Search for trilepton nucleon decay via p→e+νν and p→μ+νν in the Super-Kamiokande experiment

V Takhistov; K Abe; Y Haga; Y Hayato; M Ikeda; K Iyogi; J Kameda; Y Kishimoto; M Miura; S Moriyama; M Nakahata; Y Nakano; S Nakayama; H Sekiya; M Shiozawa; Y Suzuki; A Takeda; H Tanaka; T Tomura; K Ueno; R A Wendell; T Yokozawa; T Irvine; T Kajita; I Kametani; K Kaneyuki; K P Lee; T McLachlan; Y Nishimura; E Richard; K Okumura; L Labarga; P Fernandez; S Berkman; H A Tanaka; S Tobayama; J Gustafson; E Kearns; J L Raaf; J L Stone; L R Sulak; M Goldhaber; G Carminati; W R Kropp; S Mine; P Weatherly; A Renshaw; M B Smy; H W Sobel; K S Ganezer; B L Hartfiel; J Hill; W E Keig; N Hong; J Y Kim; I T Lim; T Akiri; A Himmel; K Scholberg; C W Walter; T Wongjirad; T Ishizuka; S Tasaka; J S Jang; J G Learned; S Matsuno; S N Smith; T Hasegawa; T Ishida; T Ishii; T Kobayashi; T Nakadaira; K Nakamura; Y Oyama; K Sakashita; T Sekiguchi; T Tsukamoto; A T Suzuki; Y Takeuchi; C Bronner; S Hirota; K Huang; K Ieki; T Kikawa; A Minamino; A Murakami; T Nakaya; K Suzuki; S Takahashi; K Tateishi; Y Fukuda; K Choi; Y Itow; G Mitsuka; P Mijakowski; J Hignight; J Imber; C K Jung; C Yanagisawa; H Ishino; A Kibayashi; Y Koshio; T Mori; M Sakuda; R Yamaguchi; T Yano; Y Kuno; R Tacik; S B Kim; H Okazawa; Y Choi; K Nishijima; M Koshiba; Y Suda; Y Totsuka; M Yokoyama; K Martens; Ll Marti; M R Vagins; J F Martin; P de Perio; A Konaka; M J Wilking; S Chen; Y Zhang; K Connolly; R J Wilkes; Super-Kamiokande Collaboration

doi:10.1103/PhysRevLett.113.101801

Search for trilepton nucleon decay via p→e+νν and p→μ+νν in the Super-Kamiokande experiment

Phys Rev Lett. 2014 Sep 5;113(10):101801. doi: 10.1103/PhysRevLett.113.101801. Epub 2014 Sep 4.

Authors

V Takhistov¹, K Abe², Y Haga³, Y Hayato², M Ikeda³, K Iyogi³, J Kameda², Y Kishimoto², M Miura², S Moriyama², M Nakahata², Y Nakano³, S Nakayama², H Sekiya², M Shiozawa², Y Suzuki², A Takeda², H Tanaka³, T Tomura², K Ueno³, R A Wendell², T Yokozawa³, T Irvine⁴, T Kajita⁵, I Kametani⁴, K Kaneyuki⁵, K P Lee⁴, T McLachlan⁴, Y Nishimura⁴, E Richard⁴, K Okumura⁵, L Labarga⁶, P Fernandez⁶, S Berkman⁷, H A Tanaka⁷, S Tobayama⁷, J Gustafson⁸, E Kearns⁹, J L Raaf⁸, J L Stone⁹, L R Sulak⁸, M Goldhaber¹⁰, G Carminati¹, W R Kropp¹, S Mine¹, P Weatherly¹, A Renshaw¹, M B Smy¹¹, H W Sobel¹¹, K S Ganezer¹², B L Hartfiel¹², J Hill¹², W E Keig¹², N Hong¹³, J Y Kim¹³, I T Lim¹³, T Akiri¹⁴, A Himmel¹⁴, K Scholberg¹⁵, C W Walter¹⁵, T Wongjirad¹⁴, T Ishizuka¹⁶, S Tasaka¹⁷, J S Jang¹⁸, J G Learned¹⁹, S Matsuno¹⁹, S N Smith¹⁹, T Hasegawa²⁰, T Ishida²⁰, T Ishii²⁰, T Kobayashi²⁰, T Nakadaira²⁰, K Nakamura²¹, Y Oyama²⁰, K Sakashita²⁰, T Sekiguchi²⁰, T Tsukamoto²⁰, A T Suzuki²², Y Takeuchi²², C Bronner²³, S Hirota²³, K Huang²³, K Ieki²³, T Kikawa²³, A Minamino²³, A Murakami²³, T Nakaya²⁴, K Suzuki²³, S Takahashi²³, K Tateishi²³, Y Fukuda²⁵, K Choi²⁶, Y Itow²⁶, G Mitsuka²⁶, P Mijakowski²⁷, J Hignight²⁸, J Imber²⁸, C K Jung²⁸, C Yanagisawa²⁸, H Ishino²⁹, A Kibayashi²⁹, Y Koshio²⁹, T Mori²⁹, M Sakuda²⁹, R Yamaguchi²⁹, T Yano²⁹, Y Kuno³⁰, R Tacik³¹, S B Kim³², H Okazawa³³, Y Choi³⁴, K Nishijima³⁵, M Koshiba³⁶, Y Suda³⁶, Y Totsuka³⁶, M Yokoyama³⁷, K Martens³⁸, Ll Marti³⁸, M R Vagins¹¹, J F Martin³⁹, P de Perio³⁹, A Konaka⁴⁰, M J Wilking⁴⁰, S Chen⁴¹, Y Zhang⁴¹, K Connolly⁴², R J Wilkes⁴²; Super-Kamiokande Collaboration

