Search for lepton flavor violating τ decays into three leptons

K. Abe; I. Adachi; H. Aihara; K. Arinstein; T. Aso; V. Aulchenko; T. Aushev; T. Aziz; S. Bahinipati; A. M. Bakich; V. Balagura; Y. Ban; S. Banerjee; E. Barberio; A. Bay; I. Bedny; K. Belous; V. Bhardwaj; U. Bitenc; S. Blyth; A. Bondar; A. Bozek; M. Bracko; J. Brodzicka; T. E. Browder; M. C. Chang; P. Chang; Y. Chao; A. Chen; K. F. Chen; W. T. Chen; B. G. Cheon; C. C. Chiang; R. Chistov; I. S. Cho; S. K. Choi; Y. Choi; Y. K. Choi; S. Cole; J. Dalseno; M. Danilov; A. Das; M. Dash; J. Dragic; A. Drutskoy; S. Eidelman; D. Epifanov; S. Fratina; H. Fujii; M. Fujikawa; N. Gabyshev; A. Garmash; A. Go; G. Gokhroo; P. Goldenzweig; B. Golob; M. Grosse Perdekamp; H. Guler; H. Ha; J. Haba; K. Hara; T. Hara; Y. Hasegawa; N. C. Hastings; K. Hayasaka; H. Hayashii; M. Hazumi; D. Heffernan; T. Higuchi; L. Hinz; H. Hoedlmoser; T. Hokuue; Y. Horii; Y. Hoshi; K. Hoshina; S. Hou; W. S. Hou; Y. B. Hsiung; H. J. Hyun; Y. Igarashi; T. Iijima; K. Ikado; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwabuchi; M. Iwasaki; Y. Iwasaki; C. Jacoby; N. J. Joshi; M. Kaga; D. H. Kah; H. Kaji; S. Kajiwara; H. Kakuno; J. H. Kang; P. Kapusta; S. U. Kataoka; N. Katayama; H. Kawai; T. Kawasaki; A. Kibayashi; H. Kichimi; H. J. Kim; H. O. Kim; J. H. Kim; S. K. Kim; Y. J. Kim; K. Kinoshita; S. Korpar; Y. Kozakai; P. Krizan; P. Krokovny; R. Kumar; E. Kurihara; A. Kusaka; A. Kuzmin; Y. J. Kwon; J. S. Lange; G. Leder; J. Lee; J. S. Lee; M. J. Lee; S. E. Lee; T. Lesiak; J. Li; A. Limosani; S. W. Lin; Y. Liu; D. Liventsev; J. MacNaughton; G. Majumder; F. Mandl; D. Marlow; T. Matsumura; A. Matyja; S. McOnie; T. Medvedeva; Y. Mikami; W. Mitaroff; K. Miyabayashi; H. Miyake; H. Miyata; Y. Miyazaki; R. Mizuk; G. R. Moloney; T. Mori; J. Mueller; A. Murakami; T. Nagamine; Y. Nagasaka; Y. Nakahama; I. Nakamura; E. Nakano; M. Nakao; H. Nakayama; H. Nakazawa; Z. Natkaniec; K. Neichi; S. Nishida; K. Nishimura; Y. Nishio; I. Nishizawa; O. Nitoh; S. Noguchi; T. Nozaki; A. Ogawa; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; S. Ono; W. Ostrowicz; H. Ozaki; P. Pakhlov; G. Pakhlova; H. Palka; C. W. Park; H. Park; K. S. Park; N. Parslow; L. S. Peak; M. Pernicka; R. Pestotnik; M. Peters; L. E. Piilonen; A. Poluektov; J. Rorie; M. Rozanska; H. Sahoo; Y. Sakai; H. Sakaue; N. Sasao; T. R. Sarangi; N. Satoyama; K. Sayeed; T. Schietinger; O. Schneider; P. Schönmeier; J. Schümann; C. Schwanda; A. J. Schwartz; R. Seidl; A. Sekiya; K. Senyo; M. E. Sevior; L. Shang; M. Shapkin; C. P. Shen; H. Shibuya; S. Shinomiya; J. G. Shiu; B. Shwartz; J. B. Singh; A. Sokolov; E. Solovieva; A. Somov; S. Stanic; M. Staric; J. Stypula; A. Sugiyama; K. Sumisawa; T. Sumiyoshi; S. Suzuki; S. Y. Suzuki; O. Tajima; F. Takasaki; K. Tamai; N. Tamura; M. Tanaka; N. Taniguchi; G. N. Taylor; Y. Teramoto; I. Tikhomirov; K. Trabelsi; Y. F. Tse; T. Tsuboyama; K. Uchida; Y. Uchida; S. Uehara; K. Ueno; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Ushiroda; Y. Usov; G. Varner; K. E. Varvell; K. Vervink; S. Villa; A. Vinokurova; C. C. Wang; C. H. Wang; J. Wang; M. Z. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; R. Wedd; J. Wicht; L. Widhalm; J. Wiechczynski; E. Won; B. D. Yabsley; A. Yamaguchi; H. Yamamoto; M. Yamaoka; Y. Yamashita; M. Yamauchi; C. Z. Yuan; Y. Yusa; C. C. Zhang; L. M. Zhang; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc; N. Zwahlen

