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Measurement of the branching fraction and <i>CP</i> asymmetry for <i>B</i> → (<i>D</i>)over-bar<SUP>0</SUP>π decaysopen access

Authors
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.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chang, M. -CChekelian, 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.Dolezal, Z.V. Dong, T.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.Villanueva, M. HernandezHou, 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.Kodys, P.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.Krizan, 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.Staric, 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.
Issue Date
Apr-2022
Publisher
AMER PHYSICAL SOC
Citation
Physical Review D, v.105, no.7
Indexed
SCIE
SCOPUS
Journal Title
Physical Review D
Volume
105
Number
7
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/71736
DOI
10.1103/PhysRevD.105.072007
ISSN
2470-0010
2470-0029
Abstract
We measure the branching fractions and CP asymmetries for the decays B-0 -> (D) over bar (0)pi(0) and B+ -> (D) over bar (0)pi(+), using a data sample of 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. The branching fractions obtained and direct CP asymmetries are B(B-0 -> (D) over bar (0)pi(0)) = [2.70 +/- 0.06(stat) +/- 0.10(syst)] x 10(-4), B(B+ -> (D) over bar (0)pi+) = [4.53 +/- 0.02(stat) +/- 0.15(syst)] x 10(-3), A(CP)(B-0 -> (D) over bar (0)pi(0)) = [+/- 0.42 +/- 2.05(stat) +/- 1.22(syst)]%, and A(CP)((D) over bar (0)pi(+)) = [+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 A(CP)((D) over bar (0)pi(+)). The measurement of A(CP) for B-0 -> (D) over bar (0)pi(0) is the first for this mode, and the value is consistent with Standard Model expectations.
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