First Evidence for

• Main Authors: Adachi, I. (Author), Adye, T. (Author), Ahmed, H. (Author), Ahn, J. K (Author), Aihara, H. (Author), Akar, S. (Author), Alam, M. S (Author), Albert, J. (Author), Anulli, F. (Author), Arnaud, N. (Author), Asner, D. M (Author), Aston, D. (Author), Atmacan, H. (Author), Aushev, T. (Author), Ayad, R. (Author), Babu, V. (Author), Badhrees, I. (Author), Bakich, A. M (Author), Banerjee, Sw (Author), Bansal, V. (Author), Barlow, R. J (Author), Batignani, G. (Author), Beaulieu, A. (Author), Behera, P. (Author), Bellis, M. (Author), Ben-Haim, E. (Author), Bernard, D. (Author), Bernlochner, F. U (Author), Bettarini, S. (Author), Bettoni, D. (Author), Bevan, A. J (Author), Bhardwaj, V. (Author), Bhuyan, B. (Author), Bianchi, F. (Author), Biasini, M. (Author), Biswal, J. (Author), Blinov, V. E (Author), Bomben, M. (Author), Bondar, A. (Author), Bonneaud, G. R (Author), Bozek, A. (Author), Bozzi, C. (Author), Bračko, M. (Author), Browder, T. E (Author), Brown, D. N (Author), Bünger, C. (Author), Burchat, P. R (Author), Buzykaev, A. R (Author), Calabrese, R. (Author), Calcaterra, A. (Author), Calderini, G. (Author), Di Carlo, S. (Author), Carpinelli, M. (Author), Cartaro, C. (Author), Casarosa, G. (Author), Cenci, R. (Author), Chao, D. S (Author), Chauveau, J. (Author), Cheaib, R. (Author), Chen, A. (Author), Chen, C. (Author), Cheng, C. H (Author), Cheon, B. G (Author), Chilikin, K. (Author), Cho, K. (Author), Choi, Y. (Author), Choudhury, S. (Author), Chrzaszcz, M. (Author), Cibinetto, G. (Author), Cinabro, D. (Author), Cochran, J. (Author), Coleman, J. P (Author), Convery, M. R (Author), Cowan, G. (Author), Cowan, R. (Author), Cremaldi, L. (Author), Cunliffe, S. (Author), Dash, N. (Author), Davier, M. (Author), Davis, C. L (Author), De Mori, F. (Author), De Nardo, G. (Author), Denig, A. G (Author), de Sangro, R. (Author), Dey, B. (Author), Di Lodovico, F. (Author), Dittrich, S. (Author), Doležal, Z. (Author), Dorfan, J. (Author), Drásal, Z. (Author), Druzhinin, V. P (Author), Dunwoodie, W. (Author), Ebert, M. (Author), Echenard, B. (Author), Eidelman, S. (Author), Eigen, G. (Author), Eisner, A. M (Author), Emery, S. (Author), Epifanov, D. (Author), Ernst, J. A (Author), Faccini, R. (Author), Fast, J. E (Author), Feindt, M. (Author), Ferber, T. (Author), Ferrarotto, F. (Author), Ferroni, F. (Author), Field, R. C (Author), Filippi, A. (Author), Finocchiaro, G. (Author), Fioravanti, E. (Author), Flood, K. T (Author), Forti, F. (Author), Fritsch, M. (Author), Fulsom, B. G (Author), Gabathuler, E. (Author), Gamba, D. (Author), Garg, R. (Author), Garmash, A. (Author), Gary, J. W (Author), Garzia, I. (Author), Gaur, V. (Author), Gaz, A. (Author), Gelb, M. (Author), Gershon, T. J (Author), Li Gioi, L. (Author), Giorgi, M. A (Author), Giri, A. (Author), Godang, R. (Author), Goldenzweig, P. (Author), Golob, B. (Author), Golubev, V. B (Author), Gorodeisky, R. (Author), Gradl, W. (Author), Graham, M. T (Author), Grauges, E. (Author), Griessinger, K. (Author), Gritsan, A. V (Author), Grünberg, O. (Author), Guan, Y. (Author), Guido, E. (Author), Guttman, N. (Author), Haba, J. (Author), Hafner, A. (Author), Hara, T. (Author), Harrison, P. F (Author), Hast, C. (Author), Hayasaka, K. (Author), Hayashii, H. (Author), Hearty, C. (Author), Heck, M. (Author), Hedges, M. T (Author), Heß, M. (Author), Hirose, S. (Author), Hitlin, D. G (Author), Honscheid, K. (Author), Hou, W.