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Measurement of CP asymmetries in B0 → φKs0 decays with Belle IIopen access

Authors
Adachi, I.Adamczyk, K.Aggarwal, L.Ahmed, H.Aihara, H.Akopov, N.Aloisio, A.Ky, N. AnhAsner, D. M.Atmacan, H.Aushev, T.Aushev, V.Aversano, M.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.Bennett, J. V.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.Bracko, 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.Chen, C.Cheon, B. G.Chilikin, K.Chirapatpimol, K.Cho, H. -E.Cho, K.Cho, S. -J.Choi, S. -K.Choudhury, S.Cochran, J.Corona, L.Cremaldi, L. M.Das, S.Dattola, F.De La Cruz-Burelo, E.De La Motte, S. A.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.Dolezal, Z.Jimenez, I. DominguezDong, T. V.Dorigo, M.Dort, K.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.Garmash, A.Gaudino, G.Gaur, V.Gaz, A.Gellrich, A.Ghevondyan, G.Ghosh, D.Ghumaryan, H.Giakoustidis, G.Giordano, R.Giri, A.Glazov, A.Gobbo, B.Godang, R.Gogota, O.Goldenzweig, P.Gradl, W.Grammatico, T.Granderath, S.Graziani, E.Greenwald, D.Gruberova, Z.Gu, T.Guan, Y.Gudkova, K.Halder, S.Han, Y.Hara, K.Hara, T.Hayasaka, K.Hayashii, H.Hazra, S.Hearty, C.Hedges, M. T.de la Cruz, I. HerediaVillanueva, M. HernandezHershenhorn, A.Higuchi, T.Hill, E. C.Hoek, M.Hohmann, M.Horak, P.Hsu, C. -L.Humair, T.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.Joo, K. K.Junkerkalefeld, H.Kaliyar, A. B.Kandra, J.Kang, K. H.Kang, S.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.Kodys, P.Koga, T.Kohani, S.Kojima, K.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.Kowalewski, R.Kraetzschmar, T. M. G.Krizan, P.Krokovny, P.Kulii, Y.Kuhr, T.Kumar, M.Kumara, K.Kunigo, T.Kuzmin, A.Kwon, Y. -J.Lacaprara, S.Lai, Y. -T.Lam, T.Lanceri, L.Lange, J. S.Laurenza, M.Lautenbach, K.Leboucher, R.Le Diberder, F. R.Lee, M. J.Leitl, P.Levit, D.Lewis, P. M.Li, C.Li, L. K.Libby, J.Liu, Q. Y.Liu, Z. Q.Liventsev, D.Longo, S.Lozar, A.Lueck, 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.Matsuoka, K.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.Nakao, M.Nakazawa, Y.Charan, A. NarimaniNaruki, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Nazaryan, G.Niebuhr, C.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.Polat, L.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.Sanders, D. A.Sandilya, S.Sangal, A.Santelj, L.Sato, Y.Savinov, V.Scavino, B.Schmitt, C.Schnepf, M.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.Shwartz, B.Sibidanov, A.Simon, F.Singh, J. B.Skorupa, J.Sobie, R. J.Sobotzik, M.Soffer, A.Sokolov, A.Solovieva, E.Spataro, S.Spruck, B.Staric, 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.Tanaka, S.Tanida, K.Tanigawa, H.Tenchini, F.Thaller, A.Tittel, O.Tiwary, R.Tonelli, D.Torassa, E.Toutounji, N.Trabelsi, K.Tsaklidis, I.Uchida, M.Ueda, I.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.Veronesi, M.Vinokurova, A.Vismaya, V. S.Vitale, L.Vobbilisetti, V.Volpe, R.Wach, B.Wakai, M.Wakeling, H. M.Wallner, S.Wang, E.Wang, M. -Z.Wang, Z.Warburton, A.Watanabe, M.Watanuki, S.Welsch, M.Wessel, C.Won, E.Xu, X. P.Yabsley, B. D.Yamada, S.Yan, W.Yang, S. B.Yin, J. H.Yoshihara, K.Yuan, C. Z.Yusa, Y.Zani, L.Zhang, Y.Zhilich, V.Zhou, J. S.Zhou, Q. D.Zhukova, V. I.Belle II Collaboration
Issue Date
Oct-2023
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.108, no.7
Journal Title
PHYSICAL REVIEW D
Volume
108
Number
7
URI
https://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/49495
DOI
10.1103/PhysRevD.108.072012
ISSN
2470-0010
2470-0029
Abstract
We present a measurement of time-dependent rate asymmetries in B-0 -> phi K-s(0) decays to search for non-standard-model physics in b -> q (q) over bars transitions. The data sample is collected with the Belle II detector at the SuperKEKB asymmetric-energy e(+)e(-) collider in 2019-2022 and contains (387 +/- 6) x 10(6) bottomantibottom mesons from gamma(4S) resonance decays. We reconstruct 162 +/- 17 signal events and extract the charge-parity (CP) violating parameters from a fit to the distribution of the proper-decay-time difference of the two B mesons. The measured direct and mixing-induced CP asymmetries are C = -0.31 +/- 0.20 +/- 0.05 and S = 0.54 +/- 0.26(-0.08)(+0.06), respectively, where the first uncertainties are statistical and the second are systematic. The results are compatible with the CP asymmetries observed in b -> c (c) over bars transitions.
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