Measurement of branching fraction and search for CP violation in B→ϕϕK
نویسندگان
چکیده
We report the measurement of branching fractions and CP-violation asymmetries in B→ϕϕK decays based on a 711 fb−1 data sample containing 772×106 BB¯ events. The were recorded at ϒ(4S) resonance with Belle detector KEKB asymmetric-energy e+e− collider. For B+→ϕϕK+, fraction asymmetry measured below ηc threshold (mϕϕ<2.85 GeV/c2) are [3.43−0.46+0.48(stat)±0.22(syst)]×10−6 −0.02±0.11(stat)±0.01(syst), respectively. Similarly, obtained for B0→ϕϕK0 is [3.02−0.66+0.75(stat)±0.20(syst)]×10−6. also measure B+→ϕϕK+ within region (mϕϕ∈[2.94,3.02] to be +0.12±0.12(stat)±0.01(syst).Received 20 January 2021Accepted 8 March 2021DOI:https://doi.org/10.1103/PhysRevD.103.052013Published by American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution this work must maintain attribution author(s) published article’s title, journal citation, DOI. Funded SCOAP3.Published SocietyPhysics Subject Headings (PhySH)Research AreasBranching fractionFeynman diagramsFlavor changing neutral currentsHadronic decaysLepton-lepton interactionsRare decaysPropertiesCP violationParticles & Fields
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.103.052013