The $B_s$ width difference beyond the Standard Model

Abstract

The Standard Model predicts a large width difference in the $B_s$ system. New physics can contribute significantly to the {\it mass} difference. If this contribution is CP violating, this will always result in a reduction of the {\it width} difference. The analyses of measurements of the width difference using $B_s$ decays into CP eigenstates have to be modified in the presence of new physics. We discuss how the width difference and the new CP violating phase in $B_s$ mixing can be measured.

15 pages, revtex, no figures

References in corpus (7)

• Angular distributions and lifetime differences in $B_s\to J/\psi \varphi$ decays
• Supersymmetry without R-Parity and without Lepton Number
• Implications of TeV Flavor Physics for the ΔI =1/2 Rule and the B-meson Semileptonic Branching Ratio
• Bs-Bs.bar Mixing, CP Violation and Extraction of CKM Phases from Untagged Bs Data Samples
• Next-to-leading Order Radiative Corrections to the Decay $b\to ccs$
• Hadronization of $b\to c\bar{c}s$
• Naturally Small $x_s$?

Cited by in corpus (63)

• Theoretical update of Bs-Bs-bar mixing
• CP Asymmetries in B Decays with New Physics in Decay Amplitudes
• Implications of LHCb measurements and future prospects
• In Pursuit of New Physics with B_s Decays
• Next-to-Leading Order QCD Corrections to the Lifetime Difference of $B_s$ Mesons
• Implications of the measurement of the B^0_s-\bar B^0_s mass difference
• Constraints on new physics from the quark mixing unitarity triangle
• Lessons from CLEO and FOCUS Measurements of D0-anti-D0 Mixing Parameters
• CP Violation in the B System and Relations to $K\to \pi \nu \bar{\nu }$ Decays
• Unparticle physics effects in B_s mixing
• New Strategies to Obtain Insights into CP Violation Through $B_s\to D_s^{\pm }{K}^{\mp },D_s^{\ast \pm }{K}^{\mp },...$ and $B_d\to D^{\pm }{\pi }^{\mp },D^{\ast \pm }{\pi }^{\mp },...$ Decays
• How large can the SM contribution to CP violation in $D^0-{\bar{D}}^0$ mixing be?
• B_s-anti-B_s Mixing in Z' Models with Flavor-Changing Neutral Currents
• Enhanced $B_s$--${\bar{B}}_s$ lifetime difference and anomalous like-sign dimuon charge asymmetry from new physics in $B_s\to {\tau }^{+}{\tau }^{-}$
• Constraining the Phase of B_s - \bar{B}_s Mixing
• Effective Lifetimes of $B_s$ Decays and their Constraints on the $B_s^0$-${\bar{B}}_s^0$ Mixing Parameters
• Anatomy of $B_{s,d}^0\to J/\psi f_0(980)$
• $B_{s,d}\to \pi \pi ,\pi K,KK$: Status and Prospects
• Limits on scalar leptoquark interactions and consequences for GUTs
• Measurement of the Lifetime Difference of $B_d$ Mesons: Possible and Worthwhile?
• Lifetime Difference in B_s mixing: Standard Model and beyond
• Exploring CP Violation through Correlations in B --> pi K, B_d --> pi^+pi^-, B_s --> K^+K^- Observable Space
• In Pursuit of New Physics with B^0_s -> K^+K^-
• Removing Discrete Ambiguities in CP Asymmetry Measurements
• Rare Decays and CP Violation in the $B_s$ System
• Exploring CP Violation and $\eta$-${\eta }^{\prime }$ Mixing with the $B_{s,d}^0\to J/\psi {\eta }^{(\prime )}$ Systems
• B_s^0 - bar{B}_s^0 Mixing and the B_s -> J/psi phi Asymmetry in Supersymmetric Models
• Exploring CP Violation and Penguin Effects through $B_d^0\to D^{+}{D}^{-}$ and $B_s^0\to D_s^{+}{D}_s^{-}$
• An Analysis of B_s Decays in the Left-Right-Symmetric Model with Spontaneous CP Violation
• Constraining Scalar Leptoquarks from the K and B Sectors
• Constraining Models of New Physics in Light of Recent Experimental Results on $a_{\psi K_S}$
• Possibility of large lifetime differences in neutral B meson systems
• B --> Phi K_S and Supersymmetry
• Lifetime difference of $B_s$ mesons - Theory status
• Relating B_s Mixing and B_s -> mu+mu- with New Physics
• CP violation and limits on New Physics including recent $B_s$ measurements
• Constraining New Physics with the CDF Measurement of CP Violation in $B\to \psi K_S$
• Hunting for CP violation with untagged charm decays
• Measurement of the effective $B_s^0\to K^{+}{K}^{-}$ lifetime
• R-parity violating supersymmetry, B_s mixing, and D_s -> l nu
• Remarks on the $A_{SL}^s$ and $\Delta {\Gamma }_s$ Studies at the Tevatron and Beyond
• Measurement of the effective $B_s^0\to K^{+}{K}^{-}$ lifetime
• Effective lifetime measurements in the $B_s^0\to K^{+}{K}^{-}$, $B^0\to K^{+}{\pi }^{-}$ and $B_s^0\to {\pi }^{+}{K}^{-}$ decays
• Mass-matrix ansatz and constraints on $B_s^0-{\bar{B}}_s^0$ mixing in 331 models
• Randall-Sundrum Corrections to the Width Difference and CP-Violating Phase in $B_s^0$-Meson Decays
• CP Asymmetries in B_s Decays and Spontaneous CP violation
• Measurements of exclusive B_s^0 decays at the Y(5S) resonance
• SM Higgs boson and $t\to cZ$ decays in the 2HDM type III with CP violation
• Towards Extractions of the CKM Angle $\gamma$ from $B_{u,d}\to \pi K$ and Untagged $B_s\to K\bar{K}$ Decays
• Resolving the sign ambiguity in Delta Gamma_s with B_s -> D_s K
• Reconciling anomalous measurements in $B_s-{\bar{B}}_s$ mixing: the role of CPT-conserving and CPT-violating new physics
• Reevaluating R-parity Violating Supersymmetry Effects in B_s^0-\bar{B}_s^0 Mixing
• Studying of B_s^0-\bar{B}_s^0 mixing and B_{s}\to K^{(*)-}K^{(*)+} decays within supersymmetry
• Exploring the Unitarity Triangle through CP violation observables in $B_s\to K^{+}{K}^{-}$
• Probing CPT Violation in B Systems
• Bounds on new physics from B_s mixing
• A Novel Possibility to Determine the CP-violating Phase γand the B^0_s-\bar{B}^0_s Mixing Parameter y_s at the Υ(5S) Resonance
• Measurement of the Width Difference of B_d Mesons
• Impact of B physics on model building and vice versa: an example
• LHCb time-dependent results
• B_s decays at Belle
• Effect of Supersymmetric Right-handed Flavor Mixing on $B_s$ decays
• Decays of B_s Mesons and b Baryons: A Review of Recent First Observations and Branching Fractions