Study of tau(-) -> K-s pi(-) upsilon(tau) decay at Belle

  • Epifanov, D.
  • Adachi, I.
  • Aihara, H.
  • Arinstein, K.
  • Aulchenko, V.
  • ... Cheon, Byung Gu
  • 외 149명
Citations

WEB OF SCIENCE

129
Citations

SCOPUS

159

초록

We present a study of the decay tau(-) -> K-S,pi(-) nu(tau) using a 351 fb(-1) data sample collected with the Belle detector. The analysis is based on 53. 110 lepton-tagged signal events. The measured branching fraction Beta(tau(-) -> K-s pi(-)nu(tau)) = (0.404 +/- 0.002(stat.) +/- 0.013(syst.))% is consistent with the world average value and has better accuracy. An analysis of the K-S pi(-) invariant mass spectrum reveals contributions from the K*(892)(-)as well as other states. For the first time the K*(892)(-) mass and width have been measured in tau decay: M(K*(892)(-)) = (895.47 +/- 0.20(stat.) +/- 0.44(syst.) +/- 0.59(mod.)) MeV/c(2), Gamma(K*(892)(-)) = (46.2 +/- 0.6(stat.) +/- 1.0(syst.) +/- 0.7(mod.)) MeV. The K*(892)(-) mass is significantly different from the current world average value.

키워드

tauK-*PRONG TAU-DECAYSKAONSIDENTIFICATIONSCATTERINGMESONSLEPTONKEKBMASS
제목
Study of tau(-) -> K-s pi(-) upsilon(tau) decay at Belle
저자
Epifanov, D.Adachi, I.Aihara, H.Arinstein, K.Aulchenko, V.Aushev, T.Bakich, A. M.Balagura, V.Barberio, E.Bedny, I.Belous, K.Bitenc, U.Bizjak, I.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Chao, Y.Chen, A.Chen, K.-EChen, W. T.Cheon, Byung GuChiang, C.-C.Chistov, R.Cho, I.-S.Choi, Y.Choi, Y. K.Dalseno, J.Dash, M.Drutskoy, A.Eidelman, S.Gokhroo, G.Golob, B.Ha, H.Haba, J.Hayasaka, K.Hayashii, H.Hazumi, M.Heffernan, D.Hokuue, T.Hoshi, Y.Hou, W.-S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Ikado, K.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Kah, D. H.Kaji, H.Kang, J. H.Kawai, H.Kawasaki, T.Kichimi, H.Kim, H. O.Kim, S. K.Kim, Y. J.Krizan, P.Krokovny, P.Kumar, R.Kuo, C. C.Kuzmin, A.Kwon, Y-J.Lee, J. S.Lee, M. J.Lee, S. E.Lesiak, T.Li, J.Limosani, A.Lin, S.-W.Liu, Y.Liventsev, D.Mandl, F.Marlow, D.Matsumoto, T.Matyja, A.McOnie, S.Medvedeva, T.Miyata, H.Miyazaki, Y.Mizuk, R.Moloney, G. R.Mori, T.Nakano, E.Nakao, M.Nakazawa, H.Natkaniec, Z.Nishida, S.Nitoh, O.Ogawa, S.Ohshima, T.Onuki, Y.Ostrowicz, W.Ozaki, H.Pakhlov, P.Pakhlova, G.Palka, H.Park, C. W.Park, H.Park, K. S.Peak, L. S.Pestotnik, R.Piilonen, L. E.Poluektov, A.Sahoo, H.Sakai, Y.Schneider, O.Seidl, R.Senyo, K.Sevior, M. E.Shapkin, M.Shibuya, H.Shwartz, B.Sokolov, A.Somov, A.Soni, N.Stanic, S.Staric, M.Stoeck, H.Sumiyoshi, T.Takasaki, F.Tamai, K.Tanaka, M.Taylor, G. N.Teramoto, Y.Tian, X. C.Tikhomirov, I.Tsuboyama, T.Uehara, S.Ueno, K.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Varner, G.Vervink, K.Villa, S.Vinokurova, A.Wang, C. H.Wang, P.Watanabe, Y.Wedd, R.Won, E.Yabsley, B. D.Yamaguchi, A.Yamashita, Y.Yamauchi, M.Yuan, C. Z.Zhang, Z. P.Zhilich, V.Zupanc, A.
DOI
10.1016/j.physletb.2007.08.045
발행일
2007-10
유형
Article
저널명
PHYSICS LETTERS B
654
3-4
페이지
65 ~ 73

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