-S (Author), Hsu, C.-L (Author), Huard, Z. (Author), Van Hulse, C. (Author), Hutchcroft, D. E (Author), Inami, K. (Author), Inguglia, G. (Author), Innes, W. R (Author), Ishikawa, A. (Author), Itoh, R. (Author), Iwasaki, M. (Author), Iwasaki, Y. (Author), Izen, J. M (Author), Jacobs, W. W (Author), Jawahery, A. (Author), Jessop, C. P (Author), Jia, S. (Author), Jin, Y. (Author), Joo, K. K (Author), Julius, T. (Author), Kaliyar, A. B (Author), Kang, K. H (Author), Karyan, G. (Author), Kass, R. (Author), Kichimi, H. (Author), Kim, D. Y (Author), Kim, J. B (Author), Kim, K. T (Author), Kim, S. H (Author), Kim, J. (Author), Kim, P. (Author), King, G. J (Author), Kinoshita, K. (Author), Koch, H. (Author), Kodyš, P. (Author), Kolomensky, Yu. G (Author), Korpar, S. (Author), Kotchetkov, D. (Author), Kowalewski, R. (Author), Kravchenko, E. A (Author), Križan, P. (Author), Kroeger, R. (Author), Krokovny, P. (Author), Kuhr, T. (Author), Kulasiri, R. (Author), Kumita, T. (Author), Kuzmin, A. (Author), Kwon, Y.-J (Author), Lacker, H. M (Author), Lafferty, G. D (Author), Lanceri, L. (Author), Lange, J. S (Author), Lange, D. J (Author), Lankford, A. J (Author), Latham, T. E (Author), Leddig, T. (Author), Le Diberder, F. (Author), Lee, I. S (Author), Lee, S. C (Author), Lees, J. P (Author), Leith, D. W. G. S (Author), Li, L. K (Author), Li, Y. B (Author), Li, Y. (Author), Libby, J. (Author), Liventsev, D. (Author), Lockman, W. S (Author), Long, O. (Author), LoSecco, J. M (Author), Lou, X. C (Author), Lubej, M. (Author), Lueck, T. (Author), Luitz, S. (Author), Luo, T. (Author), Luppi, E. (Author), Lusiani, A. (Author), Lutz, A. M (Author), MacFarlane, D. B (Author), MacNaughton, J. (Author), Mallik, U. (Author), Manoni, E. (Author), Marchiori, G. (Author), Margoni, M. (Author), Martellotti, S. (Author), Martinez-Vidal, F. (Author), Masuda, M. (Author), Matsuda, T. (Author), Mattison, T. S (Author), Matvienko, D. (Author), McKenna, J. A (Author), Meadows, B. T (Author), Merola, M. (Author), Miyabayashi, K. (Author), Miyashita, T. S (Author), Miyata, H. (Author), Mizuk, R. (Author), Mohanty, G. B (Author), Moon, H. K (Author), Mori, T. (Author), Muller, D. R (Author), Müller, T. (Author), Mussa, R. (Author), Nakano, E. (Author), Nakao, M. (Author), Nanut, T. (Author), Nath, K. J (Author), Nayak, M. (Author), Neal, H. (Author), Neri, N. (Author), Nisar, N. K (Author), Nishida, S. (Author), Nugent, I. M (Author), Oberhof, B. (Author), Ocariz, J. (Author), Ogawa, S. (Author), Ongmongkolkul, P. (Author), Ono, H. (Author), Onuchin, A. P (Author), Onuki, Y. (Author), Oyanguren, A. (Author), Pakhlov, P. (Author), Pakhlova, G. (Author), Pal, B. (Author), Palano, A. (Author), Palombo, F. (Author), Panduro Vazquez, W. (Author), Paoloni, E. (Author), Pardi, S. (Author), Park, H. (Author), Passaggio, S. (Author), Patrignani, C. (Author), Patteri, P. (Author), Paul, S. (Author), Pavelkin, I. (Author), Payne, D. J (Author), Pedlar, T. K (Author), Peimer, D. R (Author), Peruzzi, I. M (Author), Pestotnik, R. (Author), Piccolo, M. (Author), Piilonen, L. E (Author), Pilloni, A. (Author), Piredda, G. (Author), Poireau, V. (Author), Popov, V. (Author), Porter, F. C (Author), Posocco, M. (Author), Prell, S. (Author), Prepost, R. (Author), Puccio, E. M. T (Author), Purohit, M. V (Author), Pushpawela, B. G (Author), Rama, M. (Author), Randle-Conde, A. (Author), Ratcliff, B. N (Author), Raven, G. (Author), Resmi, P. K (Author), Ritchie, J. L (Author), Ritter, M. (Author), Rizzo, G. (Author), Roberts, D. A (Author), Robertson, S. H (Author), Röhrken, M. (Author), Roney, J. M (Author), Roodman, A. (Author), Rossi, A. (Author), Rotondo, M. (Author), Rozanska, M. (Author), Russo, G. (Author), Sacco, R. (Author), Al Said, S. (Author), Sakai, Y. (Author), Salehi, M. (Author), Sandilya, S. (Author), Santelj, L. (Author), Santoro, V. (Author), Sanuki, T. (Author), Savinov, V. (Author), Schneider, O. (Author), Schnell, G. (Author), Schroeder, T. (Author), Schubert, K. R (Author), Schwanda, C. (Author), Schwartz, A. J (Author), Schwitters, R. F (Author), Sciacca, C. (Author), Seddon, R. M (Author), Seino, Y. (Author), Sekula, S. J (Author), Senyo, K. (Author), Seon, O. (Author), Serednyakov, S. I (Author), Sevior, M. E (Author), Shebalin, V. (Author), Shen, C. P (Author), Shibata, T.-A (Author), Shimizu, N. (Author), Shiu, J.-G (Author), Simi, G. (Author), Simon, F. (Author), Simonetto, F. (Author), Skovpen, Yu. I (Author), Smith, J. G (Author), Smith, A. J. S (Author), So, R. Y (Author), Sobie, R. J (Author), Soffer, A. (Author), Sokoloff, M. D (Author), Solodov, E. P (Author), Solovieva, E. (Author), Spanier, S. M (Author), Starič, M. (Author), Stroili, R. (Author), Sullivan, M. K (Author), Sumisawa, K. (Author), Sumiyoshi, T. (Author), Summers, D. J (Author), Sun, L. (Author), Takizawa, M. (Author), Tamponi, U. (Author), Tanida, K. (Author), Taras, P. (Author), Tasneem, N. (Author), Tenchini, F. (Author), Tisserand, V. (Author), Todyshevx, K. Yu (Author), Touramanis, C. (Author), Uchida, M. (Author), Uglov, T. (Author), Unno, Y. (Author), Uno, S. (Author), Vahsen, S. E (Author), Varner, G. (Author), Vasseur, G. (Author), Va'vra, J. (Author), Červenkov, D. (Author), Verderi, M. (Author), Vitale, L. (Author), Vorobyev, V. (Author), Voß, C. (Author), Wagner, S. R (Author), Waheed, E. (Author), Waldi, R. (Author), Walsh, J. J (Author), Wang, B. (Author), Wang, C. H (Author), Wang, M.-Z (Author), Wang, P. (Author), Watanabe, Y. (Author), Wilson, F. F (Author), Wilson, J. R (Author), Wisniewski, W. J (Author), Won, E. (Author), Wormser, G. (Author), Wright, D. M (Author), Wu, S. L (Author), Ye, H. (Author), Yuan, C. Z (Author), Yusa, Y. (Author), Zakharov, S. (Author), Zallo, A. (Author), Zani, L. (Author), Zhang, Z. P (Author), Zhilich, V. (Author), Zhukova, V. (Author), Zhulanov, V. (Author), Zupanc, A. (Author)
• Format: Article
• Language: English
• Published: American Physical Society, 2021-11-02T12:39:20Z.
• Subjects: Article
• Online Access: Get fulltext

 We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.