1 research outputs found
CP violation and limits on New Physics including recent measurements
We analyse present constraints on the SM parameter space and derive, in a
model independent way, various bounds on New Physics contributions to
-- and -- mixings. Our analyses include
information on a large set of asymmetries, leading to the measurement of the
CKM phases and , as well as recent data from D0 and CDF
related to the -- system such as the measurement of , and . We examine in detail several
observables such as the asymmetries , , the width differences
and and discuss the r\^ole 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 entering in --
mixing and study the impact of a future measurement of to be
achieved at LHC, through the measurement of the time-dependent CP asymmetry in
decays.Comment: 29 pages, 31 figures; updated analyses and reference