First Evidence of New Physics in b <--> s Transitions

周六, 05/24/2008 - 05:48 — kambrian

First Evidence of New Physics in b <--> s Transitions

Authors:
UTfit Collaboration:
M. Bona,
M. Ciuchini,
E. Franco,
V. Lubicz,
G. Martinelli,
F. Parodi,
M. Pierini,
P. Roudeau,
C. Schiavi,
L. Silvestrini,
V. Sordini,
A. Stocchi,
V. Vagnoni

(Submitted on 5 Mar 2008)

Abstract: We combine all the available experimental information on Bs mixing, including
the very recent tagged analyses of Bs to J/Psi phi by the CDF and D0
collaborations. We find that the phase of the Bs mixing amplitude deviates more
than 3 sigma from the Standard Model prediction. While no single measurement
has a 3 sigma significance yet, all the constraints show a remarkable agreement
with the combined result. This is a first evidence of physics beyond the
Standard Model. This result disfavours New Physics models with Minimal Flavour
Violation with the same significance.

arXiv:0803.0659v1 [hep-ph]

虽然是天书，似乎有些突破性的事情发生了。