B(s)-B(s)bar Mixing in Supersymmetric Grand Unified Models

Abstract

We study B_s-\bar{B}_s mixing in grand unified SO(10), SU(5) models where the mixings among the second and third generation squarks arise due to the existence of flavor violating sources in the Dirac and Majorana couplings which are responsible for neutrino mixings. We find that when the branching ratio of tau->mu gamma decay is enhanced to be around the current experimental bound, B_s-\bar{B}_s mixing may also contain large contribution from supersymmetry in the SO(10) boundary condition. Consequently, the phase of B_s-\bar{B}_s mixing is large (especially for small tan beta and large scalar mass m_0) and can be tested by measuring CP asymmetries of B_s decay modes.

5 pages, 3 figures. Modifications in the text and the title, references added, results unchanged, to appear in PRL

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Cited by in corpus (16)

• Unparticle physics effects in B_s mixing
• Unparticle effect on B_s - \bar B_s mixing and its implications for B_s \to J/ψϕ, ϕϕdecays
• Patterns of flavor signals in supersymmetric models
• Proton Decay and Flavor Violating Thresholds in SO(10) Models
• Large Phase of B_s-\bar B_s Mixing in Supersymmetric Grand Unified Theories
• Implications of the measurements of B_s - B_s bar mixing on SUSY models
• $B_s^0-{\bar{B}}_s^0$ mixing and $b\to s$ transitions in isosinglet down quark model
• Correlation between lepton flavor violation and B_{(d,s)} - \bar{B}_{(d,s)} mixing in SUSY GUT
• Modification of the Unitarity Relation for sin2beta-Vub in Supersymmetric Models
• B_s mixing phase and lepton flavor violation in supersymmetric SU(5)
• B/s0 anti-B/s0 mixing in the MSSM with large tan beta
• Constraint from D - anti-D Mixing in Left-Right Symmetric Models
• Penguin Contribution to the Phase of B_s-\bar B_s Mixing and B_s -> mu mu in Grand Unified Theories
• $B_{s(d)}^0-{\bar{B}}_{s(d)}^0$ mixing and new physics effects in a top quark two-Higgs doublet model
• 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
• Correlation between direct dark matter detection and Br(B_s -> mu mu) with a large phase of B_s - anti-B_s mixing