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Measurement of time-dependent CP violation parameters in B0 → KS0 KS0 KS0 decays at Belle

Authors
Kang, K.H.Park, H.Higuchi, T.Miyabayashi, K.Sumisawa, K.Adachi, I.Ahn, J.K.Aihara, H.Al, Said S.Asner, D.M.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Bahinipati, S.Bakich, A.M.Behera, P.Beleño, C.Bennett, J.Bhardwaj, V.Bilka, T.Biswal, J.Bonvicini, G.Bozek, A.Bračko, M.Browder, T.E.Campajola, M.Cao, L.Červenkov, D.Chang, M.-C.Chekelian, V.Chen, A.Cheon, B.G.Chilikin, K.Cho, K.Choi, S.-K.Choi, Y.Cinabro, D.Cunliffe, S.Dash, N.De, Nardo G.DoleŽal, Z.Dong, T.V.Eidelman, S.Fast, J.E.Ferber, T.Fulsom, B.G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Golob, B.Greenwald, D.Guan, Y.Hartbrich, O.Hayasaka, K.Hayashii, H.Hernandez, Villanueva M.Hou, W.-S.Hsu, C.-L.Inami, K.Inguglia, G.Ishikawa, A.Iwasaki, M.Iwasaki, Y.Jacobs, W.W.Jang, E.-J.Jeon, H.B.Jia, S.Jin, Y.Joo, K.K.Kaliyar, A.B.Karyan, G.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, C.H.Kim, D.Y.Kim, K.-H.Kim, S.H.Kim, Y.-K.Kinoshita, K.Kodyš, P.Korpar, S.Kotchetkov, D.KriŽan, P.Kroeger, R.Krokovny, P.Kulasiri, R.Kumar, R.Kuzmin, A.Kwon, Y.-J.Lange, J.S.Lee, I.S.Lee, S.C.Li, J.Li, L.K.Li, Y.B.Li, Gioi L.Libby, J.Lieret, K.Liventsev, D.Macnaughton, J.Macqueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyata, H.Mizuk, R.Mohanty, G.B.Moon, T.J.Mori, T.Morii, T.Mrvar, M.Mussa, R.Nakao, M.Nakazawa, H.Natkaniec, Z.Nayak, M.Nisar, N.K.Nishida, S.Nishimura, K.Ogawa, K.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Park, S.-H.Patra, S.Paul, S.Pedlar, T.K.Pestotnik, R.Piilonen, L.E.Podobnik, T.Popov, V.Prencipe, E.Prim, M.T.Purohit, M.V.Ritter, M.Röhrken, M.Rostomyan, A.Rout, N.Rozanska, M.Russo, G.Sahoo, D.Sakai, Y.Sandilya, S.Sangal, A.Santelj, L.Sanuki, T.Savinov, V.Schnell, G.Schueler, J.Schwanda, C.Schwartz, A.J.Seino, Y.Senyo, K.Sevior, M.E.Shapkin, M.Shebalin, V.Shiu, J.-G.Solovieva, E.Stanič, S.Starič, M.Stottler, Z.S.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Varner, G.Vinokurova, A.Vorobyev, V.Wang, C.H.Wang, E.Wang, M.-Z.Wang, P.Wang, X.L.Watanuki, S.Won, E.Xu, X.Yabsley, B.D.Yan, W.Yang, S.B.Ye, H.Yin, J.H.Yuan, C.Z.Yusa, Y.Zhang, Z.P.Zhilich, V.Zhukova, V.Zhulanov, V.(Belle Collaboration)
Issue Date
8-Feb-2021
Publisher
American Physical Society
Citation
Physical Review D, v.103, no.3
Journal Title
Physical Review D
Volume
103
Number
3
URI
http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/40622
DOI
10.1103/PhysRevD.103.032003
ISSN
2470-0010
Abstract
We measure the time-dependent CP violation parameters in B0→KS0KS0KS0 decays using 772×106BB¯ pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The obtained mixing-induced and direct CP asymmetries are -0.71±0.23 (stat)±0.05 (syst) and 0.12±0.16 (stat)±0.05 (syst), respectively. These values are consistent with the Standard Model predictions. The significance of CP violation differs from zero by 2.5 standard deviations. © 2021 authors. Published by the American Physical Society.
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