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Measurements of branching fraction and direct CP asymmetry in B-+/- -˃ (KSKSK +/-)-K-0-K-0 and a search for B-+/- -˃ (KSKS0)-K-0 pi(+/-)

Title
Measurements of branching fraction and direct CP asymmetry in B-+/- -˃ (KSKSK +/-)-K-0-K-0 and a search for B-+/- -˃ (KSKS0)-K-0 pi(+/-)
Author
천병구
Issue Date
2019-02
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 99, NO 3, no. 031102
Abstract
We study charmless hadronic decays of charged B mesons to the final states (KSKSK +/-)-K-0-K-0 and (KSKS0)-K-0 pi(+/-) using a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs and was collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) ethorne-collider. For B-+/- -˃ (KSKSK +/-)-K-0-K-0, the measured branching fraction and direct CP asymmetry are [10.42 +/- 0.43(stat) +/- 0.22(syst)] x 10(-6) and [+1.6 +/- 3.9(stat) +/- 0.9(syst)] %, respectively. In the absence of a statistically significant signal for B-+/- -˃ (KSKS0)-K-0 pi(+/-), we obtain a 90% confidence-level upper limit on its branching fraction as 8.7 x 10(-7).
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.031102https://repository.hanyang.ac.kr/handle/20.500.11754/134659
ISSN
2470-0010; 2470-0029
DOI
10.1103/PhysRevD.99.031102
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COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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