Search for lepton-flavor-violating τ → ℓ V0 decays at Belle

Nishio, Y.; Inami, K.; Ohshima, T.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Aziz, T.; Bakich, A.M.; Balagura, V.; Barberio, E.; Bedny, I.; Belous, K.; Bitenc, U.; Blyth, S.; Bondar, A.; Bračko, M.; Browder, T.E.; Chen, A.; Chen, W.T.; Cheon, B.G.; Cho, I.-S.; Choi, Y.; Dalseno, J.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Golob, B.; Ha, H.; Haba, J.; Hara, K.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y.B.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Joshi, N.J.; Kah, D.H.; Kaji, H.; Kang, J.H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, Y.J.; Korpar, S.; Kozakai, Y.; Križan, P.; Krokovny, P.; Kumar, R.; Kuo, C.C.; Kuroki, Y.; Kuzmin, A.; Kwon, Y.-J.; Lee, J.S.; Lee, M.J.; Lee, S.E.; Lesiak, T.; Limosani, A.; Liu, Y.; Liventsev, D.; Mandl, F.; McOnie, S.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G.R.; Mori, T.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, C.W.; Park, H.; Pestotnik, R.; Piilonen, L.E.; Poluektov, A.; Sakai, Y.; Schneider, O.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shebalin, V.; Shibuya, H.; Shiu, J.-G.; Shwartz, B.; Singh, J.B.; Sokolov, A.; Somov, A.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Takasaki, F.; Tanaka, M.; Taylor, G.N.; Teramoto, Y.; Tikhomirov, I.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Villa, S.; Vinokurova, A.; Wang, C.H.; Wang, P.; Wang, X.L.; Watanabe, Y.; Won, E.; Yamashita, Y.; Zhang, Z.P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Zyukova, O.

doi:10.1016/j.physletb.2008.05.012

Search for lepton-flavor-violating τ → ℓ V0 decays at Belle

Nishio, Y. ; Inami, K. ; Ohshima, T. ; Adachi, I.[...]

We have searched for neutrinoless τ lepton decays into ℓ and V0, where ℓ stands for an electron or muon, and V0 for a vector meson (φ{symbol}, ω, K* 0, over(K, ̄)* 0 or ρ0), using 543 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No excess of signal events over the expected background has been observed, and we set upper limits on the branching fractions in the range (5.9 - 18) × 10-8 at the 90% confidence level. These upper limits are significantly more restrictive than our previous results for the ℓφ{symbol}, ℓ K* 0, ℓ over(K, ̄)* 0 and ℓ ρ0 modes. © 2008 Elsevier B.V.

Published in:

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 664, 1-2, 35-40

Year:

2008

ISSN:

03702693

DOI:

10.1016/j.physletb.2008.05.012

Other identifiers:

Scopus: 2-s2.0-44249090203
View record in Web of Science

Laboratories:

LPHE