Search for lepton flavor violating τ decays into three leptons

K. Abe, I. Adachi, H. Aihara, K. Arinstein, T. Aso, V. Aulchenko, T. Aushev, T. Aziz, S. Bahinipati, A. M. Bakich, V. Balagura, Y. Ban, S. Banerjee, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. BlythA. Bondar, A. Bozek, M. Bracko, J. Brodzicka, T. E. Browder, M. C. Chang, P. Chang, Y. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, C. C. Chiang, R. Chistov, I. S. Cho, S. K. Choi, Y. Choi, Y. K. Choi, S. Cole, J. Dalseno, M. Danilov, A. Das, M. Dash, J. Dragic, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, H. Fujii, M. Fujikawa, N. Gabyshev, A. Garmash, A. Go, G. Gokhroo, P. Goldenzweig, B. Golob, M. Grosse Perdekamp, H. Guler, H. Ha, J. Haba, K. Hara, T. Hara, Y. Hasegawa, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Higuchi, L. Hinz, H. Hoedlmoser, T. Hokuue, Y. Horii, Y. Hoshi, K. Hoshina, S. Hou, W. S. Hou, Y. B. Hsiung, H. J. Hyun, Y. Igarashi, T. Iijima, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwabuchi, M. Iwasaki, Y. Iwasaki, C. Jacoby, N. J. Joshi, M. Kaga, D. H. Kah, H. Kaji, S. Kajiwara, H. Kakuno, J. H. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, A. Kibayashi, H. Kichimi, H. J. Kim, H. O. Kim, J. H. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, E. Kurihara, A. Kusaka, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, J. Lee, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, Y. Liu, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsumura, A. Matyja, S. McOnie, T. Medvedeva, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, J. Mueller, A. Murakami, T. Nagamine, Y. Nagasaka, Y. Nakahama, I. Nakamura, E. Nakano, M. Nakao, H. Nakayama, H. Nakazawa, Z. Natkaniec, K. Neichi, S. Nishida, K. Nishimura, Y. Nishio, I. Nishizawa, O. Nitoh, S. Noguchi, T. Nozaki, A. Ogawa, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, S. Ono, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, K. S. Park, N. Parslow, L. S. Peak, M. Pernicka, R. Pestotnik, M. Peters, L. E. Piilonen, A. Poluektov, J. Rorie, M. Rozanska, H. Sahoo, Y. Sakai, H. Sakaue, N. Sasao, T. R. Sarangi, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, P. Schönmeier, J. Schümann, C. Schwanda, A. J. Schwartz, R. Seidl, A. Sekiya, K. Senyo, M. E. Sevior, L. Shang, M. Shapkin, C. P. Shen, H. Shibuya, S. Shinomiya, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, E. Solovieva, A. Somov, S. Stanic, M. Staric, J. Stypula, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, N. Taniguchi, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, Y. F. Tse, T. Tsuboyama, K. Uchida, Y. Uchida, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. C. Wang, C. H. Wang, J. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, R. Wedd, J. Wicht, L. Widhalm, J. Wiechczynski, E. Won, B. D. Yabsley, A. Yamaguchi, H. Yamamoto, M. Yamaoka, Y. Yamashita, M. Yamauchi, C. Z. Yuan, Y. Yusa, C. C. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, N. Zwahlen

