Search for dinucleon decay into kaons in Super-Kamiokande

Michael Litos; Kou Abe; Yoshinari Hayato; Takashi Iida; Motoyasu Ikeda; Kazuki Iyogi; Jun Kameda; Kazuyoshi Ken Kobayashi; Yusuke Koshio; Y Kozuma; Makoto Miura; Shigetaka Moriyama; Masayuki Nakahata; Shoei Nakayama; Yoshihisa Obayashi; Hiroshi Ogawa; Hiroyuki Sekiya; Masato Shiozawa; Yoichiro Suzuki; Atsushi Takeda; Yumiko Takenaga; Yasuo Takeuchi; Koh Ueno; Kota Ueshima; Hiroko Watanabe; Satoru Yamada; Takaaki Yokozawa; S Hazama; Chizue Ishihara; Hiroshi Kaji; Takaaki Kajita; Kenji Kaneyuki; Thomas McLachlan; Kimihiro Okumura; Yuki Shimizu; Naho Tanimoto; Mark R Vagins; Edward T Kearns; James L Stone; Lawrence R Sulak; Fanny Dufour; Jennifer L Raaf; Brian Henning; Maurice Goldhaber; K Bays; David William Casper; James P Cravens; William R Kropp; Zhixing Yang; Eric Thrane

doi:10.1103/PhysRevLett.112.131803

Search for dinucleon decay into kaons in Super-Kamiokande

Michael Litos, Kou Abe, Yoshinari Hayato, Takashi Iida, Motoyasu Ikeda, Kazuki Iyogi, Jun Kameda, Kazuyoshi Ken Kobayashi, Yusuke Koshio, Y Kozuma, Makoto Miura, Shigetaka Moriyama, Masayuki Nakahata, Shoei Nakayama, Yoshihisa Obayashi, Hiroshi Ogawa, Hiroyuki Sekiya, Masato Shiozawa, Yoichiro Suzuki, Atsushi TakedaYumiko Takenaga, Yasuo Takeuchi, Koh Ueno, Kota Ueshima, Hiroko Watanabe, Satoru Yamada, Takaaki Yokozawa, S Hazama, Chizue Ishihara, Hiroshi Kaji, Takaaki Kajita, Kenji Kaneyuki, Thomas McLachlan, Kimihiro Okumura, Yuki Shimizu, Naho Tanimoto, Mark R Vagins, Edward T Kearns, James L Stone, Lawrence R Sulak, Fanny Dufour, Jennifer L Raaf, Brian Henning, Maurice Goldhaber, K Bays, David William Casper, James P Cravens, William R Kropp, Zhixing Yang, Eric Thrane

Research output: Contribution to journal › Article › Research › peer-review

27 Citations (Scopus)

Abstract

A search for the dinucleon decay pp→K+K+ has been performed using 91.6 kton⋅yr data from Super-Kamiokande-I. This decay provides a sensitive probe of the R-parity-violating parameter λ112''. A boosted decision tree analysis found no signal candidates in the data. The expected background was 0.28±0.19 atmospheric neutrino induced events and the estimated signal detection efficiency was 12.6%±3.2%. A lower limit of 1.7×1032 years has been placed on the partial lifetime of the decay 16O→14CK+K+ at 90% C.L. A corresponding upper limit of 7.8×10−9 has been placed on the parameter λ112''.

Original language	English
Article number	131803
Number of pages	6
Journal	Physical Review Letters
Volume	112
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.112.131803
Publication status	Published - 2014
Externally published	Yes

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Litos, M., Abe, K., Hayato, Y., Iida, T., Ikeda, M., Iyogi, K., Kameda, J., Kobayashi, K. K., Koshio, Y., Kozuma, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Obayashi, Y., Ogawa, H., Sekiya, H., Shiozawa, M., Suzuki, Y., ... Thrane, E. (2014). Search for dinucleon decay into kaons in Super-Kamiokande. Physical Review Letters, 112(13), Article 131803. https://doi.org/10.1103/PhysRevLett.112.131803

@article{4eaed7a646b14fda8508002fc365f399,

title = "Search for dinucleon decay into kaons in Super-Kamiokande",

abstract = "A search for the dinucleon decay pp→K+K+ has been performed using 91.6 kton⋅yr data from Super-Kamiokande-I. This decay provides a sensitive probe of the R-parity-violating parameter λ112''. A boosted decision tree analysis found no signal candidates in the data. The expected background was 0.28±0.19 atmospheric neutrino induced events and the estimated signal detection efficiency was 12.6%±3.2%. A lower limit of 1.7×1032 years has been placed on the partial lifetime of the decay 16O→14CK+K+ at 90% C.L. A corresponding upper limit of 7.8×10−9 has been placed on the parameter λ112''.",

