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D-0-(D)over-bar(0) mixing in the standard model and beyond from N-f=2 twisted mass QCD

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D-0-(D)over-bar(0) mixing in the standard model and beyond from N-f=2 twisted mass QCD

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dc.contributor.author	Carrasco Vela, Nuria
dc.contributor.author	Ciuchini, M.
dc.contributor.author	Dimopoulos, P.
dc.contributor.author	Frezzotti, R.
dc.contributor.author	Giménez Gómez, Vicente
dc.contributor.author	Lubicz, V.
dc.contributor.author	Rossi, G.C.
dc.contributor.author	Sanfilippo, F.
dc.contributor.author	Silvestrini, L.
dc.contributor.author	Simula, S.
dc.contributor.author	Tarantino, C.
dc.date.accessioned	2014-09-25T11:10:06Z
dc.date.available	2014-09-25T11:10:06Z
dc.date.issued	2014
dc.identifier.citation	Carrasco Vela, Nuria Ciuchini, M. Dimopoulos, P. Frezzotti, R. Giménez Gómez, Vicente Lubicz, V. Rossi, G.C. Sanfilippo, F. Silvestrini, L. Simula, S. Tarantino, C. 2014 D-0-(D)over-bar(0) mixing in the standard model and beyond from N-f=2 twisted mass QCD Physical Review D 90 1 014502-1 014502-9
dc.identifier.uri	http://hdl.handle.net/10550/38967
dc.description.abstract	We present the first unquenched lattice QCD results for the bag parameters controlling the short distance contribution to D meson oscillations in the standard model and beyond. We have used the gauge configurations produced by the European Twisted Mass collaboration with N-f = 2 dynamical quarks, at four lattice spacings and light meson masses in the range 280-500 MeV. Renormalization is carried out nonperturbatively with the regularization-independent momentum subtraction method. The bag-parameter results have been used to constrain new physics effects in D-0 ¿ (D) over bar (0) mixing, to put a lower bound to the generic new physics scale and to constrain off-diagonal squark mass terms for TeV-scale supersymmetry.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 90, num. 1, p. 014502-1-014502-9
dc.subject	Física
dc.title	D-0-(D)over-bar(0) mixing in the standard model and beyond from N-f=2 twisted mass QCD
dc.type	journal article	es_ES
dc.date.updated	2014-09-25T11:10:07Z
dc.identifier.doi	10.1103/PhysRevD.90.014502
dc.identifier.idgrec	099206
dc.rights.accessRights	open access	es_ES