Measurement of branching fraction and search for CP violation in B →φφK

Mohanty, S. and Kaliyar, A.B. and Gaur, V. and Giri, Anjan Kumar et. al. (2021) Measurement of branching fraction and search for CP violation in B →φφK. Physical Review D, 103 (034908). ISSN 2470-0010

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Abstract

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 data were recorded at the I(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. For B+→φφK+, the branching fraction and CP-violation asymmetry measured below the ηc threshold (mφφ<2.85 GeV/c2) are [3.43-0.46+0.48(stat)±0.22(syst)]×10-6 and -0.02±0.11(stat)±0.01(syst), respectively. Similarly, the branching fraction obtained for B0→φφK0 below the ηc threshold is [3.02-0.66+0.75(stat)±0.20(syst)]×10-6. We also measure the CP-violation asymmetry for B+→φφK+ within the ηc region (mφφ[2.94,3.02] GeV/c2) to be +0.12±0.12(stat)±0.01(syst).

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IITH Creators:
IITH CreatorsORCiD
Giri, Anjan KumarUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: MSHE, CP violation in B →φφK
Subjects: Physics
Divisions: Department of Physics
Depositing User: . LibTrainee 2021
Date Deposited: 13 Jul 2021 10:45
Last Modified: 13 Jul 2021 10:45
URI: http://raiithold.iith.ac.in/id/eprint/8290
Publisher URL:
OA policy: https://v2.sherpa.ac.uk/id/publication/32263
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