Search for CP violation in τ±→K(S)0π±ντ decays at Belle.

Published

Journal Article

We report on a search for CP violation in τ(±)→K(S)(0)π(±)ν(τ) decays using a data sample of 699 fb(-1) collected by the Belle experiment at the KEKB electron-positron asymmetric-energy collider. The CP asymmetry is measured in four bins of the invariant mass of the K(S)(0)π(±) system and found to be compatible with zero with a precision of O(10(-3)) in each mass bin. Limits for the CP violation parameter Im(η(S)) are given at the 90% confidence level. These limits are |Im(η(S))| < 0.026 or better, depending on the parametrization used to describe the hadronic form factors, and improve upon previous limits by 1 order of magnitude.

Full Text

Duke Authors

Cited Authors

  • Bischofberger, M; Hayashii, H; Adamczyk, K; Aihara, H; Aulchenko, V; Bakich, AM; Balagura, V; Barberio, E; Belous, K; Bozek, A; Bračko, M; Browder, TE; Chen, P; Cheon, BG; Chiang, C-C; Cho, I-S; Cho, K; Choi, Y; Danilov, M; Doležal, Z; Drutskoy, A; Eidelman, S; Epifanov, D; Golob, B; Ha, H; Haba, J; Hayasaka, K; Horii, Y; Hoshi, Y; Hou, W-S; Hsiung, YB; Hyun, HJ; Inami, K; Ishikawa, A; Itoh, R; Iwabuchi, M; Iwasaki, Y; Julius, T; Kang, JH; Kawai, H; Kawasaki, T; Kiesling, C; Kim, HO; Kim, MJ; Kim, YJ; Kinoshita, K; Ko, BR; Kodyš, P; Križan, P; Kwon, Y-J; Kyeong, S-H; Lange, JS; Lee, MJ; Lee, S-H; Li, J; Li, Y; Liu, C; Louvot, R; MacNaughton, J; McOnie, S; Miyabayashi, K; Miyata, H; Miyazaki, Y; Mizuk, R; Mohanty, GB; Moll, A; Mori, T; Nagasaka, Y; Nakano, E; Nakao, M; Nakazawa, H; Nishida, S; Nishimura, K; Nitoh, O; Ohshima, T; Okuno, S; Pakhlova, G; Park, H; Park, HK; Petrič, M; Piilonen, LE; Röhrken, M; Ryu, S; Sahoo, H; Sakai, Y; Schneider, O; Schwanda, C; Senyo, K; Shapkin, M; Shiu, J-G; Shwartz, B; Simon, F; Smerkol, P; Sohn, Y-S; Stanič, S; Starič, M; Sumiyoshi, T; Teramoto, Y; Trabelsi, K; Uehara, S; Uglov, T; Uno, S; Varner, G; Vinokurova, A; Vossen, A; Wang, CH; Wang, P; Watanabe, M; Watanabe, Y; Won, E; Yamamoto, H; Yamashita, Y; Yuan, CZ; Zhou, P; Zhulanov, V; Zivko, T; Belle Collaboration,

Published Date

  • September 23, 2011

Published In

Volume / Issue

  • 107 / 13

Start / End Page

  • 131801 -

PubMed ID

  • 22026842

Pubmed Central ID

  • 22026842

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.107.131801

Language

  • eng