Study of tau(-) -> K-s pi(-) upsilon(tau) decay at Belleopen access
- Authors
- 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.-E; Chen, W. T.; Cheon, Byung Gu; Chiang, 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.
- Issue Date
- Oct-2007
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- tau; K-*
- Citation
- PHYSICS LETTERS B, v.654, no.3-4, pp.65 - 73
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICS LETTERS B
- Volume
- 654
- Number
- 3-4
- Start Page
- 65
- End Page
- 73
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179521
- DOI
- 10.1016/j.physletb.2007.08.045
- ISSN
- 0370-2693
- Abstract
- 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.
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