author = "Michael Litos and Kou Abe and Yoshinari Hayato and Takashi Iida and Motoyasu Ikeda and Kazuki Iyogi and Jun Kameda and Kobayashi, {Kazuyoshi Ken} and Yusuke Koshio and Y Kozuma and Makoto Miura and Shigetaka Moriyama and Masayuki Nakahata and Shoei Nakayama and Yoshihisa Obayashi and Hiroshi Ogawa and Hiroyuki Sekiya and Masato Shiozawa and Yoichiro Suzuki and Atsushi Takeda and Yumiko Takenaga and Yasuo Takeuchi and Koh Ueno and Kota Ueshima and Hiroko Watanabe and Satoru Yamada and Takaaki Yokozawa and S Hazama and Chizue Ishihara and Hiroshi Kaji and Takaaki Kajita and Kenji Kaneyuki and Thomas McLachlan and Kimihiro Okumura and Yuki Shimizu and Naho Tanimoto and Vagins, {Mark R} and Kearns, {Edward T} and Stone, {James L} and Sulak, {Lawrence R} and Fanny Dufour and Raaf, {Jennifer L} and Brian Henning and Maurice Goldhaber and K Bays and Casper, {David William} and Cravens, {James P} and Kropp, {William R} and Zhixing Yang and Eric Thrane",

year = "2014",

doi = "10.1103/PhysRevLett.112.131803",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

Litos, M, Abe, K, Hayato, Y, Iida, T, Ikeda, M, Iyogi, K, Kameda, J, Kobayashi, KK, Koshio, Y, Kozuma, Y, Miura, M, Moriyama, S, Nakahata, M, Nakayama, S, Obayashi, Y, Ogawa, H, Sekiya, H, Shiozawa, M, Suzuki, Y, Takeda, A, Takenaga, Y, Takeuchi, Y, Ueno, K, Ueshima, K, Watanabe, H, Yamada, S, Yokozawa, T, Hazama, S, Ishihara, C, Kaji, H, Kajita, T, Kaneyuki, K, McLachlan, T, Okumura, K, Shimizu, Y, Tanimoto, N, Vagins, MR, Kearns, ET, Stone, JL, Sulak, LR, Dufour, F, Raaf, JL, Henning, B, Goldhaber, M, Bays, K, Casper, DW, Cravens, JP, Kropp, WR, Yang, Z & Thrane, E 2014, 'Search for dinucleon decay into kaons in Super-Kamiokande', Physical Review Letters, vol. 112, no. 13, 131803. https://doi.org/10.1103/PhysRevLett.112.131803

TY - JOUR

T1 - Search for dinucleon decay into kaons in Super-Kamiokande

AU - Litos, Michael

AU - Abe, Kou

AU - Hayato, Yoshinari

AU - Iida, Takashi

AU - Ikeda, Motoyasu

AU - Iyogi, Kazuki

AU - Kameda, Jun

AU - Kobayashi, Kazuyoshi Ken

AU - Koshio, Yusuke

AU - Kozuma, Y

AU - Miura, Makoto

AU - Moriyama, Shigetaka

AU - Nakahata, Masayuki

AU - Nakayama, Shoei

AU - Obayashi, Yoshihisa

AU - Ogawa, Hiroshi

AU - Sekiya, Hiroyuki

AU - Shiozawa, Masato

AU - Suzuki, Yoichiro

AU - Takeda, Atsushi

AU - Takenaga, Yumiko

AU - Takeuchi, Yasuo

AU - Ueno, Koh

AU - Ueshima, Kota

AU - Watanabe, Hiroko

AU - Yamada, Satoru

AU - Yokozawa, Takaaki

AU - Hazama, S

AU - Ishihara, Chizue

AU - Kaji, Hiroshi

AU - Kajita, Takaaki

AU - Kaneyuki, Kenji

AU - McLachlan, Thomas

AU - Okumura, Kimihiro

AU - Shimizu, Yuki

AU - Tanimoto, Naho

AU - Vagins, Mark R

AU - Kearns, Edward T

AU - Stone, James L

AU - Sulak, Lawrence R

AU - Dufour, Fanny

AU - Raaf, Jennifer L

AU - Henning, Brian

AU - Goldhaber, Maurice

AU - Bays, K

AU - Casper, David William

AU - Cravens, James P

AU - Kropp, William R

AU - Yang, Zhixing

AU - Thrane, Eric

PY - 2014

Y1 - 2014

N2 - A search for the dinucleon decay pp→K+K+ has been performed using 91.6 kton⋅yr data from Super-Kamiokande-I. This decay provides a sensitive probe of the R-parity-violating parameter λ112''. A boosted decision tree analysis found no signal candidates in the data. The expected background was 0.28±0.19 atmospheric neutrino induced events and the estimated signal detection efficiency was 12.6%±3.2%. A lower limit of 1.7×1032 years has been placed on the partial lifetime of the decay 16O→14CK+K+ at 90% C.L. A corresponding upper limit of 7.8×10−9 has been placed on the parameter λ112''.

AB - A search for the dinucleon decay pp→K+K+ has been performed using 91.6 kton⋅yr data from Super-Kamiokande-I. This decay provides a sensitive probe of the R-parity-violating parameter λ112''. A boosted decision tree analysis found no signal candidates in the data. The expected background was 0.28±0.19 atmospheric neutrino induced events and the estimated signal detection efficiency was 12.6%±3.2%. A lower limit of 1.7×1032 years has been placed on the partial lifetime of the decay 16O→14CK+K+ at 90% C.L. A corresponding upper limit of 7.8×10−9 has been placed on the parameter λ112''.

UR - http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.112.131803

U2 - 10.1103/PhysRevLett.112.131803

DO - 10.1103/PhysRevLett.112.131803

M3 - Article

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 131803

ER -

Search for dinucleon decay into kaons in Super-Kamiokande

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