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

  • Bhardwaj, V.
  • Kumar, R.
  • Singh, J. B.
  • Adachi, I.
  • Aihara, H.
  • ... Cheon, Byung Gu
  • 외 139명
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초록

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.

제목
Observation of B-+/-->psi(2S)pi(+/-) and search for direct CP violation
저자
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, Byung GuChistov, 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.
DOI
10.1103/PhysRevD.78.051104
발행일
2008-09
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
78
5
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