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Search for lepton-number- and baryon-number-violating tau decays at Belleopen accessSearch for lepton-number- And baryon-number-violating tau decays at Belle

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Search for lepton-number- And baryon-number-violating tau decays at Belle
Authors
Sahoo, D.Mohanty, G. B.Trabelsi, K.Adachi, IAdamczyk, K.Aihara, H.Al Said, S.Asner, D. M.Aushev, T.Ayad, R.Aziz, T.Babu, VBahinipati, S.Behera, P.Bennett, J.Bessner, M.Bhardwaj, VBilka, T.Biswal, J.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D. T.Chang, M-CChang, P.Chekelian, VChen, A.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Choi, S-KChoi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Das, S.Dash, N.De Nardo, G.Di Capua, F.Dingfelder, J.Dolezal, Z.Dong, T., VDubey, S.Eidelman, S.Epifanov, D.Ferber, T.Ferlewicz, D.Frey, A.Fulsom, B. G.Garg, R.Gaur, VGarmash, A.Giri, A.Goldenzweig, P.Golob, B.Guan, Y.Gudkova, K.Hadjivasiliou, C.Halder, S.Hara, T.Hartbrich, O.Hayasaka, K.Hayashii, H.Hedges, M. T.Villanueva, M. HernandezHou, W-SHsu, C-LHuang, K.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jeon, H. B.Jia, S.Jin, Y.Joo, C. W.Joo, K. K.Kaliyar, A. B.Kang, K. H.Karyan, G.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, D. Y.Kim, S. H.Kim, Y-KKinoshita, K.Kodys, P.Konno, T.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kumar, M.Kumar, R.Kumara, K.Kuzmin, A.Kwon, Y-JLalwani, K.Lee, I. S.Lee, S. C.Li, C. H.Li, J.Li, L. K.Li, Y. B.Libby, J.Lieret, K.Liventsev, D.Luo, T.MacNaughton, J.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, S.Moon, T. J.Mussa, R.Nakano, E.Nakao, M.Natkaniec, Z.Natochii, A.Nayak, L.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Pakhlov, P.Pakhlova, G.Pang, T.Pardi, S.Park, C. W.Park, H.Patra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Podobnik, T.Popov, VPrencipe, E.Prim, M. T.Ritter, M.Rohrken, M.Rostomyan, A.Rout, N.Rozanska, M.Russo, G.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Savinov, VSchnell, G.Schueler, J.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Sevior, M. E.Shapkin, M.Sharma, C.Shen, C. P.Shiu, J-GShwartz, B.Simon, F.Sokolov, A.Solovieva, E.Stanic, S.Staric, M.Stottler, Z. S.Strube, J. F.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Vinokurova, A.Vorobyev, V.Waheed, E.Wang, C. H.Wang, E.Wang, M-ZWang, P.Watanabe, M.Watanuki, S.Wehle, S.Won, E.Xu, X.Yabsley, B. D.Yan, W.Yang, S. B.Ye, H.Yelton, J.Yin, J. H.Yusa, Y.Zhilich, VZhukova, VZhulanov, V
Issue Date
Dec-2020
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.102, no.11, pp.1 - 9
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
102
Number
11
Start Page
1
End Page
9
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144264
DOI
10.1103/PhysRevD.102.111101
ISSN
2470-0010
Abstract
We search for lepton-number- and baryon-number-violating decays τ-→p¯e+e-, pe-e-, p¯e+μ-, p¯e-μ+, p¯μ+μ-, and pμ-μ- using 921 fb-1 of data, equivalent to (841±12)×106 τ+τ- events, recorded with the Belle detector at the KEKB asymmetric-energy e+e- collider. In the absence of a signal, 90% confidence-level upper limits are set on the branching fractions of these decays in the range (1.8-4.0)×10-8. We set the world's first limits on the first four channels and improve the existing limits by an order of magnitude for the last two channels.
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