Dark Matter Search in a Proton Beam Dump with MiniBooNE

被引：87

作者：

Aguilar-Arevalo, A. A. ^{[1
]}

Backfish, M. ^{[2
]}

Bashyal, A. ^{[3
]}

Batell, B. ^{[4
]}

Brown, B. C. ^{[2
]}

Carr, R. ^{[5
]}

Chatterjee, A. ^{[3
]}

Cooper, R. L. ^{[6
,7
]}

Deniverville, P. ^{[8
]}

Dharmapalan, R. ^{[9
]}

Djurcic, Z. ^{[9
]}

Ford, R. ^{[2
]}

Garcia, F. G. ^{[2
]}

Garvey, G. T.

Grange, J. ^{[9
,11
]}

Green, J. A. ^{[10
]}

Huelsnitz, W. ^{[10
]}

Astiz, I. L. de Icaza ^{[1
]}

Karagiorgi, G. ^{[5
]}

Katori, T. ^{[12
]}

Ketchum, W. ^{[10
]}

Kobilarcik, T. ^{[2
]}

Liu, Q. ^{[10
]}

Louis, W. C. ^{[10
]}

Marsh, W. ^{[2
]}

Moore, C. D. ^{[2
]}

Mills, G. B. ^{[10
]}

Mirabal, J. ^{[10
]}

Nienaber, P. ^{[13
]}

Pavlovic, Z. ^{[10
]}

Perevalov, D. ^{[2
]}

Ray, H. ^{[11
]}

Roe, B. P. ^{[14
]}

Shaevitz, M. H. ^{[5
]}

Shahsavarani, S. ^{[3
]}

Stancu, I. ^{[15
]}

Tayloe, R. ^{[6
]}

Taylor, C. ^{[10
]}

Thornton, R. T. ^{[6
]}

Van de Water, R. ^{[10
]}

Wester, W. ^{[2
]}

White, D. H. ^{[10
]}

Yu, J. ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[3] Univ Texas Arlington, Arlington, TX 76019 USA

[4] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[5] Columbia Univ, New York, NY 10027 USA

[6] Indiana Univ, Bloomington, IN 47405 USA

[7] New Mexico State Univ, Las Cruces, NM 88003 USA

[8] Inst for Basic Sci Korea, Ctr Theoret Phys Universe, Daejeon 34051, South Korea

[9] Argonne Natl Lab, Argonne, IL 60439 USA

[10] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[11] Univ Florida, Gainesville, FL 32611 USA

[12] Queen Mary Univ London, London E1 4NS, England

[13] St Marys Univ Minnesota, Winona, MN 55987 USA

[14] Univ Michigan, Ann Arbor, MI 48111 USA

[15] Univ Alabama, Tuscaloosa, AL 35487 USA

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 22期

基金：

英国科学技术设施理事会; 美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.118.221803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The MiniBooNE-DM Collaboration searched for vector-boson mediated production of dark matter using the Fermilab 8-GeV Booster proton beam in a dedicated run with 1.86 x 10(20) protons delivered to a steel beam dump. The MiniBooNE detector, 490 m downstream, is sensitive to dark matter via elastic scattering with nucleons in the detector mineral oil. Analysis methods developed for previous MiniBooNE scattering results were employed, and several constraining data sets were simultaneously analyzed to minimize systematic errors from neutrino flux and interaction rates. No excess of events over background was observed, leading to a 90% confidence limit on the dark matter cross section parameter, Y = epsilon(2)alpha(D)(m(chi)/m(V))(4) less than or similar to 10(-8), for alpha(D) = 0.5 and for dark matter masses of 0.01 < m(chi) < 0.3 GeV in a vector portal model of dark matter. This is the best limit from a dedicated proton beam dump search in this mass and coupling range and extends below the mass range of direct dark matter searches. These results demonstrate a novel and powerful approach to dark matter searches with beam dump experiments.

引用

页数：6

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