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論文

First measurement of $$T$$-odd moments in $$D^0 to K^0_S pi^+pi^-pi^0$$ decays

Prasanth, K.*; 谷田 聖; Belle Collaboration*; 他195名*

Physical Review D, 95(9), p.091101_1 - 091101_8, 2017/05

AA2017-0236.pdf:0.62MB

https://doi.org/10.1103/PhysRevD.95.091101
 被引用回数：8 パーセンタイル：40.39(Astronomy & Astrophysics)

We report the first measurement of the $$T$$-odd moments in the decay $$D^0 to K^0_S pi^+pi^-pi^0$$ from a data sample corresponding to an integrated luminosity of 966 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 $$a_{CP}^{{rm T-odd}}=[-0.28 pm 1.38 ({rm stat.}) ^{+0.23}_{-0.76}({rm syst.})] times 10^{-3}$$, which is consistent with no CP violation. In addition, we perform $$a_{CP}^{{rm T-odd}}$$ measurements in different regions of the $$D^0 to K^0_S pi^+pi^-pi^0$$ phase space; these are also consistent with no CP violation.

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