https://scholars.lib.ntu.edu.tw/handle/123456789/606810
標題: | Measurement of branching fraction and search for CP violation in B →φφK | 作者: | Mohanty S WEI-SHU HOU et al. |
公開日期: | 2021 | 卷: | 103 | 期: | 5 | 來源出版物: | Physical Review D | 摘要: | 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). ? 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104591658&doi=10.1103%2fPhysRevD.103.052013&partnerID=40&md5=c467359fcc27932971c4a9126affcf63 https://scholars.lib.ntu.edu.tw/handle/123456789/606810 |
ISSN: | 24700010 | DOI: | 10.1103/PhysRevD.103.052013 |
顯示於: | 物理學系 |
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