Search for light WIMP captured in the Sun using contained events in Super-Kamiokande

The Super-Kamiokande Collaboration

Search for light WIMP captured in the Sun using contained events in Super-Kamiokande

The Super-Kamiokande Collaboration

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Super-Kamiokande can search for dark matter by detecting neutrinos and muons which are produced by WIMP pair annihilations occur inside the Sun. The huge gravity and hydrogen-rich composition of the Sun combined with high sensitivity of Super-Kamiokande for low energy(few GeV) neutrinos allow us good sensitivity to light(few GeV to few 10 GeV) WIMP dark matter, especially for spin-dependent coupling case. In this analysis, we increased signal acceptance by using fully-contained and partially-contained neutrino events added to up-going muons in Super-Kamiokande. We also used minimum χ² method to use energy, direction and flavor informations. We fitted Super-Kamiokande I-IV data to find the allowed contribution of WIMP-induced neutrino events added to large back-ground of atmospheric neutrino events. As a result, we found no signal observed and the null result was interpreted as upper limit on the spin-dependent (SD) WIMP-proton elastic scattering cross-section for χχ → bb^¯ and χχ → τ⁺τ⁻ WIMP annihilation channels. We set current best limit for WIMP mass below 100 GeV.

Original language	English (US)
Title of host publication	Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
Publisher	Sociedade Brasileira de Fisica
ISBN (Electronic)	9788589064293
State	Published - 2013
Externally published	Yes
Event	33rd International Cosmic Rays Conference, ICRC 2013 - Rio de Janeiro, Brazil Duration: Jul 2 2013 → Jul 9 2013

Publication series

Name	Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
Volume	2013-October

Other

Other	33rd International Cosmic Rays Conference, ICRC 2013
Country/Territory	Brazil
City	Rio de Janeiro
Period	7/2/13 → 7/9/13

Bibliographical note

Publisher Copyright:
© 2013 Sociedade Brasileira de Fisica. All Rights Reserved.

Keywords

Indirect WIMP search
Super-Kamiokande

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Search for light WIMP captured in the Sun using contained events in Super-Kamiokande. / The Super-Kamiokande Collaboration.
Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013. Sociedade Brasileira de Fisica, 2013. (Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013; Vol. 2013-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

The Super-Kamiokande Collaboration 2013, Search for light WIMP captured in the Sun using contained events in Super-Kamiokande. in Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013. Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013, vol. 2013-October, Sociedade Brasileira de Fisica, 33rd International Cosmic Rays Conference, ICRC 2013, Rio de Janeiro, Brazil, 7/2/13.

@inproceedings{f68ca9296e21479f92ab43ee0907d65a,

title = "Search for light WIMP captured in the Sun using contained events in Super-Kamiokande",

abstract = "Super-Kamiokande can search for dark matter by detecting neutrinos and muons which are produced by WIMP pair annihilations occur inside the Sun. The huge gravity and hydrogen-rich composition of the Sun combined with high sensitivity of Super-Kamiokande for low energy(few GeV) neutrinos allow us good sensitivity to light(few GeV to few 10 GeV) WIMP dark matter, especially for spin-dependent coupling case. In this analysis, we increased signal acceptance by using fully-contained and partially-contained neutrino events added to up-going muons in Super-Kamiokande. We also used minimum χ2 method to use energy, direction and flavor informations. We fitted Super-Kamiokande I-IV data to find the allowed contribution of WIMP-induced neutrino events added to large back-ground of atmospheric neutrino events. As a result, we found no signal observed and the null result was interpreted as upper limit on the spin-dependent (SD) WIMP-proton elastic scattering cross-section for χχ → bb¯ and χχ → τ+τ− WIMP annihilation channels. We set current best limit for WIMP mass below 100 GeV.",

keywords = "Indirect WIMP search, Super-Kamiokande",

author = "\{The Super-Kamiokande Collaboration\} and Koun Choi and K. Abe and Y. Haga and Y. Hayato and K. Iyogi and J. Kameda and Y. Kishimoto and M. Miura and S. Moriyama and M. Nakahata and Y. Nakano and S. Nakayama and H. Sekiya and M. Shiozawa and Y. Suzuki and A. Takeda and T. Tomura and Wendell, \{R. A.\} and T. Irvine and T. Kajita and I. Kametani and K. Kaneyuki and Lee, \{K. P.\} and Y. Nishimura and K. Okumura and T. McLachlan and L. Labarga and E. Kearns and Raaf, \{J. L.\} and Stone, \{J. L.\} and Sulak, \{L. R.\} and S. Berkman and Tanaka, \{H. A.\} and S. Tobayama and M. Goldhaber and G. Carminati and Kropp, \{W. R.\} and S. Mine and A. Renshaw and Smy, \{M. B.\} and Sobel, \{H. W.\} and Ganezer, \{K. S.\} and J. Hill and N. Hong and Kim, \{J. Y.\} and Lim, \{I. T.\} and T. Akiri and A. Himmel and K. Scholberg and Wilking, \{M. J.\}",

note = "Publisher Copyright: {\textcopyright} 2013 Sociedade Brasileira de Fisica. All Rights Reserved.; 33rd International Cosmic Rays Conference, ICRC 2013 ; Conference date: 02-07-2013 Through 09-07-2013",

year = "2013",

language = "English (US)",

series = "Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013",

publisher = "Sociedade Brasileira de Fisica",

booktitle = "Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013",

address = "Brazil",

}

TY - GEN

T1 - Search for light WIMP captured in the Sun using contained events in Super-Kamiokande

