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Observation of B-+/-->psi(2S)pi(+/-) and search for direct CP violation

Authors
Bhardwaj, V.Kumar, R.Singh, J. B.Adachi, I.Aihara, H.Arinstein, K.Aushev, T.Aziz, T.Bahinipati, S.Bakich, A. M.Balagura, V.Barberio, E.Bay, A.Belous, K.Bitenc, U.Bondar, A.Bozek, A.Bracko, M.Brodzicka, J.Browder, T. E.Chang, M. -C.Chang, P.Chen, A.Cheon, B. G.Chistov, R.Cho, I. -S.Choi, S. -K.Choi, Y.Dalseno, J.Dash, M.Drutskoy, A.Eidelman, S.Goldenzweig, P.Golob, B.Ha, H.Hara, T.Hayasaka, K.Hayashii, H.Hazumi, M.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, M.Iwasaki, Y.Joshi, N. J.Kah, D. H.Kang, J. H.Katayama, N.Kawai, H.Kawasaki, T.Kichimi, H.Kim, H. O.Kim, S. K.Kim, Y. I.Kim, Y. J.Kinoshita, K.Korpar, S.Krizan, P.Krokovny, P.Kuzmin, A.Kwon, Y. -J.Kyeong, S. -H.Lange, J. S.Lee, J. S.Lin, S. -W.Liu, C.Liu, Y.Liventsev, D.Mandl, F.Matyja, A.McOnie, S.Medvedeva, T.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mizuk, R.Moloney, G. R.Nagasaka, Y.Nakao, M.Natkaniec, Z.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Okuno, S.Olsen, S. L.Ozaki, H.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Park, H. K.Peak, L. S.Pestotnik, R.Piilonen, L. E.Sahoo, H.Sakai, Y.Schneider, O.Schuemann, J.Schwanda, C.Schwartz, A. J.Senyo, K.Sevior, M. E.Shapkin, M.Shen, C. P.Shiu, J. -G.Shwartz, B.Somov, A.Stanic, S.Staric, M.Sumiyoshi, T.Suzuki, S.Tamura, N.Tanaka, M.Taylor, G. N.Teramoto, Y.Trabelsi, K.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Varner, G.Varvell, K. E.Vervink, K.Wang, C. C.Wang, C. H.Wang, M. -Z.Wang, P.Wang, X. L.Watanabe, Y.Won, E.Yamashita, Y.Yamauchi, M.Zhang, C. C.Zhulanov, V.Zivko, T.Zupanc, A.Zyukova, O.
Issue Date
9월-2008
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.78, no.5
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
78
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122807
DOI
10.1103/PhysRevD.78.051104
ISSN
1550-7998
Abstract
We report the first observation of B-+/- -> psi(2S)pi(+/-), a Cabibbo- and color-suppressed decay. This analysis is based on 657 x 10(6) B (B) over bar B events collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. The measured branching fraction is (2.44 +/- 0.22 +/- 0.20) x 10(-5) and the charge asymmetry is A = 0.022 +/- 0.085 +/- 0.016. The ratio of the branching fractions B(B-+/- -> psi(2S)pi(+/-))/B(B-+/- -> psi(2S)K-+/-) = (3.99 +/- 0.36 +/- 0.17)% is also determined.
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