Astrophysics-Independent Bounds on the Annual Modulation of Dark Matter Signals

被引：56

作者：

Herrero-Garcia, Juan ^{[1
,2
]}

Schwetz, Thomas ^{[3
]}

Zupan, Jure ^{[4
]}

机构：

[1] Univ Valencia, CSIC, Dept Fis Teor, E-46071 Valencia, Spain

[2] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain

[3] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[4] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 14期

基金：

美国国家科学基金会;

关键词：

Delta modulation - Galaxies;

D O I：

10.1103/PhysRevLett.109.141301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show how constraints on the time integrated event rate from a given dark matter (DM) direct detection experiment can be used to bound the amplitude of the annual modulation signal in another experiment. The method requires only mild assumptions about the properties of the local DM distribution: that it is temporally stable on the scale of months and spatially homogeneous on the ecliptic. We apply the method to the annual modulation signal in DAMA/LIBRA, which we compare to the bounds derived from XENON10, XENON100, cryogenic DM search, and SIMPLE data. Assuming a DM mass of 10 GeV, we show that under the above assumptions about the DM halo, a DM interpretation of the DAMA/LIBRA signal is excluded for several classes of models: at 6.3 sigma (4.6 sigma) for elastic isospin conserving (violating) spin-independent interactions, and at 4.9 sigma for elastic spin-dependent interactions on protons.

引用

页数：5

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