Measurements of the Unitarity Triangle angles at the B factories

by Marcella Bona (Conseil Europeen Recherche Nucl. (CERN))

Tuesday 27 May 2008, 16:30 → 17:30 Europe/Zurich

Main Auditorium ** (CERN)

With the advent of the asymmetric B factories, Belle and BaBar, the CP violation in the B sector has been firmly estabilished, the sin2β measurement being now a precision measurement at the % level. B factories have accumulated an impressive statistics and this gives enormous possibilities for exploring also the other angles of the Unitarity Triangle. A review of the current experimental status and perspectives on the measurements of the Unitarity Triangle angles will be given: we will start with the by-now benchmark extraction of the β value in charmonium final states, assessing possible theory contributions to the SM prediction. Then we will discuss the determination of the phase of the CKM matrix through the study of b →c and b →u transitions in (NP free) B decays to charmed mesons. Finally we will address the (NP sensitive) charmless b →d and b →s decays, focusing on the B →ππ measurements related to alpha angle. A final glance at the state of the art in the flavour sector of the SM (and beyond) will be given.

Joint PP/EP seminar - 2008 http://smaria.home.cern.ch/smaria/ppep/ppep.htm

Poster EPPPSeminar27June2008.pdf

Slides cern-seminar.pdf