Search for CP violation in τ±→KS0π ±ντ decays at Belle

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

doi:10.1103/PhysRevLett.107.131801

Search for CP violation in τ^±→KS0π ^±ν_τ decays at Belle

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

School of Earth System Sciences

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Abstract

We report on a search for CP violation in τ^±→ KS0π^±ν_τ decays using a data sample of 699fb^-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 KS0π^± 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.

Original language	English
Article number	131801
Journal	Physical Review Letters
Volume	107
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.107.131801
State	Published - 23 Sep 2011

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10.1103/PhysRevLett.107.131801

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Bischofberger, M., Hayashii, H., Adamczyk, K., Aihara, H., Aulchenko, V., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bozek, A., Bračko, M., Browder, T. E., Chen, P., Cheon, B. G., Chiang, C. C., Cho, I. S., Cho, K., Choi, Y., Danilov, M., ... Zivko, T. (2011). Search for CP violation in τ^±→KS0π ^±ν_τ decays at Belle. Physical Review Letters, 107(13), Article 131801. https://doi.org/10.1103/PhysRevLett.107.131801

@article{7e2aeedbcab24e758aa274f797939022,

title = "Search for CP violation in τ±→KS0π ±ντ decays at Belle",

abstract = "We report on a search for CP violation in τ±→ KS0π±ντ decays using a data sample of 699fb-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 KS0π± 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(ηS) are given at the 90% confidence level. These limits are |Im(ηS)|<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.",

author = "M. Bischofberger and H. Hayashii and K. Adamczyk and H. Aihara and V. Aulchenko and Bakich, {A. M.} and V. Balagura and E. Barberio and K. Belous and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and P. Chen and Cheon, {B. G.} and Chiang, {C. C.} and Cho, {I. S.} and K. Cho and Y. Choi and M. Danilov and Z. Dole{\v z}al and A. Drutskoy and S. Eidelman and D. Epifanov and B. Golob and H. Ha and J. Haba and K. Hayasaka and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Julius and Kang, {J. H.} and H. Kawai and T. Kawasaki and C. Kiesling and Kim, {H. O.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and P. Kody{\v s} and P. Kri{\v z}an and Kwon, {Y. J.} and Kyeong, {S. H.} and Lange, {J. S.} and Lee, {M. J.} and Lee, {S. H.} and J. Li and Y. Li and C. Liu and R. Louvot and J. MacNaughton and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and Mohanty, {G. B.} and A. Moll and T. Mori and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and S. Nishida and K. Nishimura and O. Nitoh and T. Ohshima and S. Okuno and G. Pakhlova and H. Park and Park, {H. K.} and M. Petri{\v c} and Piilonen, {L. E.} and M. R{\"o}hrken and S. Ryu and H. Sahoo and Y. Sakai and O. Schneider and C. Schwanda and K. Senyo and M. Shapkin and Shiu, {J. G.} and B. Shwartz and F. Simon and P. Smerkol and Sohn, {Y. S.} and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and Y. Teramoto and K. Trabelsi and S. Uehara and T. Uglov and S. Uno and G. Varner and A. Vinokurova and A. Vossen and Wang, {C. H.} and P. Wang and M. Watanabe and Y. Watanabe and E. Won and H. Yamamoto and Y. Yamashita and Yuan, {C. Z.} and P. Zhou and V. Zhulanov and T. Zivko",

year = "2011",

month = sep,

day = "23",

doi = "10.1103/PhysRevLett.107.131801",

language = "English",

volume = "107",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

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, CC, Cho, IS, 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, WS, 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, YJ, Kyeong, SH, Lange, JS, Lee, MJ, Lee, SH, 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, JG, Shwartz, B, Simon, F, Smerkol, P, Sohn, YS, 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 2011, 'Search for CP violation in τ^±→KS0π ^±ν_τ decays at Belle', Physical Review Letters, vol. 107, no. 13, 131801. https://doi.org/10.1103/PhysRevLett.107.131801

TY - JOUR

T1 - Search for CP violation in τ±→KS0π ±ντ decays at Belle

AU - Bischofberger, M.

AU - Hayashii, H.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Aulchenko, V.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Belous, K.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, Y.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hayasaka, K.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. O.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Križan, P.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Liu, C.

AU - Louvot, R.

AU - MacNaughton, J.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mori, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, H. K.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Senyo, K.

AU - Shapkin, M.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Uglov, T.

AU - Uno, S.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vossen, A.

AU - Wang, C. H.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Won, E.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Yuan, C. Z.

AU - Zhou, P.

AU - Zhulanov, V.

AU - Zivko, T.

PY - 2011/9/23

Y1 - 2011/9/23

N2 - We report on a search for CP violation in τ±→ KS0π±ντ decays using a data sample of 699fb-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 KS0π± 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(ηS) are given at the 90% confidence level. These limits are |Im(ηS)|<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.

AB - We report on a search for CP violation in τ±→ KS0π±ντ decays using a data sample of 699fb-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 KS0π± 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(ηS) are given at the 90% confidence level. These limits are |Im(ηS)|<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.

UR - http://www.scopus.com/inward/record.url?scp=80053190868&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.107.131801

DO - 10.1103/PhysRevLett.107.131801

M3 - Article

AN - SCOPUS:80053190868

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 131801

ER -

Search for CP violation in τ^±→KS0π ^±ν_τ decays at Belle

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