학술논문

Measurement of branching-fraction ratios and CP asymmetries in B± → DCP±K± decays at Belle and Belle II
Document Type
Original Paper
Author
Adachi, I.Aggarwal, L.Aihara, H.Akopov, N.Aloisio, A.Anh Ky, N.Asner, D. M.Atmacan, H.Aushev, T.Aushev, V.Aversano, M.Ayad, R.Babu, V.Bae, H.Bahinipati, S.Bambade, P.Banerjee, Sw.Barrett, M.Baudot, J.Bauer, M.Baur, A.Beaubien, A.Becherer, F.Becker, J.Behera, P. K.Belous, K.Bennett, J. V.Bernlochner, F. U.Bertacchi, V.Bertemes, M.Bertholet, E.Bessner, M.Bettarini, S.Bhuyan, B.Bianchi, F.Bilka, T.Biswas, D.Bobrov, A.Bodrov, D.Bolz, A.Bondar, A.Borah, J.Bozek, A.Bračko, M.Branchini, P.Briere, R. A.Browder, T. E.Budano, A.Bussino, S.Campajola, M.Cao, L.Casarosa, G.Cecchi, C.Cerasoli, J.Chang, M.-C.Chang, P.Cheema, P.Chekelian, V.Cheon, B. G.Chilikin, K.Chirapatpimol, K.Cho, H.-E.Cho, K.Choi, S.-K.Choi, Y.Choudhury, S.Cochran, J.Corona, L.Cremaldi, L. M.Czank, T.Das, S.Dattola, F.De La Cruz-Burelo, E.De La Motte, S. A.de Marino, G.De Nardo, G.De Nuccio, M.De Pietro, G.de Sangro, R.Destefanis, M.Dey, S.De Yta-Hernandez, A.Dhamija, R.Di Canto, A.Di Capua, F.Dingfelder, J.Doležal, Z.Domínguez Jiménez, I.Dong, T. V.Dorigo, M.Dort, K.Dossett, D.Dreyer, S.Dubey, S.Dujany, G.Ecker, P.Eliachevitch, M.Feichtinger, P.Ferber, T.Ferlewicz, D.Fillinger, T.Finck, C.Finocchiaro, G.Fodor, A.Forti, F.Frey, A.Fulsom, B. G.Gabrielli, A.Ganiev, E.Garcia-Hernandez, M.Garg, R.Garmash, A.Gaudino, G.Gaur, V.Gaz, A.Gellrich, A.Ghevondyan, G.Ghosh, D.Ghumaryan, H.Giakoustidis, G.Giordano, R.Giri, A.Gobbo, B.Godang, R.Gogota, O.Goldenzweig, P.Gradl, W.Granderath, S.Graziani, E.Greenwald, D.Gruberová, Z.Gu, T.Guan, Y.Gudkova, K.Halder, S.Han, Y.Hara, T.Hayasaka, K.Hayashii, H.Hazra, S.Hearty, C.Hedges, M. T.Heidelbach, A.Heredia de la Cruz, I.Hernández Villanueva, M.Hershenhorn, A.Higuchi, T.Hill, E. C.Hoek, M.Hohmann, M.Horak, P.Hou, W.-S.Hsu, C.-L.Iijima, T.Inami, K.Ipsita, N.Ishikawa, A.Ito, S.Itoh, R.Iwasaki, M.Jackson, P.Jacobs, W. W.Jang, E.-J.Ji, Q. P.Jia, S.Jin, Y.Johnson, A.Junkerkalefeld, H.Kakuno, H.Kaliyar, A. B.Kandra, J.Kang, K. H.Karyan, G.Kawasaki, T.Keil, F.Ketter, C.Kiesling, C.Kim, C.-H.Kim, D. Y.Kim, K.-H.Kim, Y.-K.Kindo, H.Kinoshita, K.Kodyš, P.Koga, T.Kohani, S.Kojima, K.Korobov, A.Korpar, S.Kovalenko, E.Kowalewski, R.Kraetzschmar, T. M. G.Križan, P.Krokovny, P.Kuhr, T.Kumar, M.Kumar, R.Kumara, K.Kunigo, T.Kuzmin, A.Kwon, Y.-J.Lacaprara, S.Lai, Y.-T.Lam, T.Lanceri, L.Lange, J. S.Laurenza, M.Leboucher, R.Le Diberder, F. R.Lee, M. J.Leitl, P.Levit, D.Lewis, P. M.Li, C.Li, J.Li, L. K.Li, Y.Libby, J.Liu, Q. Y.Liu, Z. Q.Liventsev, D.Longo, S.Lueck, T.Luo, T.Lyu, C.Ma, Y.Maggiora, M.Maharana, S. P.Maiti, R.Maity, S.Mancinelli, G.Manfredi, R.Manoni, E.Mantovano, M.Marcantonio, D.Marcello, S.Marinas, C.Martel, L.Martellini, C.Martini, A.Martinov, T.Massaccesi, L.Masuda, M.Matsuda, T.Matvienko, D.Maurya, S. K.McKenna, J. A.Mehta, R.Meier, F.Merola, M.Metzner, F.Milesi, M.Miller, C.Mirra, M.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Molina-Gonzalez, N.Mondal, S.Moneta, S.Moser, H.-G.Mrvar, M.Mussa, R.Nakamura, I.Nakano, T.Nakazawa, Y.Narimani Charan, A.Naruki, M.Natkaniec, Z.Natochii, A.Nayak, L.Nazaryan, G.Nisar, N. K.Nishida, S.