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Constraining models with vector-like fermions from FCNC in K and B physics

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Constraining models with vector-like fermions from FCNC in K and B physics

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dc.contributor.author Barenboim Szuchman, Gabriela Alejandra
dc.contributor.author Botella Olcina, Francisco J.
dc.contributor.author Vives García, Óscar
dc.date.accessioned 2014-11-06T09:34:17Z
dc.date.available 2014-11-06T09:34:17Z
dc.date.issued 2001
dc.identifier.citation Barenboim Szuchman, Gabriela Alejandra Botella Olcina, Francisco J. Vives García, Óscar 2001 Constraining models with vector-like fermions from FCNC in K and B physics Nuclear Physics B 613 1-2 285 305
dc.identifier.uri http://hdl.handle.net/10550/39624
dc.description.abstract In this work we update the constraints on tree level FCNC couplings in the framework of a theory with n isosinglet vector-like down quarks. In this context, we emphasize the sensitivity of the B J/psi K-S CP asymmetry to the presence of new vector-like down quarks. This CP asymmetry, together with the rare decays B --> X(s,d)l (l) over bar and K --> pi nu<(<nu>)over bar> are the best options to further constrain the FCNC tree level couplings or even to point out, in the near future, the possible presence of vector-like quarks in the low energy spectrum, as suggested by GUT theories or models of large extra dimensions at the TeV scale.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 2001, vol. 613, num. 1-2, p. 285-305
dc.subject Física
dc.title Constraining models with vector-like fermions from FCNC in K and B physics
dc.type journal article es_ES
dc.date.updated 2014-11-06T09:34:18Z
dc.identifier.doi 10.1016/S0550-3213(01)00390-X
dc.identifier.idgrec 068703
dc.rights.accessRights open access es_ES

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