Affiliations

¹ Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA.
² Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
³ Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka, Gifu 506-1205, Japan.
⁴ Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
⁵ Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
⁶ Department of Theoretical Physics, University Autonoma Madrid, 28049 Madrid, Spain.
⁷ Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T1Z4, Canada.
⁸ Department of Physics, Boston University, Boston, Massachusetts 02215, USA.
⁹ Department of Physics, Boston University, Boston, Massachusetts 02215, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
¹⁰ Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
¹¹ Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
¹² Department of Physics, California State University, Dominguez Hills, Carson, California 90747, USA.
¹³ Department of Physics, Chonnam National University, Kwangju 500-757, Korea.
¹⁴ Department of Physics, Duke University, Durham, North Carolina 27708, USA.
¹⁵ Department of Physics, Duke University, Durham, North Carolina 27708, USA and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
¹⁶ Junior College, Fukuoka Institute of Technology, Fukuoka, Fukuoka 811-0295, Japan.
¹⁷ Department of Physics, Gifu University, Gifu, Gifu 501-1193, Japan.
¹⁸ GIST College, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea.
¹⁹ Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
²⁰ High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
²¹ High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
²² Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan.
²³ Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan.
²⁴ Department of Physics, Kyoto University, Kyoto, Kyoto 606-8502, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
²⁵ Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan.
²⁶ Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan.
²⁷ National Centre For Nuclear Research, 00-681 Warsaw, Poland.
²⁸ Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA.
²⁹ Department of Physics, Okayama University, Okayama, Okayama 700-8530, Japan.
³⁰ Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.
³¹ Department of Physics, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, S4SOA2, Canada and TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3, Canada.
³² Department of Physics, Seoul National University, Seoul 151-742, Korea.
³³ Department of Informatics in Social Welfare, Shizuoka University of Welfare, Yaizu, Shizuoka, 425-8611, Japan.
³⁴ Department of Physics, Sungkyunkwan University, Suwon 440-746, Korea.
³⁵ Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan.
³⁶ The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan.
³⁷ The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
³⁸ Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, Kashiwa, Chiba 277-8582, Japan.
³⁹ Department of Physics, University of Toronto, 60 Saint George Street, Toronto, Ontario, M5S1A7, Canada.
⁴⁰ TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3, Canada.
⁴¹ Department of Engineering Physics, Tsinghua University, Beijing, 100084, China.
⁴² Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA.

PMID: 25238348
DOI: 10.1103/PhysRevLett.113.101801

Abstract

The trilepton nucleon decay modes p→e+νν and p→μ+νν violate |Δ(B-L)| by two units. Using data from a 273.4 kt yr exposure of Super-Kamiokande a search for these decays yields a fit consistent with no signal. Accordingly, lower limits on the partial lifetimes of τp→e+νν>1.7×10(32) years and τp→μ+νν>2.2×10(32) years at a 90% confidence level are obtained. These limits can constrain Grand Unified Theories which allow for such processes.