Combined D0 measurements constraining theCP-violating phase and width difference in theBs0system
نویسندگان
چکیده
منابع مشابه
Width Difference in the D −d0 System
Neutral meson-antimeson mixing provides important information about electroweak symmetry breaking and quark dynamics. In that respect, the D0−D0 system is unique as it is the only system that is sensitive to the dynamics of the bottom-type quarks. The D − D mixing proceeds extremely slowly, which in the Standard Model (SM) 1,2,3,4,5 is usually attributed to the absence of superheavy quarks dest...
متن کاملLifetime difference and CP-violating phase in the Bs0 system.
From an analysis of the decay Bs0-->J/psi phi, we obtain the width difference between the light and heavy mass eigenstates DeltaGamma identical with (GammaL-GammaH)=0.17+/-0.09(stat)+/-0.02(syst) ps-1 and the CP-violating phase phis=-0.79+/-0.56(stat)(-0.01)(+0.14)(syst). Under the hypothesis of no CP violation (phis identical with 0), we obtain 1/Gamma=tau(Bs0)=1.52+/-0.08(stat)(-0.03)(+0.01)(...
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I review constraints on possible New Physics interactions from D−D 0 mixing measurements. I consider the most general low energy effective Hamiltonian and include leading order QCD running of effective operators. I discuss constraints from an extensive list of popular New Physics models, each of which could be discovered at the LHC, that can generate these operators. In most of the scenarios, s...
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Article history: Received 17 August 2016 Received in revised form 5 September 2016 Accepted 15 September 2016 Available online 20 September 2016 Editor: M. Doser A time-dependent angular analysis of Bs →ψ(2S)φ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0 fb−1 collected during Run 1 of the LHC. The CP-violating phase ...
متن کاملMeasurement of the D*(2010)+ meson width and the D*(2010)+ - D0 mass difference.
We measure the mass difference Δm0 between the D*(2010)+ and the D0 and the natural linewidth Γ of the transition D*(2010)+ → D0π+. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υ(4S) resonance, and correspond to an integrated luminosity of approximately 477 fb(-1). The D0 is reconstructed in the decay modes D0 → K- π+ and D0 → K- π+ π- π+. For the d...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2007
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.76.057101