Bs0−Bs0mixing and theBs→J/ψφasymmetry in supersymmetric models

2003/11/27 by Patricia Ball, P. Ball, Shaaban Khalil +2 · 5 citations
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.69.115011

published as Phys.Rev. D69 (2004) 115011 · 17 pages, 5 figures

arxiv created 2003/11/27 · openalex publication_date 2004/06/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analyze supersymmetric contributions to B_s mixing and their impact on mixing-induced CP asymmetries, using the mass insertion approximation. We discuss in particular the correlation of supersymmetry (SUSY) effects in the CP asymmetries of B_s\ensuremath→J/\ensuremathψ\ensuremathφ and B_d\ensuremath→\ensuremathφK_S and find that the mass insertions dominant in B_s mixing and B_d\ensuremath→\ensuremathφK_S are (\ensuremathδ₂₃^d)_LL,RR and (\ensuremathδ₂₃^d)_LR,RL, respectively. We show that models with dominant (\ensuremathδ₂₃^d)_LR,RL can accommodate a negative value of S_\ensuremathφK_S, in agreement with the Belle measurement of that observable, but yield a B_s mixing phase too small to be observed. On the other hand, models with dominant (\ensuremathδ₂₃^d)_LL,RR predict sizable SUSY contributions to both \ensuremathΔM_s and the mixing phase, but do not allow the asymmetry in B_d\ensuremath→\ensuremathφK_S to become negative, except for small values of the average down squark mass, which, in turn, entail a value of \ensuremathΔM_s too large to be observed at the Fermilab Tevatron and CERN LHC. We conclude that the observation of B_s mixing at hadron machines, together with the confirmation of a negative value of S_\ensuremathφK_S, disfavors models with a single dominant mass insertion.

Citations

• Constraints on the CKM angle γ from B→K∗±π∓
• Measurement of CP-Violation Parameter sin(2phi1) with 152 Million BB-bar Pairs
• CP violations in the K and B meson systems in the SUSY models with (S3)3flavor symmetry
• B→φKandB→φXsin the heavy quark limit
• QCD corrections to lifetime differences of B_s mesons
• B-parameters of the complete set of matrix elements of (ΔB = 2) operators from the lattice
• Review of particle properties
• Review of Particle Physics
• Measurement of time-dependent CP-violating asymmetries in B0-->phiK(0)S, K+K-K0(S), and eta'K0(S) decays.

Cited by

• B → X s γ, X s l + l − Decays and Constraints on Mass Insertion Parameters in MSSM
• Probing new physics through B mixing: Status, benchmarks and prospects
• B→Vγbeyond QCD factorization
• Correlation between lepton flavor violation and B(d,s)–B¯(d,s) mixing in SUSY GUT
• Squark flavor implications from B → K^( * )l ⁺ l ^-