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CP violation and limits on New Physics including recent B-s measurements

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CP violation and limits on New Physics including recent B-s measurements

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dc.contributor.author Botella Olcina, Francisco J.
dc.contributor.author Branco, Gustavo Castelo
dc.contributor.author Nebot Gómez, Miguel
dc.date.accessioned 2014-11-06T09:32:59Z
dc.date.available 2014-11-06T09:32:59Z
dc.date.issued 2007
dc.identifier.citation Botella Olcina, Francisco J. Branco, Gustavo Castelo Nebot Gómez, Miguel 2007 CP violation and limits on New Physics including recent B-s measurements Nuclear Physics B 768 1-2 1 20
dc.identifier.uri http://hdl.handle.net/10550/39623
dc.description.abstract We analyse present constraints on the SM parameter space and derive, in a model independent way, various bounds on New Physics contributions to B-d(0)-(B) over bar (0)(d) and B-s(0)-(B) over bar (0)(s) mixings. Our analyses include information on a large set of asymmetries, leading to the measurement of the CKM phases gamma and (beta) over bar, as well as recent data from D0 and CDF related to the B-s(0)-(B) over bar (0)(s) system such as the measurement of Delta MBs, A and Delta Gamma(CP)(S). We examine in detail several observables such as the asymmetries A(sl)(d), A, the width differences Delta Gamma(d) and Delta Gamma(CP)(S) and discuss the role they play in establishing the limits on New Physics. The present data clearly favour the SM, with the New Physics favoured region placed around the SM solution. A New Physics solution significantly different from the SM is still allowed, albeit quite disfavoured (2.6% probability). We analyse the presently available indirect knowledge on the phase (chi) over bar entering in B-s(0)-B-s(0) mixing and study the impact of a future measurement of (chi) over bar to be achieved at LHC, through the measurement of the time-dependent CP asymmetry in B-s -> J/Psi theta decays.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 2007, vol. 768, num. 1-2, p. 1-20
dc.subject Física
dc.title CP violation and limits on New Physics including recent B-s measurements
dc.type journal article es_ES
dc.date.updated 2014-11-06T09:32:59Z
dc.identifier.doi 10.1016/j.nuclphysb.2006.12.022
dc.identifier.idgrec 043131
dc.rights.accessRights open access es_ES

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