antonio | |
| dc.date | 1997-02-06 | |
| dc.date.accessioned | 2026-07-07T10:33:28Z | |
| dc.date.available | 2026-07-07T10:33:28Z | |
| dc.description | The mass of the bottom quark and the strong coupling constant alpha_s are determined from QCD moment sum rules for the Upsilon system. Two analyses are performed using both the pole mass M_b as well as the mass m_b in the $\MSb$ scheme. In the pole-mass scheme large perturbative corrections resulting from coulombic contributions have to be resummed. In the $\MSb$ scheme this can be avoided by an appropriate choice for the renormalization scale. For the bottom quark mass we obtain M_b = 4.60 +- 0.02 GeV and m_b(m_b) = 4.13 +- 0.06 GeV. Our combined result from both determinations for the strong coupling is alpha_s(M_Z) = 0.119 +- 0.008. | |
| dc.description | 26 pages, LaTeX, 1 postscript figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9702276 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9702276 | |
| dc.identifier | Nucl.Phys.B507:334-352,1997 | |
| dc.identifier | doi:10.1016/S0550-3213(97)00558-0 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179118 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Bottom quark mass and alpha_s from the Upsilon system | |
| dc.type | text |