B_s^0 - \bar{B}_s^0 Mixing in Leptophobic Z^\prime Model

Abstract

Leptophobic Z^\prime gauge boson appears naturally in many grand unified theories, such as flipped SU(5) or string-inspired E_6 models. This elusive particle easily escapes the direct/indirect detections because it does not couple to charged leptons. However, it can generate flavor changing neutral current at tree level. In this letter, we show that the recently measured mass difference, Δm_s, in the B_s^0 -\bar{B}_s^0 system improves the previous bound of flavor changing effective coupling by about one order of magnitude, i.e irrespective of its phase, |U_{sb}^{Z^\prime}| \leq 0.036 for M_{Z^\prime} = 700 GeV, and |U_{sb}^{Z^\prime}| \leq 0.051 for M_{Z^\prime} = 1 TeV.

13 pages, 8 figures, added one reference, Final version to be published in PLB

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Cited by in corpus (40)

• The Physics of Heavy Z' Gauge Bosons
• Theoretical update of Bs-Bs-bar mixing
• Anatomy of New Physics in B-Bbar mixing
• The Dark Z' Portal: Direct, Indirect and Collider Searches
• Unparticle physics effects in B_s mixing
• The Anatomy of Z' and Z with Flavour Changing Neutral Currents in the Flavour Precision Era
• Neutral Gauge Boson Contributions to the Dimuon Charge Asymmetry in B Decays
• Scalar Dark Matter with CERN-LEP data and $Z^{\prime }$ search at the LHC in an $U(1{)}^{\prime }$ Model
• Constraint of B_{d,s}-bar{B}_{d,s} mixing on warped extra-dimension model
• $B_s-\overline{B_s}$ mixing, B decays and R-parity violating supersymmetry
• CP violation and limits on New Physics including recent $B_s$ measurements
• $D-\bar{D}$ mixing constraints on FCNC with a non-universal $Z^{\prime }$
• The Prediction of Mass of Z'-Boson from $b_q^0-b_q^{0}bar$ Mixing
• B_s^0-\bar{B}_s^0 mixing and B -> πK decays in stringy leptophobic Z^\prime
• Constraints on $Z^{\prime }$ Boson within Minimal Flavor Violation
• Ansatz for small FCNC with a non-universal $Z^{\prime }$
• B(s)-B(s)bar Mixing in Supersymmetric Grand Unified Models
• Some phenomenological aspects of a new $U(1{)}^{\prime }$ model
• Neutrino and CP-even Higgs boson masses in a nonuniversal $\mathrm{U}(1{)}^{\prime }$ extension
• Implications of the measurements of B_s - B_s bar mixing on SUSY models
• Scalar coupling limits and diphoton Higgs decay from LHC in an $U(1{)}^{\prime }$ model with scalar dark matter
• Flavor changing Z' couplings at the LHC
• Semileptonic Lambda(b)-->Lambda neutrino antineutrino decay in the Leptophobic Z-prime model
• Search for Top Quark FCNC Couplings in Z' Models at the LHC and CLIC
• Correlation between lepton flavor violation and B_{(d,s)} - \bar{B}_{(d,s)} mixing in SUSY GUT
• Investigation of $B_{u,d}\to (\pi ,K)\pi$ decays within unparticle physics
• Z' boson mass reach and model discrimination at muon colliders
• B/s0 anti-B/s0 mixing in the MSSM with large tan beta
• $B_{s(d)}^0-{\bar{B}}_{s(d)}^0$ mixing and new physics effects in a top quark two-Higgs doublet model
• Tree FCNC and non-unitarity of CKM matrix
• A U(1) non-universal anomaly-free model with three Higgs doublets and one singlet scalar field
• The effect of z^prime boson on same-sign dimuon charge asymmetry in $b_q^0-bar{b}_q^0$ system
• A non-universal $U(1{)}_X$ gauge extension to the MSSM
• New constraints on R-parity violating couplings through the measurements of the $B_{s(d)}^0$-${\bar{B}}_{s(d)}^0$ and $K^0$-${\bar{K}}^0$ mixing
• From Peccei Quinn symmetry to mass hierarchy problem
• Leptophobic dark photon interpretation of the ${\eta }^{\left(\prime \right)}\to {\pi }^0\left(\eta \right)\gamma \gamma$ puzzle
• A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry
• Searching for New Physics in $D^0\to {\mu }^{+}{\mu }^{-},e^{+}{e}^{-},{\mu }^{\pm }{e}^{\mp }$ at BES and/or Super Charm-Tau Factory
• Prospects of searches for invisible $B$-meson decays at FCC-ee
• Electroweak Penguin and Leptophobic $Z^{\prime }$ model