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Search for CP Violation in tau(+/-) -> K-S(0)pi(+/-)nu(tau) Decays at Belleopen access

Authors
Bischofberger, M[Bischofberger, M.]Hayashii, H[Hayashii, H.]Adamczyk, K[Adamczyk, K.]Aihara, H[Aihara, H.]Aulchenko, V[Aulchenko, V.]Bakich, AM[Bakich, A. M.]Balagura, V[Balagura, V.]Barberio, E[Barberio, E.]Belous, K[Belous, K.]Bozek, A[Bozek, A.]Bracko, M[Bracko, M.]Browder, TE[Browder, T. E.]Chen, P[Chen, P.]Cheon, BG[Cheon, B. G.]Chiang, CC[Chiang, C. -C.]Cho, IS[Cho, I. -S.]Cho, K[Cho, K.]Choi, Y[Choi, Y.]Danilov, M[Danilov, M.]Dolezal, Z[Dolezal, Z.]Drutskoy, A[Drutskoy, A.]Eidelman, S[Eidelman, S.]Epifanov, D[Epifanov, D.]Golob, B[Golob, B.]Ha, H[Ha, H.]Haba, J[Haba, J.]Hayasaka, K[Hayasaka, K.]Horii, Y[Horii, Y.]Hoshi, Y[Hoshi, Y.]Hou, WS[Hou, W. -S.]Hsiung, YB[Hsiung, Y. B.]Hyun, HJ[Hyun, H. J.]Inami, K[Inami, K.]Ishikawa, A[Ishikawa, A.]Itoh, R[Itoh, R.]Iwabuchi, M[Iwabuchi, M.]Iwasaki, Y[Iwasaki, Y.]Julius, T[Julius, T.]Kang, JH[Kang, J. H.]Kawai, H[Kawai, H.]Kawasaki, T[Kawasaki, T.]Kiesling, C[Kiesling, C.]Kim, HO[Kim, H. O.]Kim, MJ[Kim, M. J.]Kim, YJ[Kim, Y. J.]Kinoshita, K[Kinoshita, K.]Ko, BR[Ko, B. R.]Kodys, P[Kodys, P.]Krizan, P[Krizan, P.]Kwon, YJ[Kwon, Y. -J.]Kyeong, SH[Kyeong, S. -H.]Lange, JS[Lange, J. S.]Lee, MJ[Lee, M. J.]Lee, SH[Lee, S. -H.]Li, J[Li, J.]Li, Y[Li, Y.]Liu, C[Liu, C.]Louvot, R[Louvot, R.]MacNaughton, J[MacNaughton, J.]McOnie, S[McOnie, S.]Miyabayashi, K[Miyabayashi, K.]Miyata, H[Miyata, H.]Miyazaki, Y[Miyazaki, Y.]Mizuk, R[Mizuk, R.]Mohanty, GB[Mohanty, G. B.]Moll, A[Moll, A.]Mori, T[Mori, T.]Nagasaka, Y[Nagasaka, Y.]Nakano, E[Nakano, E.]Nakao, M[Nakao, M.]Nakazawa, H[Nakazawa, H.]Nishida, S[Nishida, S.]Nishimura, K[Nishimura, K.]Nitoh, O[Nitoh, O.]Ohshima, T[Ohshima, T.]Okuno, S[Okuno, S.]Pakhlova, G[Pakhlova, G.]Park, H[Park, H.]Park, HK[Park, H. K.]Petric, M[Petric, M.]Piilonen, LE[Piilonen, L. E.]Rohrken, M[Roehrken, M.]Ryu, S[Ryu, S.]Sahoo, H[Sahoo, H.]Sakai, Y[Sakai, Y.]Schneider, O[Schneider, O.]Schwanda, C[Schwanda, C.]Senyo, K[Senyo, K.]Shapkin, M[Shapkin, M.]Shiu, JG[Shiu, J. -G.]Shwartz, B[Shwartz, B.]Simon, F[Simon, F.]Smerkol, P[Smerkol, P.]Sohn, YS[Sohn, Y. -S.]Stanic, S[Stanic, S.]Staric, M[Staric, M.]Sumiyoshi, T[Sumiyoshi, T.]Teramoto, Y[Teramoto, Y.]Trabelsi, K[Trabelsi, K.]Uehara, S[Uehara, S.]Uglov, T[Uglov, T.]Uno, S[Uno, S.]Varner, G[Varner, G.]Vinokurova, A[Vinokurova, A.]Vossen, A[Vossen, A.]Wang, CH[Wang, C. H.]Wang, P[Wang, P.]Watanabe, M[Watanabe, M.]Watanabe, Y[Watanabe, Y.]Won, E[Won, E.]Yamamoto, H[Yamamoto, H.]Yamashita, Y[Yamashita, Y.]Yuan, CZ[Yuan, C. Z.]Zhou, P[Zhou, P.]Zhulanov, V[Zhulanov, V.]Zivko, T[Zivko, T.]
Issue Date
23-Sep-2011
Citation
PHYSICAL REVIEW LETTERS, v.107, no.13
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW LETTERS
Volume
107
Number
13
URI
https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/68907
DOI
10.1103/PhysRevLett.107.131801
ISSN
0031-9007
Abstract
We report on a search for CP violation in tau(+/-) -> K-S(0)pi(+/-)nu(tau) 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)pi(+/-) 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(eta(S)) are given at the 90% confidence level. These limits are |Im(eta(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.
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