AU - The Super-Kamiokande Collaboration

AU - Choi, Koun

AU - Abe, K.

AU - Haga, Y.

AU - Hayato, Y.

AU - Iyogi, K.

AU - Kameda, J.

AU - Kishimoto, Y.

AU - Miura, M.

AU - Moriyama, S.

AU - Nakahata, M.

AU - Nakano, Y.

AU - Nakayama, S.

AU - Sekiya, H.

AU - Shiozawa, M.

AU - Suzuki, Y.

AU - Takeda, A.

AU - Tomura, T.

AU - Wendell, R. A.

AU - Irvine, T.

AU - Kajita, T.

AU - Kametani, I.

AU - Kaneyuki, K.

AU - Lee, K. P.

AU - Nishimura, Y.

AU - Okumura, K.

AU - McLachlan, T.

AU - Labarga, L.

AU - Kearns, E.

AU - Raaf, J. L.

AU - Stone, J. L.

AU - Sulak, L. R.

AU - Berkman, S.

AU - Tanaka, H. A.

AU - Tobayama, S.

AU - Goldhaber, M.

AU - Carminati, G.

AU - Kropp, W. R.

AU - Mine, S.

AU - Renshaw, A.

AU - Smy, M. B.

AU - Sobel, H. W.

AU - Ganezer, K. S.

AU - Hill, J.

AU - Hong, N.

AU - Kim, J. Y.

AU - Lim, I. T.

AU - Akiri, T.

AU - Himmel, A.

AU - Scholberg, K.

AU - Wilking, M. J.

PY - 2013

Y1 - 2013

N2 - Super-Kamiokande can search for dark matter by detecting neutrinos and muons which are produced by WIMP pair annihilations occur inside the Sun. The huge gravity and hydrogen-rich composition of the Sun combined with high sensitivity of Super-Kamiokande for low energy(few GeV) neutrinos allow us good sensitivity to light(few GeV to few 10 GeV) WIMP dark matter, especially for spin-dependent coupling case. In this analysis, we increased signal acceptance by using fully-contained and partially-contained neutrino events added to up-going muons in Super-Kamiokande. We also used minimum χ2 method to use energy, direction and flavor informations. We fitted Super-Kamiokande I-IV data to find the allowed contribution of WIMP-induced neutrino events added to large back-ground of atmospheric neutrino events. As a result, we found no signal observed and the null result was interpreted as upper limit on the spin-dependent (SD) WIMP-proton elastic scattering cross-section for χχ → bb¯ and χχ → τ+τ− WIMP annihilation channels. We set current best limit for WIMP mass below 100 GeV.

AB - Super-Kamiokande can search for dark matter by detecting neutrinos and muons which are produced by WIMP pair annihilations occur inside the Sun. The huge gravity and hydrogen-rich composition of the Sun combined with high sensitivity of Super-Kamiokande for low energy(few GeV) neutrinos allow us good sensitivity to light(few GeV to few 10 GeV) WIMP dark matter, especially for spin-dependent coupling case. In this analysis, we increased signal acceptance by using fully-contained and partially-contained neutrino events added to up-going muons in Super-Kamiokande. We also used minimum χ2 method to use energy, direction and flavor informations. We fitted Super-Kamiokande I-IV data to find the allowed contribution of WIMP-induced neutrino events added to large back-ground of atmospheric neutrino events. As a result, we found no signal observed and the null result was interpreted as upper limit on the spin-dependent (SD) WIMP-proton elastic scattering cross-section for χχ → bb¯ and χχ → τ+τ− WIMP annihilation channels. We set current best limit for WIMP mass below 100 GeV.

KW - Indirect WIMP search

KW - Super-Kamiokande

UR - https://www.scopus.com/pages/publications/85052405885

UR - https://www.scopus.com/pages/publications/85052405885#tab=citedBy

M3 - Conference contribution

AN - SCOPUS:85052405885

T3 - Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013

BT - Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013

PB - Sociedade Brasileira de Fisica

T2 - 33rd International Cosmic Rays Conference, ICRC 2013

Y2 - 2 July 2013 through 9 July 2013

ER -

Search for light WIMP captured in the Sun using contained events in Super-Kamiokande

Abstract

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Bibliographical note

Keywords

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