The status of the unitary triangle beyond the standard model including the most recent results on Delta m(s) on dilepton asymmetries and on width differences is presented. Even allowing for general new physics loop contributions the unitarity triangle must be very close to the standard model result. With the new measurements from the Fermilab Tevatron, we obtain for the first time a significant constraint on new physics in the B-s sector. We present the allowed ranges of new physics contributions to Delta F=2 processes and of the time-dependent CP asymmetry in B-s -> J/psi phi decays.

Constraints on new physics from the quark mixing unitarity triangle / M., Bona; M., Ciuchini; E., Franco; V., Lubicz; Martinelli, Guido; F., Parodi; M., Pierini; P., Roudeau; C., Schiavi; L., Silvestrini; A., Stocchi; V., Vagnoni. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 97:15(2006), pp. 151803-151807. [10.1103/physrevlett.97.151803]

Constraints on new physics from the quark mixing unitarity triangle

MARTINELLI, Guido;
2006

Abstract

The status of the unitary triangle beyond the standard model including the most recent results on Delta m(s) on dilepton asymmetries and on width differences is presented. Even allowing for general new physics loop contributions the unitarity triangle must be very close to the standard model result. With the new measurements from the Fermilab Tevatron, we obtain for the first time a significant constraint on new physics in the B-s sector. We present the allowed ranges of new physics contributions to Delta F=2 processes and of the time-dependent CP asymmetry in B-s -> J/psi phi decays.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Constraints on new physics from the quark mixing unitarity triangle / M., Bona; M., Ciuchini; E., Franco; V., Lubicz; Martinelli, Guido; F., Parodi; M., Pierini; P., Roudeau; C., Schiavi; L., Silvestrini; A., Stocchi; V., Vagnoni. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 97:15(2006), pp. 151803-151807. [10.1103/physrevlett.97.151803]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/15409
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