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Search for CP Violation and Measurement of the Branching Fraction in the Decay D-0 -˃ (KSKS0)-K-0

Title
Search for CP Violation and Measurement of the Branching Fraction in the Decay D-0 -˃ (KSKS0)-K-0
Author
천병구
Keywords
BELLE; PACKAGE
Issue Date
2017-10
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v. 119, no. 17, Article no. 171801
Abstract
We report a study of the decay D-0 -> (KSKS0)-K-0 using 921 fb(-1) of data collected at or near the (sic)(4S) and (sic)(5S) resonances with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. The measured time-integrated CP asymmetry is A(CP)(D-0 -> (KSKS0)-K-0) = (-0.02 +/- 1.53 +/- 0.02 +/- 0.17)%, and the branching fraction is B(D-0 -> (KSKS0)-K-0) = (1.321 +/- 0.023 +/- 0.036 +/- 0.044) x 10(-4), where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D-0 -> K-S(0)pi(0)). These results are significantly more precise than previous measurements available for this mode. The A(CP) measurement is consistent with the standard model expectation.
URI
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.171801https://repository.hanyang.ac.kr/handle/20.500.11754/115824
ISSN
0031-9007; 1079-7114
DOI
10.1103/PhysRevLett.119.171801
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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