New Physics in B0(s) ---> J/psi phi: A General Analysis
Journal
JHEP
Journal Volume
04
Pages
031
Date Issued
2009-10
Author(s)
Datta, Alakabha
Duraisamy, Murugeswaran
London, David
Nagashima, Makiko
Szynkman, Alej
ro
Abstract
Recently, the CDF and D0 collaborations measured indirect CP violation in B0s→ J/uψoφf and found a hint of a signal. If taken at face value, this can be interpreted as a nonzero phase of B 0s -B 0 s mixing (βs), in disagreement with the standard model, which predicts that βs → 0. In this paper, we argue that this analysis may be incomplete. In particular, there can be new physics (NP) in the b → s̄c̄c decay. If so, the value of βs is different than for the case in which NP is assumed to be present only in the mixing. We have examined several models of NP and found that, indeed, there can be significant contributions to the decay. These effects are consistent with measurements in Bod → J/uπK* and B0 d → J/uπKS. Due to the NP in the decay, polarization-dependent indirect CP asymmetries and triple-product asymmetries are predicted in B0 s → Juπoφf. © SISSA 2010.
Type
journal article