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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 発行・発表の年月 | 2017/03 |
| 形態種別 | その他 |
| 標題 | First measurement of $\boldsymbol{T}$-odd moments in $\boldsymbol{D^{0} \rightarrow K_{S}^{0} π^{+} π^{-} π^{0 } }$ decays |
| 執筆形態 | その他 |
| 著者・共著者 | Belle Collaboration,K. Prasanth,J. Libby,I. Adachi,H. Aihara,S. Al Said,D. M. Asner,V. Aulchenko,T. Aushev,R. Ayad,V. Babu,I. Badhrees,S. Bahinipati,A. M. Bakich,V. Bansal,E. Barberio,M. Berger,V. Bhardwaj,B. Bhuyan,J. Biswal,A. Bobrov,A. Bondar,G. Bonvicini,A. Bozek,M. Bračko,T. E. Browder,D. Červenkov,V. Chekelian,A. Chen,B. G. Cheon,K. Chilikin,R. Chistov,K. Cho,S. -K. Choi,Y. Choi,D. Cinabro,N. Dash,S. Di Carlo,Z. Doležal,Z. Drásal,D. Dutta,S. Eidelman,D. Epifanov,H. Farhat,J. E. Fast,T. Fer |
| 概要 | We report the first measurement of the $T$-odd moments in the decay $D^{0}
\rightarrow K_{S}^{0} \pi^{+} \pi^{-} \pi^{0}$ from a data sample corresponding to an integrated luminosity of $966\,{\rm fb}^{-1}$ collected by the Belle experiment at the KEKB asymmetric-energy $e^+ e^-$ collider. From these moments we determine the $CP$-violation-sensitive asymmetry $a_{CP}^{T\text{-odd } } = \left[-0.28 \pm 1.38 ~(\rm{stat.}) ^{+0.23}_{-0.76} ~(\rm{syst.})\right] \times 10^{-3}$, which is consistent with no $CP$ violation. In addition, we perform $a_{CP}^{T\text{-odd } }$ measurements in different regions of the $D^{0} \rightarrow K_{S}^{0} \pi^{+} \pi^{-} \pi^{0}$ phase space; these are also consistent with no $CP$ violation. |
| DOI | 10.1103/PhysRevD.95.091101 |
| PermalinkURL | http://arxiv.org/abs/1703.05721v1 |
| researchmap用URL | http://arxiv.org/pdf/1703.05721v1 |