Measurement of Gamma(5S) decays to B-0 and B+ mesons

  • Drutskoy, A.
  • Adachi, I.
  • Aihara, H.
  • Aulchenko, V.
  • Aushev, T.
  • ... Cheon, B. G.
  • 외 116명
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초록

Decays of the Gamma(5S) resonance to channels with B+ and B-0 mesons are studied using a 23.6 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. Fully reconstructed B+ -> J/psi K+, B-0 -> J/psi K-*0, B+ ->(D) over bar (0)pi(+), and B-0 -> D-pi(+) decays are used to obtain the charged and neutral B production rates per b (b) over bar event, f(B+) = (72.1(-3.8)(+3.9) +/- 5.0)% and f(B-0) = (77.0(-5.6)(+5.8) +/- 6.1)%. Assuming equal rates to B+ and B-0 mesons in all channels produced at the Gamma(5S) energy, we measure the fractions for transitions to two-body and three-body channels with B meson pairs, f(B (B) over bar) = (5.5(-0.9)(+1.0) +/- 0.4)%, f(B (B) over bar* + B*(B) over bar) = (13.7 +/- 1.3 +/- 1.1)%, f(B*(B) over bar*) = (37.5(-1.9)(+2.1) +/- 3.0)%, f(B (B) over bar) = (5.5(-0.9)(+1.0) +/- 0.4)%, f(B (B) over bar* + B*(B) over bar) = (13.7 +/- 1.3 +/- 1.1)%, f(B*(B) over bar*) = (37.5(-1.9)(+2.1) +/- 3.0)%, f(B (B) over bar pi) = (0.0 +/-1.2 +/- 0.3)%, f(B (B) over bar*pi + B*(B) over bar pi) = (7.3(-2.1)(+2.3) +/- 0.8)%, and f(B*(B) over bar*pi) = (1.0(-1.3)(+1.4) +/- 0.4)%. The latter three fractions are obtained assuming isospin conservation.

키워드

IDENTIFICATION
제목
Measurement of Gamma(5S) decays to B-0 and B+ mesons
저자
Drutskoy, A.Adachi, I.Aihara, H.Aulchenko, V.Aushev, T.Bakich, A. M.Balagura, V.Bhardwaj, V.Bischofberger, M.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Chao, Y.Chen, A.Chen, P.Cheon, B. G.Choi, S. -K.Choi, Y.Dalseno, J.Danilov, M.Dolezal, Z.Dungel, W.Eidelman, S.Gabyshev, N.Golob, B.Ha, H.Haba, J.Hayashii, H.Horii, Y.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Inami, K.Itoh, R.Iwabuchi, M.Iwasaki, Y.Julius, T.Kah, D. H.Kang, J. H.Katayama, N.Kichimi, H.Kiesling, C.Kim, H. J.Kim, H. O.Kim, M. J.Kinoshita, K.Ko, B. R.Korpar, S.Krokovny, P.Kumita, T.Kuzmin, A.Kwon, Y. -J.Kyeong, S. -H.Lange, J. S.Lee, S. -H.Li, J.Liu, C.Liventsev, D.Louvot, R.Matyja, A.McOnie, S.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mohanty, G. B.Mori, T.Mussa, R.Nagasaka, Y.Nakao, M.Natkaniec, Z.Nishida, S.Nitoh, O.Ohshima, T.Okuno, S.Olsen, S. L.Pakhlova, G.Park, H.Park, H. K.Pestotnik, R.Petric, M.Piilonen, L. E.Poluektov, A.Ryu, S.Sakai, Y.Schneider, O.Schwanda, C.Schwartz, A. J.Senyo, K.Sevior, M. E.Shapkin, M.Shen, C. P.Shiu, J. -G.Shwartz, B.Simon, F.Smerkol, P.Stanic, S.Staric, M.Sumisawa, K.Sumiyoshi, T.Teramoto, Y.Trabelsi, K.Tsuboyama, T.Unno, Y.Uno, S.Usov, Y.Varner, G.Varvell, K. E.Vervink, K.Wang, M. -Z.Wang, P.Watanabe, Y.Wicht, J.Won, E.Yabsley, B. D.Yamashita, Y.Zhang, Z. P.Zhulanov, V.Zivko, T.Zupanc, A.
DOI
10.1103/PhysRevD.81.112003
발행일
2010-06
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
81
11
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