Department of Physics

Research output: Contribution to conference › Paper › peer-review

Abstract

We search for lepton-flavor-violating τ decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider. No evidence for these decays is observed and we set 90% confidence level upper limits on the branching fractions between 2.0 × 10^-8 and 4.1 × 10 ^-8. These results improve the best previously published upper limits by factors from 4.9 to 7.0.

Original language	English
Publication status	Published - 2007
Event	23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007 - Daegu, Korea, Republic of Duration: 2007 Aug 13 → 2007 Aug 18

Other

Other	23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007
Country/Territory	Korea, Republic of
City	Daegu
Period	07/8/13 → 07/8/18

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Abe, K., Adachi, I., Aihara, H., Arinstein, K., Aso, T., Aulchenko, V., Aushev, T., Aziz, T., Bahinipati, S., Bakich, A. M., Balagura, V., Ban, Y., Banerjee, S., Barberio, E., Bay, A., Bedny, I., Belous, K., Bhardwaj, V., Bitenc, U., ... Zwahlen, N. (2007). Search for lepton flavor violating τ decays into three leptons. Paper presented at 23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007, Daegu, Korea, Republic of.

Abe, K, Adachi, I, Aihara, H, Arinstein, K, Aso, T, Aulchenko, V, Aushev, T, Aziz, T, Bahinipati, S, Bakich, AM, Balagura, V, Ban, Y, Banerjee, S, Barberio, E, Bay, A, Bedny, I, Belous, K, Bhardwaj, V, Bitenc, U, Blyth, S, Bondar, A, Bozek, A, Bracko, M, Brodzicka, J, Browder, TE, Chang, MC, Chang, P, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chiang, CC, Chistov, R, Cho, IS, Choi, SK, Choi, Y, Choi, YK, Cole, S, Dalseno, J, Danilov, M, Das, A, Dash, M, Dragic, J, Drutskoy, A, Eidelman, S, Epifanov, D, Fratina, S, Fujii, H, Fujikawa, M, Gabyshev, N, Garmash, A, Go, A, Gokhroo, G, Goldenzweig, P, Golob, B, Grosse Perdekamp, M, Guler, H, Ha, H, Haba, J, Hara, K, Hara, T, Hasegawa, Y, Hastings, NC, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Higuchi, T, Hinz, L, Hoedlmoser, H, Hokuue, T, Horii, Y, Hoshi, Y, Hoshina, K, Hou, S, Hou, WS, Hsiung, YB, Hyun, HJ, Igarashi, Y, Iijima, T, Ikado, K, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwabuchi, M, Iwasaki, M, Iwasaki, Y, Jacoby, C, Joshi, NJ, Kaga, M, Kah, DH, Kaji, H, Kajiwara, S, Kakuno, H, Kang, JH, Kapusta, P, Kataoka, SU, Katayama, N, Kawai, H, Kawasaki, T, Kibayashi, A, Kichimi, H, Kim, HJ, Kim, HO, Kim, JH, Kim, SK, Kim, YJ, Kinoshita, K, Korpar, S, Kozakai, Y, Krizan, P, Krokovny, P, Kumar