Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

Y. Miyazaki; H. Aihara; K. Arinstein; V. Aulchenko; T. Aushev; A. M. Bakich; V. Balagura; E. Barberio; A. Bay; K. Belous; V. Bhardwaj; M. Bischofberger; A. Bondar; M. Bračko; T. E. Browder; P. Chang; A. Chen; B. G. Cheon; I. S. Cho; Y. Choi; J. Dalseno; M. Dash; W. Dungel; S. Eidelman; D. Epifanov; M. Feindt; N. Gabyshev; A. Garmash; P. Goldenzweig; H. Ha; J. Haba; K. Hara; Y. Hasegawa; K. Hayasaka; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; H. J. Hyun; T. Iijima; K. Inami; R. Itoh; M. Iwasaki; Y. Iwasaki; T. Julius; D. H. Kah; J. H. Kang; H. Kawai; T. Kawasaki; H. O. Kim; J. H. Kim; S. K. Kim; Y. I. Kim; Y. J. Kim; B. R. Ko; S. Korpar; P. Križan; P. Krokovny; R. Kumar; T. Kumita; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; S. H. Lee; T. Lesiak; J. Li; C. Liu; D. Liventsev; R. Louvot; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; T. Nagamine; Y. Nagasaka; E. Nakano; M. Nakao; S. Nishida; K. Nishimura; O. Nitoh; T. Ohshima; S. Okuno; S. L. Olsen; P. Pakhlov; G. Pakhlova; H. Palka; C. W. Park; H. Park; H. K. Park; R. Pestotnik; L. E. Piilonen; A. Poluektov; Y. Sakai; O. Schneider; C. Schwanda; K. Senyo; M. Shapkin; V. Shebalin; J. G. Shiu; B. Shwartz; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; T. Sumiyoshi; G. N. Taylor; Y. Teramoto; I. Tikhomirov; S. Uehara; Y. Unno; S. Uno; P. Urquijo; Y. Usov; G. Varner; A. Vinokurova; C. H. Wang; P. Wang; Y. Watanabe; R. Wedd; E. Won; B. D. Yabsley; Y. Yamashita; Y. Yusa; Z. P. Zhang; V. Zhilich; V. Zhulanov; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1016/j.physletb.2009.11.061

Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

Y. Miyazaki
, H. Aihara
, K. Arinstein
, V. Aulchenko
, T. Aushev
, A. M. Bakich
, V. Balagura
, E. Barberio
, A. Bay
, K. Belous
, V. Bhardwaj
, M. Bischofberger
, A. Bondar
, M. Bračko
, T. E. Browder
, P. Chang
, A. Chen
, B. G. Cheon
, I. S. Cho
, Y. Choi

J. Dalseno, M. Dash, W. Dungel, S. Eidelman, D. Epifanov, M. Feindt, N. Gabyshev, A. Garmash, P. Goldenzweig, H. Ha, J. Haba, K. Hara, Y. Hasegawa, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, T. Julius, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. O. Kim, J. H. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, B. R. Ko, S. Korpar, P. Križan, P. Krokovny, R. Kumar, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, S. H. Lee, T. Lesiak, J. Li, C. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, H. K. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. Shapkin, V. Shebalin, J. G. Shiu, B. Shwartz, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, A. Vinokurova, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, E. Won, B. D. Yabsley, Y. Yamashita, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

Research output: Contribution to journal › Article › peer-review

Abstract

We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h^′ = π^± or K^±), τ^- → ℓ^- h⁺ h^{′ -} and τ^- → ℓ⁺ h^- h^{′ -}, using 671 fb^-1 of data collected with the Belle detector at the KEKB asymmetric-energy e⁺ e^- collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4 - 8.8) × 10^{- 8} for τ → e h h^′, and (3.3 - 16) × 10^{- 8} for τ → μ h h^′ processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.

Original language	English
Pages (from-to)	355-362
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	682
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2009.11.061
Publication status	Published - 4 Jan 2010
Externally published	Yes

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10.1016/j.physletb.2009.11.061

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Miyazaki, Y., Aihara, H., Arinstein, K., Aulchenko, V., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Bay, A., Belous, K., Bhardwaj, V., Bischofberger, M., Bondar, A., Bračko, M., Browder, T. E., Chang, P., Chen, A., Cheon, B. G., Cho, I. S., ... Zyukova, O. (2010). Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 682(4-5), 355-362. https://doi.org/10.1016/j.physletb.2009.11.061

@article{09714294f45644b5a1238c36c91b1a4b,

title = "Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons",

abstract = "We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h′ = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain 90\% C.L. upper limits on the branching fractions in the range (4.4 - 8.8) × 10- 8 for τ → e h h′, and (3.3 - 16) × 10- 8 for τ → μ h h′ processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.",

