Journal article
Search for CP-violating charge asymmetry in B±→J/ ψK± decays
K Sakai, T Kawasaki, H Aihara, K Arinstein, T Aushev, AM Bakich, V Balagura, E Barberio, K Belous, V Bhardwaj, B Bhuyan, M Bischofberger, A Bondar, A Bozek, M Bračko, TE Browder, MC Chang, Y Chao, A Chen, KF Chen Show all
Physical Review D Particles Fields Gravitation and Cosmology | Published : 2010
Abstract
We present the result of a search for charge asymmetry in B ±→J/ψK± decays using 772×106 BB̄ pairs collected at the Υ(4S) resonance by the Belle detector at the KEKB asymmetric-energy e+e- collider. The CP-violating charge asymmetry is measured to be ACP(B+→J/ ψK+)=[-0.76±0.50(stat)±0.22(syst)]%. © 2010 The American Physical Society.
Grants
Funding Acknowledgements
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); MES and RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE (USA).