, R, Kurihara, E, Kusaka, A, Kuzmin, A, Kwon, YJ, Lange, JS, Leder, G, Lee, J, Lee, JS, Lee, MJ, Lee, SE, Lesiak, T, Li, J, Limosani, A, Lin, SW, Liu, Y, Liventsev, D, MacNaughton, J, Majumder, G, Mandl, F, Marlow, D, Matsumura, T, Matyja, A, McOnie, S, Medvedeva, T, Mikami, Y, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Mori, T, Mueller, J, Murakami, A, Nagamine, T, Nagasaka, Y, Nakahama, Y, Nakamura, I, Nakano, E, Nakao, M, Nakayama, H, Nakazawa, H, Natkaniec, Z, Neichi, K, Nishida, S, Nishimura, K, Nishio, Y, Nishizawa, I, Nitoh, O, Noguchi, S, Nozaki, T, Ogawa, A, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ono, S, Ostrowicz, W, Ozaki, H, Pakhlov, P, Pakhlova, G, Palka, H, Park, CW, Park, H, Park, KS, Parslow, N, Peak, LS, Pernicka, M, Pestotnik, R, Peters, M, Piilonen, LE, Poluektov, A, Rorie, J, Rozanska, M, Sahoo, H, Sakai, Y, Sakaue, H, Sasao, N, Sarangi, TR, Satoyama, N, Sayeed, K, Schietinger, T, Schneider, O, Schönmeier, P, Schümann, J, Schwanda, C, Schwartz, AJ, Seidl, R, Sekiya, A, Senyo, K, Sevior, ME, Shang, L, Shapkin, M, Shen, CP, Shibuya, H, Shinomiya, S, Shiu, JG, Shwartz, B, Singh, JB, Sokolov, A, Solovieva, E, Somov, A, Stanic, S, Staric, M, Stypula, J, Sugiyama, A, Sumisawa, K, Sumiyoshi, T, Suzuki, S, Suzuki, SY, Tajima, O, Takasaki, F, Tamai, K, Tamura, N, Tanaka, M, Taniguchi, N, Taylor, GN, Teramoto, Y, Tikhomirov, I, Trabelsi, K, Tse, YF, Tsuboyama, T, Uchida, K, Uchida, Y, Uehara, S, Ueno, K, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Ushiroda, Y, Usov, Y, Varner, G, Varvell, KE, Vervink, K, Villa, S, Vinokurova, A, Wang, CC, Wang, CH, Wang, J, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Wedd, R, Wicht, J, Widhalm, L, Wiechczynski, J, Won, E, Yabsley, BD, Yamaguchi, A, Yamamoto, H, Yamaoka, M, Yamashita, Y, Yamauchi, M, Yuan, CZ, Yusa, Y, Zhang, CC, Zhang, LM, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A & Zwahlen, N 2007, 'Search for lepton flavor violating τ decays into three leptons', Paper presented at 23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007, Daegu, Korea, Republic of, 07/8/13 - 07/8/18.

@conference{2259d1ff8abd43f181549804bc5231c1,

title = "Search for lepton flavor violating τ decays into three leptons",

abstract = "We search for lepton-flavor-violating τ decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed and we set 90% confidence level upper limits on the branching fractions between 2.0 × 10-8 and 4.1 × 10 -8. These results improve the best previously published upper limits by factors from 4.9 to 7.0.",

