Search for lepton-flavor and lepton-number-violating Τ → ℓhh' decay modes

Miyazaki, Y.; Hayasaka, K.; Adachi, I.; Aihara, H.; Asner, D.M.; Aulchenko, V.; Aushev, T.; Bakich, A.M.; Bay, A.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bozek, A.; Bračko, M.; Browder, T.E.; Chang, M.-C.; Chen, A.; Chen, P.; Cheon, B.G.; Chistov, R.; Cho, K.; Choi, Y.; Dalseno, J.; Doležal, Z.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Fast, J.E.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y.M.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hyun, H.J.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kang, J.H.; Kiesling, C.; Kim, H.J.; Kim, H.O.; Kim, K.T.; Kim, M.J.; Kim, Y.J.; Ko, B.R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Y.-J.; Lee, S.-H.; Li, Y.; Lim, C.-L.; Liu, C.; Liu, Z.Q.; Liventsev, D.; Louvot, R.; Matvienko, D.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G.B.; Moll, A.; Muramatsu, N.; Nakano, E.; Nakao, M.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, C.W.; Park, H.K.; Petrič, M.; Piilonen, L.E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Seon, O.; Shapkin, M.; Shen, C.P.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J.B.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Wang, C.H.; Wang, P.; Won, E.; Yamashita, Y.; Yusa, Y.; Zhang, Z.P.; Zhulanov, V.

doi:10.1016/j.physletb.2013.01.032

Search for lepton-flavor and lepton-number-violating Τ → ℓhh' decay modes

Journal Article · Fri Feb 01 00:00:00 EST 2013 · Physics Letters. B

DOI:https://doi.org/10.1016/j.physletb.2013.01.032· OSTI ID:1209738

Miyazaki, Y.; Hayasaka, K.; Adachi, I.; Aihara, H.; Asner, D.M.; Aulchenko, V.; Aushev, T.; Bakich, A.M.; Bay, A.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bozek, A.; Bračko, M.; Browder, T.E.; Chang, M.-C.; Chen, A.; Chen, P.; Cheon, B.G.; Chistov, R. more »

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^±) using 854 fb⁻¹of data collected with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. We obtain 90% confidence level upper limits on the τ→ℓhh' branching fractions in the range (2.0–8.4)×10⁻⁸. These results improve upon our previously published upper limits by factors of about 1.8 on average.

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Research Organization:: Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Sponsoring Organization:: National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: Belle Collaboration

Grant/Contract Number:: SC0009973

OSTI ID:: 1209738

Alternate ID(s):: OSTI ID: 1337734
OSTI ID: 22239073
OSTI ID: 1594536

Journal Information:: Physics Letters. B, Journal Name: Physics Letters. B Journal Issue: 4-5 Vol. 719; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: Netherlands

Language:: English

References (24)

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