NAGIOS: RODERIC FUNCIONANDO

NNLO unquenched calculation of the b quark mass

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

NNLO unquenched calculation of the b quark mass

Mostra el registre parcial de l'element

dc.contributor.author Giménez Gómez, Vicente
dc.contributor.author Giusti, L.
dc.contributor.author Martinelli, Guido
dc.contributor.author Rapuano, F.
dc.date.accessioned 2014-09-26T10:42:08Z
dc.date.available 2014-09-26T10:42:08Z
dc.date.issued 2000
dc.identifier.citation Giménez Gómez, Vicente 2000 NNLO unquenched calculation of the b quark mass Journal of High Energy Physics 03 018 1 21
dc.identifier.uri http://hdl.handle.net/10550/39000
dc.description.abstract By combining the first unquenched lattice computation of the B-meson binding energy and the two-loop contribution to the lattice HQET residual mass, we determine the <(MS)over bar> b-quark mass, (m) over bar(b)((m) over bar(b)). The inclusion of the two-loop corrections is essential to extract (m) over bar(b)((m) over bar(b)) with a precision of O(Lambda(QCD)(2)/m(b)), which is the uncertainty due to the renormalon singularities in the perturbative series of the residual mass. Our best estimate is (m) over bar(b)((m) over bar(b)) = (4.26 +/- 0.09) GeV, where we have combined the different errors in quadrature. A detailed discussion of the systematic errors contributing to the final number is presented. Our results have been obtained on a sample of 60 lattices of size 24(3) x 40 at beta = 5.6, using the Wilson action for light quarks and the lattice HQET for the b quark, at two values of the sea quark masses. The quark propagators have been computed using the unquenched links generated by the T chi L collaboration.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2000, vol. 03, num. 018, p. 1-21
dc.subject Partícules (Física nuclear)
dc.title NNLO unquenched calculation of the b quark mass
dc.type journal article es_ES
dc.date.updated 2014-09-26T10:42:08Z
dc.identifier.doi 10.1088/1126-6708/2000/03/018
dc.identifier.idgrec 041503
dc.rights.accessRights open access es_ES

Visualització       (242.0Kb)

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre parcial de l'element

Cerca a RODERIC

Cerca avançada

Visualitza

Estadístiques