author = "K. Abe and I. Adachi and H. Aihara and K. Arinstein and T. Aso and V. Aulchenko and T. Aushev and T. Aziz and S. Bahinipati and Bakich, {A. M.} and V. Balagura and Y. Ban and S. Banerjee and E. Barberio and A. Bay and I. Bedny and K. Belous and V. Bhardwaj and U. Bitenc and S. Blyth and A. Bondar and A. Bozek and M. Bracko and J. Brodzicka and Browder, {T. E.} and Chang, {M. C.} and P. Chang and Y. Chao and A. Chen and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. G.} and Chiang, {C. C.} and R. Chistov and Cho, {I. S.} and Choi, {S. K.} and Y. Choi and Choi, {Y. K.} and S. Cole and J. Dalseno and M. Danilov and A. Das and M. Dash and J. Dragic and A. Drutskoy and S. Eidelman and D. Epifanov and S. Fratina and H. Fujii and M. Fujikawa and N. Gabyshev and A. Garmash and A. Go and G. Gokhroo and P. Goldenzweig and B. Golob and {Grosse Perdekamp}, M. and H. Guler and H. Ha and J. Haba and K. Hara and T. Hara and Y. Hasegawa and Hastings, {N. C.} and K. Hayasaka and H. Hayashii and M. Hazumi and D. Heffernan and T. Higuchi and L. Hinz and H. Hoedlmoser and T. Hokuue and Y. Horii and Y. Hoshi and K. Hoshina and S. Hou and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and Y. Igarashi and T. Iijima and K. Ikado and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwabuchi and M. Iwasaki and Y. Iwasaki and C. Jacoby and Joshi, {N. J.} and M. Kaga and Kah, {D. H.} and H. Kaji and S. Kajiwara and H. Kakuno and Kang, {J. H.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and H. Kawai and T. Kawasaki and A. Kibayashi and H. Kichimi and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. H.} and Kim, {S. K.} and Kim, {Y. J.} and K. Kinoshita and S. Korpar and Y. Kozakai and P. Krizan and P. Krokovny and R. Kumar and E. Kurihara and A. Kusaka and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and J. Lee and Lee, {J. S.} and Lee, {M. J.} and Lee, {S. E.} and T. Lesiak and J. Li and A. Limosani and Lin, {S. W.} and Y. Liu and D. Liventsev and J. MacNaughton and G. Majumder and F. Mandl and D. Marlow and T. Matsumura and A. Matyja and S. McOnie and T. Medvedeva and Y. Mikami and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, {G. R.} and T. Mori and J. Mueller and A. Murakami and T. Nagamine and Y. Nagasaka and Y. Nakahama and I. Nakamura and E. Nakano and M. Nakao and H. Nakayama and H. Nakazawa and Z. Natkaniec and K. Neichi and S. Nishida and K. Nishimura and Y. Nishio and I. Nishizawa and O. Nitoh and S. Noguchi and T. Nozaki and A. Ogawa and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and S. Ono and W. Ostrowicz and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Palka and Park, {C. W.} and H. Park and Park, {K. S.} and N. Parslow and Peak, {L. S.} and M. Pernicka and R. Pestotnik and M. Peters and Piilonen, {L. E.} and A. Poluektov and J. Rorie and M. Rozanska and H. Sahoo and Y. Sakai and H. Sakaue and N. Sasao and Sarangi, {T. R.} and N. Satoyama and K. Sayeed and T. Schietinger and O. Schneider and P. Sch{\"o}nmeier and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and R. Seidl and A. Sekiya and K. Senyo and Sevior, {M. E.} and L. Shang and M. Shapkin and Shen, {C. P.} and H. Shibuya and S. Shinomiya and Shiu, {J. G.} and B. Shwartz and Singh, {J. B.} and A. Sokolov and E. Solovieva and A. Somov and S. Stanic and M. Staric and J. Stypula and A. Sugiyama and K. Sumisawa and T. Sumiyoshi and S. Suzuki and Suzuki, {S. Y.} and O. Tajima and F. Takasaki and K. Tamai and N. Tamura and M. Tanaka and N. Taniguchi and Taylor, {G. N.} and Y. Teramoto and I. Tikhomirov and K. Trabelsi and Tse, {Y. F.} and T. Tsuboyama and K. Uchida and Y. Uchida and S. Uehara and K. Ueno and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Ushiroda and Y. Usov and G. Varner and Varvell, {K. E.} and K. Vervink and S. Villa and A. Vinokurova and Wang, {C. C.} and Wang, {C. H.} and J. Wang and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and R. Wedd and J. Wicht and L. Widhalm and J. Wiechczynski and E. Won and Yabsley, {B. D.} and A. Yamaguchi and H. Yamamoto and M. Yamaoka and Y. Yamashita and M. Yamauchi and Yuan, {C. Z.} and Y. Yusa and Zhang, {C. C.} and Zhang, {L. M.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc and N. Zwahlen",

