A fourth generation, anomalous like-sign dimuon charge asymmetry and the LHC

Abstract

A fourth chiral generation, with $m_{t^{\prime }}$ in the range $\sim (300-500)$ GeV and a moderate value of the CP-violating phase can explain the anomalous like-sign dimuon charge asymmetry observed recently by the D0 collaboration. The required parameters are found to be consistent with constraints from other $B$ and $K$ decays. The presence of such quarks, apart from being detectable in the early stages of the LHC, would also have important consequences in the electroweak symmetry breaking sector.

18 pages, 9 figures, Figure 1 is modified, more discussions are added in section 2. new references added

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Cited by in corpus (6)

• Neutral Gauge Boson Contributions to the Dimuon Charge Asymmetry in B Decays
• Z-mediated charge and CP asymmetries and FCNCs in $B_{d,s}$ processes
• Reevaluating R-parity Violating Supersymmetry Effects in B_s^0-\bar{B}_s^0 Mixing
• An upper limit on CP violation in the $B_s^0-{\bar{B}}_s^0$ system
• Flavour Theory and the LHC Era
• Indian Contributions to LHC Theory