Rare decays of the B meson
نویسندگان
چکیده
منابع مشابه
Rare B meson decays at the Tevatron
Rare B meson decays are an excellent probe for beyond the Standard Model physics. Two very sensitive processes are the B s,d → μ+μ− and b→ sμ+μ− decays. We report recent results at a center of mass energy of √ s = 1.96 TeV from the CDF II and D0 collaborations using between 3.7 fb−1 and 6.9 fb−1 taken during Run II of the Fermilab Tevatron Collider.
متن کاملTheory of Rare B Meson Decays
I review the NLO QCD calculations of the branching ratio for B → Xsγ in the SM. Including the leading electromagnetic corrections, one obtaines BR(B → Xsγ) = (3.32±0.30)×10−4. Confronting theory with the newest data, an updated value for |Vts| is obtained: |Vts| = 0.037±0.007. Theoretical progress on the photon energy spectrum is also discussed. The inclusive FCNC semileptonic decays in the SM ...
متن کاملMeasurements of Rare B Meson Decays at Belle
We report recent measurements of rare B meson decays by the Belle collaboration including branching fractions and time-independent partial-rate asymmetries. Emphasis is placed on the penguin mediated b → s transition, particularly, the recent discovery of the leptonic penguin decays, b → sll, in both semi-inclusive and exclusive channels. Comparisons are made between experimental results and st...
متن کاملStudy of Rare B Meson Decays at Belle
In this paper, we briefly review results on rare decays of B mesons from the Belle experiment, based on 10.4 fb−1 data collected on the Υ(4S) resonance. The topics include measurements of Cabibbo suppressed decays B → D(∗)K(∗), charmless twobody decays B → ππ, Kπ, KK and B → η′h (h = K+, π+,K0), and a search for flavor changing neutral current decays B → K(∗)l+l−. To appear in the Proceedings o...
متن کاملRare B Decays to States Containing a J/ψ Meson
We report preliminary measurements of the branching fractions for B → J/ψφK, B → J/ψφK S , B 0 → J/ψφ, B → J/ψη and B → J/ψη using 56 million BB̄ events collected at the Υ (4S) resonance with the BABAR detector at PEP-II. We measure branching fractions of B(B → J/ψφK)= (4.4± 1.4(stat)± 0.7(syst))×10 and B(B → J/ψφK S)=(5.1± 1.9(stat)± 0.9(syst))×10, and set upper limits at 90% C.L. for branching...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1986
ISSN: 0370-2693
DOI: 10.1016/0370-2693(86)90871-3