note = "Funding Information: The authors are grateful to A. Buras and Th. Mannel for fruitful discussions. We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the National Institute of Informatics for valuable computing and Super-SINET network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Education, Science and Training; the National Science Foundation of China and the Knowledge Innovation Program of the Chinese Academy of Sciences under contract No. 10575109 and IHEP-U-503; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea, the CHEP SRC program and Basic Research program (grant No. R01-2005-000-10089-0) of the Korea Science and Engineering Foundation, and the Pure Basic Research Group program of the Korea Research Foundation; the Polish State Committee for Scientific Research; the Ministry of Education and Science of the Russian Federation and the Russian Federal Agency for Atomic Energy; the Slovenian Research Agency; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.; 23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007 ; Conference date: 13-08-2007 Through 18-08-2007",

year = "2007",

language = "English",

}

TY - CONF

T1 - Search for lepton flavor violating τ decays into three leptons

AU - Abe, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aso, T.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Aziz, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Ban, Y.

AU - Banerjee, S.

AU - Barberio, E.

AU - Bay, A.

AU - Bedny, I.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bitenc, U.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bracko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Chistov, R.

AU - Cho, I. S.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Cole, S.

AU - Dalseno, J.

AU - Danilov, M.

AU - Das, A.

AU - Dash, M.

AU - Dragic, J.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fratina, S.

AU - Fujii, H.

AU - Fujikawa, M.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Go, A.

AU - Gokhroo, G.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Grosse Perdekamp, M.

AU - Guler, H.

AU - Ha, H.

AU - Haba, J.

AU - Hara, K.

AU - Hara, T.

AU - Hasegawa, Y.

AU - Hastings, N. C.

AU - Hayasaka, K.

AU - Hayashii, H.

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N1 - Funding Information: The authors are grateful to A. Buras and Th. Mannel for fruitful discussions. We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the National Institute of Informatics for valuable computing and Super-SINET network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology of Japan and the Japan Society for the Promotion of Science; the Australian Research Council and the Australian Department of Education, Science and Training; the National Science Foundation of China and the Knowledge Innovation Program of the Chinese Academy of Sciences under contract No. 10575109 and IHEP-U-503; the Department of Science and Technology of India; the BK21 program of the Ministry of Education of Korea, the CHEP SRC program and Basic Research program (grant No. R01-2005-000-10089-0) of the Korea Science and Engineering Foundation, and the Pure Basic Research Group program of the Korea Research Foundation; the Polish State Committee for Scientific Research; the Ministry of Education and Science of the Russian Federation and the Russian Federal Agency for Atomic Energy; the Slovenian Research Agency; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the US Department of Energy.

PY - 2007

Y1 - 2007

N2 - We search for lepton-flavor-violating τ decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed and we set 90% confidence level upper limits on the branching fractions between 2.0 × 10-8 and 4.1 × 10 -8. These results improve the best previously published upper limits by factors from 4.9 to 7.0.

AB - We search for lepton-flavor-violating τ decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed and we set 90% confidence level upper limits on the branching fractions between 2.0 × 10-8 and 4.1 × 10 -8. These results improve the best previously published upper limits by factors from 4.9 to 7.0.

UR - http://www.scopus.com/inward/record.url?scp=84886382286&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84886382286

T2 - 23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007

Y2 - 13 August 2007 through 18 August 2007

ER -

Search for lepton flavor violating τ decays into three leptons

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