Search for CP Violation and Measurement of the Branching Fraction in the Decay D0 → KS0 KS0

Belle Collaboration

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We report a study of the decay D0→KS0KS0 using 921 fb-1 of data collected at or near the (4S) and (5S) resonances with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured time-integrated CP asymmetry is ACP(D0→KS0KS0)=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D0→KS0KS0)=(1.321±0.023±0.036±0.044)×10-4, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D0→KS0π0). These results are significantly more precise than previous measurements available for this mode. The ACP measurement is consistent with the standard model expectation.

本文言語English
論文番号171801
ジャーナルPhysical review letters
119
17
DOI
出版ステータスPublished - 2017 10 23

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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