author = "Y. Miyazaki and H. Aihara and K. Arinstein and V. Aulchenko and T. Aushev and Bakich, \{A. M.\} and V. Balagura and E. Barberio and A. Bay and K. Belous and V. Bhardwaj and M. Bischofberger and A. Bondar and M. Bra{\v c}ko and Browder, \{T. E.\} and P. Chang and A. Chen and Cheon, \{B. G.\} and Cho, \{I. S.\} and Y. Choi and J. Dalseno and M. Dash and W. Dungel and S. Eidelman and D. Epifanov and M. Feindt and N. Gabyshev and A. Garmash and P. Goldenzweig and H. Ha and J. Haba and K. Hara and Y. Hasegawa and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hou, \{W. S.\} and Hyun, \{H. J.\} and T. Iijima and K. Inami and R. Itoh and M. Iwasaki and Y. Iwasaki and T. Julius and Kah, \{D. H.\} and Kang, \{J. H.\} and H. Kawai and T. Kawasaki and Kim, \{H. O.\} and Kim, \{J. H.\} and Kim, \{S. K.\} and Kim, \{Y. I.\} and Kim, \{Y. J.\} and Ko, \{B. R.\} and S. Korpar and P. Kri{\v z}an and P. Krokovny and R. Kumar and T. Kumita and A. Kuzmin and Kwon, \{Y. J.\} and Kyeong, \{S. H.\} and Lee, \{S. H.\} and T. Lesiak and J. Li and C. Liu and D. Liventsev and R. Louvot and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and S. Nishida and K. Nishimura and O. Nitoh and T. Ohshima and S. Okuno and Olsen, \{S. L.\} and P. Pakhlov and G. Pakhlova and H. Palka and Park, \{C. W.\} and H. Park and Park, \{H. K.\} and R. Pestotnik and Piilonen, \{L. E.\} and A. Poluektov and Y. Sakai and O. Schneider and C. Schwanda and K. Senyo and M. Shapkin and V. Shebalin and Shiu, \{J. G.\} and B. Shwartz and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and Taylor, \{G. N.\} and Y. Teramoto and I. Tikhomirov and S. Uehara and Y. Unno and S. Uno and P. Urquijo and Y. Usov and G. Varner and A. Vinokurova and Wang, \{C. H.\} and P. Wang and Y. Watanabe and R. Wedd and E. Won and Yabsley, \{B. D.\} and Y. Yamashita and Y. Yusa and Zhang, \{Z. P.\} and V. Zhilich and V. Zhulanov and T. Zivko and A. Zupanc and O. Zyukova",

year = "2010",

month = jan,

day = "4",

doi = "10.1016/j.physletb.2009.11.061",

language = "English",

volume = "682",

pages = "355--362",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "4-5",

}

Miyazaki, Y, Aihara, H, Arinstein, K, Aulchenko, V, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Bay, A, Belous, K, Bhardwaj, V, Bischofberger, M, Bondar, A, Bračko, M, Browder, TE, Chang, P, Chen, A, Cheon, BG, Cho, IS, Choi, Y, Dalseno, J, Dash, M, Dungel, W, Eidelman, S, Epifanov, D, Feindt, M, Gabyshev, N, Garmash, A, Goldenzweig, P, Ha, H, Haba, J, Hara, K, Hasegawa, Y, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Inami, K, Itoh, R, Iwasaki, M, Iwasaki, Y, Julius, T, Kah, DH, Kang, JH, Kawai, H, Kawasaki, T, Kim, HO, Kim, JH, Kim, SK, Kim, YI, Kim, YJ, Ko, BR, Korpar, S, Križan, P, Krokovny, P, Kumar, R, Kumita, T, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lee, SH, Lesiak, T, Li, J, Liu, C, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Nishida, S, Nishimura, K, Nitoh, O, Ohshima, T, Okuno, S, Olsen, SL, Pakhlov, P, Pakhlova, G, Palka, H, Park, CW, Park, H, Park, HK, Pestotnik, R, Piilonen, LE, Poluektov, A, Sakai, Y, Schneider, O, Schwanda, C, Senyo, K, Shapkin, M, Shebalin, V, Shiu, JG, Shwartz, B, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumiyoshi, T, Taylor, GN, Teramoto, Y, Tikhomirov, I, Uehara, S, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Varner, G, Vinokurova, A, Wang, CH, Wang, P, Watanabe, Y, Wedd, R, Won, E, Yabsley, BD, Yamashita, Y, Yusa, Y, Zhang, ZP, Zhilich, V, Zhulanov, V, Zivko, T, Zupanc, A & Zyukova, O 2010, 'Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 682, no. 4-5, pp. 355-362. https://doi.org/10.1016/j.physletb.2009.11.061

TY - JOUR

T1 - Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

AU - Miyazaki, Y.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Bay, A.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Dash, M.

AU - Dungel, W.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Feindt, M.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goldenzweig, P.

AU - Ha, H.

AU - Haba, J.

AU - Hara, K.

AU - Hasegawa, Y.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Julius, T.

AU - Kah, D. H.

AU - Kang, J. H.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kim, H. O.

AU - Kim, J. H.

AU - Kim, S. K.

AU - Kim, Y. I.

AU - Kim, Y. J.

AU - Ko, B. R.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kumar, R.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lee, S. H.

AU - Lesiak, T.

AU - Li, J.

AU - Liu, C.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Poluektov, A.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Senyo, K.

AU - Shapkin, M.

AU - Shebalin, V.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tikhomirov, I.

AU - Uehara, S.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Varner, G.

AU - Vinokurova, A.

AU - Wang, C. H.

AU - Wang, P.

AU - Watanabe, Y.

AU - Wedd, R.

AU - Won, E.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yusa, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2010/1/4

Y1 - 2010/1/4

N2 - We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h′ = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4 - 8.8) × 10- 8 for τ → e h h′, and (3.3 - 16) × 10- 8 for τ → μ h h′ processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.

AB - We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h′ = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain 90% C.L. upper limits on the branching fractions in the range (4.4 - 8.8) × 10- 8 for τ → e h h′, and (3.3 - 16) × 10- 8 for τ → μ h h′ processes. These results improve upon previously published upper limits by factors between 1.6 to 8.8.

U2 - 10.1016/j.physletb.2009.11.061

DO - 10.1016/j.physletb.2009.11.061

M3 - Article

AN - SCOPUS:72049096614

SN - 0370-2693

VL - 682

SP - 355

EP - 362

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

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