Measurement of the branching fraction and CP asymmetry for B → D ¯ 0π decays

  • Bloomfield, T.
  • Sevior, M.E.
  • Adachi, I.
  • Aihara, H.
  • Al, Said S.
  • ... Cheon, B.G.
  • 외 208명
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3

초록

We measure the branching fractions and CP asymmetries for the decays B0→D¯0π0 and B+→D¯0π+, using a data sample of 772×106 BB¯ pairs collected at the (4S) resonance with the Belle detector at the KEKB e+e- collider. The branching fractions obtained and direct CP asymmetries are B(B0→D¯0π0)=[2.70±0.06(stat)±0.10(syst)]×10-4, B(B+→D¯0π+)=[4.53±0.02(stat)±0.15(syst)]×10-3, ACP(B0→D¯0π0)=[+0.42±2.05(stat)±1.22(syst)]%, and ACP(B+→D¯0π+)=[+0.19±0.36(stat)±0.57(syst)]%. The measurements of B are the most precise to date and are in good agreement with previous results, as is the measurement of ACP(B+→D¯0π+). The measurement of ACP for B0→D¯0π0 is the first for this mode, and the value is consistent with Standard Model expectations.

제목
Measurement of the branching fraction and CP asymmetry for B → D ¯ 0π decays
저자
Bloomfield, T.Sevior, M.E.Adachi, I.Aihara, H.Al, Said S.Asner, D.M.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Bahinipati, S.Behera, P.Bennett, J.Bessner, M.Bilka, T.Biswal, J.Bobrov, A.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, H.E.Cho, K.Cho, S.-J.Choi, S.-K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Das, S.Dash, N.De, Nardo G.Dhamija, R.Di, Capua F.DoleŽal, Z.Dong, T.V.Dubey, S.Eidelman, S.Epifanov, D.Ferber, T.Ferlewicz, D.Fulsom, B.G.Garg, R.Gaur, V.Garmash, A.Giri, A.Goldenzweig, P.Hadjivasiliou, C.Halder, S.Hartbrich, O.Hayasaka, K.Hayashii, H.Hedges, M.T.Hernandez, Villanueva M.Hou, W.-S.Hsu, C.-L.Iijima, T.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W.W.Jang, E.-J.Jia, S.Jin, Y.Joo, C.W.Joo, K.K.Kaliyar, A.B.Kang, K.H.Karyan, G.Kawasaki, T.Kim, C.H.Kim, D.Y.Kim, H.J.Kim, S.H.Kim, Y.-K.Kimmel, T.D.Kodyš, P.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.KriŽan, P.Kroeger, R.Krokovny, P.Kumar, M.Kumar, R.Kumara, K.Kwon, Y.-J.Lalwani, K.Lange, J.S.Lee, I.S.Lee, S.C.Li, C.H.Li, J.Li, Y.B.Li, Gioi L.Libby, J.Lieret, K.Liventsev, D.Luo, T.Macqueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, G.B.Mohanty, S.Moon, H.K.Mussa, R.Nakao, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Niiyama, M.Nisar, N.K.Nishida, S.Ono, H.Onuki, Y.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Park, H.Park, S.-H.Paul, S.Pedlar, T.K.Pestotnik, R.Piilonen, L.E.Podobnik, T.Popov, V.Prencipe, E.Prim, M.T.Ritter, 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.Shapkin, M.Sharma, C.Shen, C.P.Shiu, J.-G.Shwartz, B.Simon, F.Sokolov, A.Solovieva, E.Starič, M.Stottler, Z.S.Strube, J.F.Sumihama, M.Sumisawa, K.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tanida, K.Tao, Y.Tenchini, F.Trabelsi, K.Uchida, M.Uno, K.Uno, S.Usov, Y.Vahsen, S.E.Van, Tonder R.Varner, G.Varvell, K.E.Vossen, A.Waheed, E.Wang, C.H.Wang, E.Wang, M.-Z.Wang, P.Watanabe, M.Watanuki, S.Werbycka, O.Wiechczynski, J.Won, E.Xu, X.Yabsley, B.D.Yan, W.Yang, S.B.Ye, H.Yin, J.H.Yuan, C.Z.Zhang, Z.P.Zhilich, V.Zhukova, V.Zhulanov, V.
DOI
10.1103/PhysRevD.105.072007
발행일
2022-04
유형
Article
저널명
Physical Review d
105
7
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