Impact of Delta mB_s on the determination of the unitary triangle and bounds on physics beyond the Standard Model

Abstract

We study the impact on the unitarity triangle of the Bs-bar{Bs} flavor oscillation data analyses being carried out at the Tevatron Run II. In the current version of this work we consider the first direct experimental bound on the mass difference Delta mB_s recently reported by DO along with the first measurement achieved by CDF, Delta mB_s=(17.33 + - 0.4) ps^{-1}. In particular we show how these measurements further constrain the compatibility between the experimental value of sin(2beta)^{exp.}=(0.591,0.783) at 99% C.L. and the value obtained by the fit of the CKM parameters considering just CP conserving experimental observables: sin(2beta)^{CP-conserv.}=(0.742,0.856) at 99% C.L. We also obtain bounds on certain classes of processes beyond the SM.

arXiv commentUpdated version after the first Delta mB_s measurement. Improved abstract, introduction and conclusions. 42 pages, 40 eps figures

References in corpus (18)

• Weak Decays Beyond Leading Logarithms
• New two-loop contribution to electric dipole moment in supersymmetric theories
• Enhancement of the $K_L$ -- $K_S$ Mass Difference by Short Distance QCD Corrections Beyond Leading Logarithms
• 2000 CKM-Triangle Analysis A Critical Review with Updated Experimental Inputs and Theoretical Parameters
• Next-to-Leading QCD Corrections to B\to X_s γin Supersymmetry
• The e+ e- --> 3(pi+pi-), 2(pi+pi-pi0) and K+K- 2(pi+pi-) Cross Sections at Center-of-Mass Energies from Production Threshold to 4.5 GeV Measured with Initial-State Radiation
• Probing New Physics through B Mixing: Status, Benchmarks and Prospects
• The CKM Matrix and the Unitarity Triangle
• Constraints on new physics from the quark mixing unitarity triangle
• The UTfit Collaboration Report on the Status of the Unitarity Triangle beyond the Standard Model I. Model-independent Analysis and Minimal Flavour Violation
• $b\to sl\bar{l}$ in the minimal supergravity model
• CP-odd Phase Correlations and Electric Dipole Moments
• Constraining the Phase of B_s - \bar{B}_s Mixing
• Effect of supersymmetric CP phases on the $B\to X_s\gamma$ and $B\to X_s{l}^{+}{l}^{-}$ decays in the minimal supergravity model
• $B^0$--${\overline{B}}^0$ mixing and ${\epsilon }_K$ parameter in the minimal supergravity model
• CP violation and limits on New Physics including recent $B_s$ measurements
• Effect of SUSY phases on the $B_d^0-{\bar{B}}_d^0$ mixing in the minimal supergravity model
• Next-to-Leading Order QCD corrections to $B\bar{B}$-mixing and ${\epsilon }_K$ within the MSSM

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