천병구
2018-02-08T08:20:04Z
2018-02-08T08:20:04Z
2011-05
PHYSICAL REVIEW LETTERS; MAY 23 2011, 106 21, 6p.
0031-9007
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.106.211801
We have searched for CP violation in the decays D-0 -> (KSP0)-P-0 where P-0 denotes a neutral pseudoscalar meson that is either a pi(0), eta, or eta' using KEKB asymmetric- energy e(+)e(-) collision data corresponding to an integrated luminosity of 791 fb(-1) collected with the Belle detector. No evidence of significant CP violation is observed. We report the most precise CP asymmetry measurement in the decay D-0 -> K-S(0)pi(0) to date: A(CP)D(0) -> K-S(0)pi(0) = (-0.28 +/- 0.19 +/- 0.10)%. We also report the first measurements of CP asymmetries in the decays D-0 -> K-S(0) -> and D-0 -> K-S(0)eta': A(CP)(D0 -> KS0 eta) =(+0.54 +/- 0.51 +/- 0.16)% and A(CP)(D0 -> KS0 eta') = (+0.98 +/- 0.67 +/- 0.14)%, respectively.
We thank the KEKB group for excellent operation of the accelerator, the KEK cryogenics group for efficient solenoid operations, and the KEK computer group and the NII for valuable computing and SINET3 network support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); MEST, NRF, NSDC of KISTI, and WCU (Korea); MNiSW (Poland);
en
AMER PHYSICAL SOC
BELLE
DETECTOR
Search for CP Violation in the Decays D-0 -˃ (KSP0)-P-0
Article
21
106
10.1103/PhysRevLett.106.211801
1-1
PHYSICAL REVIEW LETTERS
Won, Eunil
Nitoh, Osamu
Pakhlov, Pavel
Uglov, Timofey
Mizuk, Roman
Solovieva, Elena
Trabelsi, Karim
Ko, B. R.
Won, E.
Cheon, B. G.
2011207605
S
COLLEGE OF NATURAL SCIENCES[S]
DEPARTMENT OF PHYSICS
bgcheon