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Abdesselam, Abdelmalek; Adachi, I.; Adametz, A.; Adye, T.; Ahmed, H.; Aihara, H.; Akar, S.; Alam, M. S.; Albert, J.; Al Said, S.; Andreassen, R.; Angelini, C.; Anulli, F.; Arinstein, K.; Arnaud, N.; Asner, D. M.; Aston, D.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bahinipati, S.; Bakich, A.M.; Band, H. R.; Banerjee, Sw; Barberio, E.; Bard, D. J.; Barlow, R. J.; Batignani, G.; Beaulieu, A.; Bellis, M.; Ben-Haim, E.; Bernard, D.; Bernlochner, F. U.; Bettarini, S.; Bettoni, D.; Bevan, A. J.; Bhardwaj, V.; Bhuyan, B.; Bianchi, F.; Biasini, M.; Biswal, J.; Blinov, V. E.; Bloom, P. C.; Bobrov, A.; Bomben, M.; Bondar, A.; Bonneaud, G. R.; Bonvicini, G.; Bozek, A.; Bozzi, C.; Bračko, M.; Briand, H.; Browder, T. E.; Brown, D. N.; Bünger, C.; Burchat, P. R.; Buzykaev, A. R.; Calabrese, R.; Calcaterra, A.; Calderini, G.; Carpinelli, M.; Cartaro, C.; Casarosa, G.; Cenci, R.; Červenkov, D.; Chang, P.; Chao, D. S.; Chauveau, J.; Cheaib, R.; Chekelian, V.; Chen, A.; Chen, C.; Cheng, C. H.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, H. H. F.; Choi, S.-K.; Chrzaszcz, M.; Cibinetto, G.; Cinabro, D.; Cochran, J.; Coleman, J. P.; Contri, R.; Convery, M. R.; Cowan, G.; Cowan, R.; Cremaldi, L.; Dalseno, J.; Dasu, S.; Davier, M.; Davis, C. l.; de Mori, F.; de Nardo, G.; Denig, A.G.; Derkach, D.
Physical review letters, 09/2015, Letnik: 115, Številka: 12Journal Article
We report a measurement of the time-dependent CP asymmetry of B0->D(*)CP h0 decays, where the light neutral hadron h0 is a pi0, eta or omega meson, and the neutral D meson is reconstructed in the CP eigenstates K+ K-, K0S pi0 or K0S omega. The measurement is performed combining the final data samples collected at the Y(4S) resonance by the BaBar and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain ( 471 +/- 3 ) x 10^6 BB pairs recorded by the BaBar detector and ( 772 +/- 11 ) x 10^6, BB pairs recorded by the Belle detector. We measure the CP asymmetry parameters -eta_f S = +0.66 +/- 0.10 (stat.) +/- 0.06 (syst.) and C = -0.02 +/- 0.07 (stat.) +/- 0.03 (syst.). These results correspond to the first observation of CP violation in B0->D(*)CP h0 decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