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Otani, F.Pakhlov, P.Pakhlova, G.Paladino, A.Panta, A.Paoloni, E.Pardi, S.Parham, K.Park, H.Park, S.-H.Paschen, B.Passeri, A.Patra, S.Paul, S.Pedlar, T. K.Peruzzi, I.Peschke, R.Pestotnik, R.Pham, F.Piccolo, M.Piilonen, L. E.Podesta-Lerma, P. L. M.Podobnik, T.Pokharel, S.Praz, C.Prell, S.Prencipe, E.Prim, M. T.Purwar, H.Rad, N.Rados, P.Raeuber, G.Raiz, S.Reif, M.Reiter, S.Remnev, M.Ripp-Baudot, I.Rizzo, G.Rizzuto, L. B.Robertson, S. H.Roehrken, M.Roney, J. M.Rostomyan, A.Rout, N.Russo, G.Sahoo, D.Sandilya, S.Sangal, A.Santelj, L.Sato, Y.Savinov, V.Scavino, B.Schmitt, C.Schnell, G.Schwanda, C.Schwartz, A. J.Seino, Y.Selce, A.Senyo, K.Serrano, J.Sevior, M. E.Sfienti, C.Shan, W.Sharma, C.Shi, X. D.Shillington, T.Shiu, J.-G.Shtol, D.Sibidanov, A.Simon, F.Singh, J. B.Skorupa, J.Sobie, R. J.Sobotzik, M.Soffer, A.Sokolov, A.Solovieva, E.Spataro, S.Spruck, B.Starič, M.Stavroulakis, P.Stefkova, S.Stottler, Z. S.Stroili, R.Strube, J.Sumihama, M.Sumisawa, K.Sutcliffe, W.Svidras, H.Takahashi, M.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Thaller, A.Tittel, O.Tiwary, R.Tonelli, D.Torassa, E.Toutounji, N.Trabelsi, K.Tsaklidis, I.Uchida, M.Ueda, I.Uehara, S.Uematsu, Y.Uglov, T.Unger, K.Unno, Y.Uno, K.Uno, S.Urquijo, P.Ushiroda, Y.Vahsen, S. E.van Tonder, R.Varner, G. S.Varvell, K. E.Vinokurova, A.Vismaya, V. S.Vitale, L.Vobbilisetti, V.Volpe, R.Wach, B.Wakai, M.Wallner, S.Wang, D.Wang, E.Wang, M.-Z.Wang, Z.Warburton, A.Watanabe, M.Watanuki, S.Welsch, M.Wessel, C.Xu, X. P.Yabsley, B. D.Yamada, S.Yan, W.Yang, S. B.Yin, J. H.Yoshihara, K.Yuan, C. Z.Zani, L.Zhang, Y.Zhilich, V.Zhou, J. S.Zhou, Q. D.Zhukova, V. I.Žlebčík, R.
Source
Journal of High Energy Physics. 2024(5)
Subject
B Physics
CKM Angle Gamma
CP Violation
e+-e− Experiments
Language
English
ISSN
1029-8479
Abstract
Abstract: We report results from a study of B±→ DK± decays followed by D decaying to the CP-even final state K+K and CP-odd final state KS0π0D¯0BB¯BB¯AARRAA, where D is an admixture of D0 and KS0π0D¯0BB¯BB¯AARRAA states. These decays are sensitive to the Cabibbo-Kobayashi-Maskawa unitarity-triangle angle ϕ3. The results are based on a combined analysis of the final data set of 772 × 106KS0π0D¯0BB¯BB¯AARRAA pairs collected by the Belle experiment and a data set of 198 × 106KS0π0D¯0BB¯BB¯AARRAA pairs collected by the Belle II experiment, both in electron-positron collisions at the Υ(4S) resonance. We measure the CP asymmetries to be KS0π0D¯0BB¯BB¯AARRAACP+ = (+12.5 ± 5.8 ± 1.4)% and KS0π0D¯0BB¯BB¯AARRAACP− = (−16.7 ± 5.7 ± 0.6)%, and the ratios of branching fractions to be KS0π0D¯0BB¯BB¯AARRAACP+ = 1.164 ± 0.081 ± 0.036 and KS0π0D¯0BB¯BB¯AARRAACP− = 1.151 ± 0.074 ± 0.019. The first contribution to the uncertainties is statistical, and the second is systematic. The asymmetries KS0π0D¯0BB¯BB¯AARRAACP+ and KS0π0D¯0BB¯BB¯AARRAACP− have similar magnitudes and opposite signs; their difference corresponds to 3.5 standard deviations. From these values we calculate 68.3% confidence intervals of (8.5° < ϕ3 < 16.5°) or (84.5° < ϕ3 < 95.5°) or (163.3° < ϕ3 < 171.5°) and 0.321 < rB < 0.465.