The effect of z^prime boson on same-sign dimuon charge asymmetry in $b_q^0-bar{b}_q^0$ system

Abstract

The recent observation of the same-sign dimuon charge asymmetry in the B system by the D0 collaboration has 3.9 sigma deviation from the standard model prediction. However, the recent LHCb data on B-s neutral-meson mixing do not accommodate the D0 collaboration result. In this paper, considering the effect of Z'-mediated flavour-changing neutral currents in the $B_q^0-bar{B}_q^0$ (q = d, s) mixing, the same-sign dimuon charge asymmetry is calculated. We find the same-sign dimuon charge asymmetry is enhanced from its SM prediction and provides signals for new physics beyond the SM

15 papges

References in corpus (11)

• First evidence for the decay Bs -> mu+ mu-
• Anatomy of New Physics in B-Bbar mixing
• Less space for a new family of fermions
• Constraints on flavor-changing Z' models by B_s mixing, Z' production, and B_s -> μ^+ μ^-
• Search for Time-Dependent CPT Violation in Hadronic and Semileptonic B Decays
• The D0 same-charge dimuon asymmetry and possibile new CP violation sources in the $B_s-{\bar{B}}_s$ system
• The like-sign dimuon charge asymmetry in SUSY models
• Addendum to: Implications of the measurements of B_s-B_s bar mixing on SUSY models
• Bounding the $Z^{\prime }tc$ coupling from $D^0-\overline{D^0}$ mixing and single top production at the ILC
• $B_s^0-{\bar{B}}_s^0$ mixing and $b\to s$ transitions in isosinglet down quark model
• Effect of both Z and Z^prime - mediated flavor-changing neutral currents on $B_s$ decays into $ta{u}^{+}ta{u}^{-}$

Cited by in corpus (3)

• Measurement of the semileptonic $CP$ asymmetry in $B^0-\overline{B}{}^0$ mixing
• Flavor violation in chromo- and electromagnetic dipole moments induced by $Z^{\prime }$ gauge bosons and a brief revisit of the Standard Model
• Study of $B_s^0\to l^{+}{l}^{-}\gamma$ decays in the nonuniversal Z' model