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Bottom quark mass and alpha(s) from the Upsilon system

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dc.contributor.author	Jamin, Matthias
dc.contributor.author	Pich Zardoya, Antonio
dc.date.accessioned	2015-02-25T13:25:41Z
dc.date.available	2015-02-25T13:25:41Z
dc.date.issued	1997
dc.identifier.uri	http://hdl.handle.net/10550/42301
dc.description.abstract	The mass of the bottom quark and the strong coupling constant alpha(s) are determined from QCD moment sum rules for the T system. Two analyses are performed using both the pole mass M-b as well as the mass m(b) in the <(MS)over bar> scheme. In the pole-mass scheme large perturbative corrections resulting from Coulombic contributions have to be resummed. In the <(MS)over bar> 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+/-0.00 GeV. Our combined result from both determinations for the strong coupling is alpha(s)(M-Z) = 0.119+/-0.008.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics B, 1997, vol. 507, num. 1-2, p. 334-352
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	Jamin, Matthias Pich Zardoya, Antonio 1997 Bottom quark mass and alpha(s) from the Upsilon system Nuclear Physics B 507 1-2 334 352
dc.subject	Física
dc.title	Bottom quark mass and alpha(s) from the Upsilon system
dc.type	info:eu-repo/semantics/article
dc.date.updated	2015-02-25T13:25:41Z
dc.identifier.doi	http://dx.doi.org/10.1016/S0550-3213(97)00558-0
dc.identifier.idgrec	081671