A search for the dark matter annual modulation in South Pole ice

被引：24

作者：

Cherwinka, J. ^{[2
]}

Co, R. ^{[1
]}

Cowen, D. F. ^{[3
,4
]}

Grant, D. ^{[5
]}

Halzen, F. ^{[6
]}

Heeger, K. M. ^{[6
]}

Hsu, L. ^{[1
]}

Karle, A. ^{[6
]}

Kudryavtsev, V. A. ^{[7
]}

Maruyama, R. ^{[6
]}

Pettus, W. ^{[6
]}

Robinson, M. ^{[7
]}

Spooner, N. J. C. ^{[7
]}

机构：

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

[2] Univ Wisconsin, Phys Sci Lab, Stoughton, WI 53589 USA

[3] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[4] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[5] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[6] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[7] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

来源：

ASTROPARTICLE PHYSICS | 2012年 / 35卷 / 11期

基金：

美国能源部;

关键词：

Dark matter; Direct detection; Annual modulation; DAMA; South Pole; LIMITS; DAMA/LIBRA; EXPOSURE;

D O I：

10.1016/j.astropartphys.2012.03.003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Astrophysical observations and cosmological data have led to the conclusion that nearly one quarter of the Universe consists of dark matter. Should dark matter interact with nucleons, it has been postulated that an observable signature of dark matter is an annual modulation in the rate of dark matter-nucleon interactions taking place in an Earth-bound experiment. To search for this effect, we introduce the concept for a new dark matter experiment using NaI scintillation detectors deployed deep in the South Pole ice. This experiment complements dark matter search efforts in the Northern Hemisphere and will investigate the observed annual modulation in the DAMA/LIBRA and DAMA/NaI experiments. The unique location will permit the study of background effects correlated with seasonal variations and the surrounding environment. This paper describes the experimental concept and explores the sensitivity of a 250 kg NaI experiment at the South Pole. Published by Elsevier B.V.

引用

页码：749 / 754

页数：6

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