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A Theoretical prediction of the B(s)-meson lifetime difference

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dc.contributor.author	Giménez Gómez, Vicente
dc.contributor.author	Becirevic, D.
dc.contributor.author	Meloni, Davide
dc.contributor.author	Retico, A.
dc.contributor.author	Lubicz, V.
dc.contributor.author	Martinelli, Guido
dc.date.accessioned	2014-09-26T10:36:16Z
dc.date.available	2014-09-26T10:36:16Z
dc.date.issued	2000
dc.identifier.citation	Giménez Gómez, Vicente 2000 A Theoretical prediction of the B(s)-meson lifetime difference European Physical Journal C 18 1 157 166
dc.identifier.uri	http://hdl.handle.net/10550/38997
dc.description.abstract	We present the results of a quenched lattice calculation of the operator matrix elements relevant for predicting the B-s width difference. Our main result is (Delta Gamma (Bs)/Gamma (Bs)) = (4.7 +/- 1.5 +/- 1.6) x 10(-2), obtained from tho ratio of matrix elements R(m(b)) = ((B) over bar (0)(s)\Qs\B-s(0)]/[(B) over bar (0)(s)\QL\B-s(0)) = -0.93(3)(-0.01)(+0.00) . R(m(b)) was evaluated from the two relevant B parameters B-S((MS) over bar)(m(b)) = 0.86(2)(-0.02)(+0.02) and B-Bs((MS) over bar)(m(b)) = 0.91(3)(-0.06)(+0.00), which we computed in our simulation.
dc.language.iso	eng
dc.relation.ispartof	European Physical Journal C, 2000, vol. 18, num. 1, p. 157-166
dc.subject	Partícules (Física nuclear)
dc.title	A Theoretical prediction of the B(s)-meson lifetime difference
dc.type	journal article	es_ES
dc.date.updated	2014-09-26T10:36:16Z
dc.identifier.doi	10.1007/s100520000502
dc.identifier.idgrec	041500
dc.rights.accessRights	open access	es_ES