Hints for a Low Bs --> mu+ mu- Rate and the Fourth Generation

Abstract

With full 2011 LHC data analyzed, there is no indication for deviation from Standard Model (SM) in CP violating phase for Bs --> J/psi phi, nor in the forward-backward asymmetry for B0 --> K*0 mu+ mu-. SM sensitivity, however, has been reached for Bs --> mu+ mu- rate, and there may be some hint for a suppression. We illustrate that, if a suppressed B(Bs --> mu+ mu-) bears out with 2012 data, it would imply a lower bound on the fourth generation quark mixing product |V_{t's}^*V_{t'b}|.

4 pages, 2 figures

References in corpus (7)

• The Decay B --> K l^+ l^- at Low Hadronic Recoil and Model-Independent Delta B = 1 Constraints
• Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar Mass Difference in Four Generation Standard Mode
• Search for B(s) and B to dimuon decays in pp collisions at 7 TeV
• Search for B_s --> mu+mu- and B_d --> mu+mu- Decays with CDF II
• Search for the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• Early LHC Phenomenology of Yukawa-bound Heavy Q\bar{Q} Mesons
• Measuring the Fourth Generation b --> s Quadrangle at the LHC

Cited by in corpus (2)

• Correlating $B_q^0\to {\mu }^{+}{\mu }^{-}$ and $K_L\to {\pi }^0\nu \bar{\nu }$ Decays with Four Generations
• Heavy QQ(bar) "Fireball" Annihilation to Multiple Vector Bosons