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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, I; Adamczyk, K.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Aziz, T.; Babu, V; Bahinipati, S.; Behera, P.; Bennett, J.; Bessner, M.; Bhardwaj, V; Bilka, T.; Biswal, J.; Bonvicini, G.; Bozek, A.; Bracko, M.; Browder, T. E.; Campajola, M.; Cao, L.; Cervenkov, D. T.; Chang, M-C; Chang, P.; Chekelian, V; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, K.; Choi, S-K; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; Das, S.; Dash, N.; De Nardo, G.; Di Capua, F.; Dingfelder, J.; Dolezal, Z.; Dong, T., V; Dubey, S.; Eidelman, S.; Epifanov, D.; Ferber, T.; Ferlewicz, D.; Frey, A.; Fulsom, B. G.; Garg, R.; Gaur, V; Garmash, 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. Hernandez; Hou, W-S; Hsu, C-L; Huang, 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-K; Kinoshita, 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-J; Lalwani, 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, V; Prencipe, 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, V; Schnell, G.; Schueler, J.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Sharma, C.; Shen, C. P.; Shiu, J-G; Shwartz, 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-Z; Wang, 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, V; Zhukova, V; Zhulanov, V
- Issue Date
- Dec-2020
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.102, no.11
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 102
- Number
- 11
- ISSN
- 2470-0010
- Abstract
- We search for lepton-number- and baryon-number-violating decays tau(-) -> (p) over bare(+)e(-), (p) over bare(-)e(-), (p) over bare(+)mu(-), (p) over bare(-)mu(+), (p) over bar mu(+)mu(-), and (p) over bar mu(-)mu(-) using 921 fb(-1) of data, equivalent to (841 +/- 12) x 10(6) tau(+)tau(-) 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) x 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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Related Researcher
- Kim, D. Y.
- College of Natural Sciences (Department of Physics)