Using the energy spectrum measured by DAMA/LIBRA to probe light dark matter

被引：52

作者：

Chang, Spencer ^{[1
]}

Pierce, Aaron ^{[2
]}

Weiner, Neal ^{[1
]}

机构：

[1] New York Univ, Ctr Cosmol & Particle Phys, New York, NY 10003 USA

[2] Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 11期

关键词：

SIGNAL;

D O I：

10.1103/PhysRevD.79.115011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A weakly interacting massive particle (WIMP) weighing only a few GeV has been invoked as an explanation for the signal from the DAMA/LIBRA experiment. We show that the data from DAMA/LIBRA are now powerful enough to strongly constrain the properties of any putative WIMP. Accounting for the detailed recoil spectrum, a light WIMP with a Maxwellian velocity distribution and a spin-independent interaction cannot account for the data. Even neglecting the spectrum, significant parameter space is excluded by a limit that can be derived from the DAMA unmodulated signal at low energies. Appreciable modification to the astrophysics or particle physics can open light mass windows.

引用

页数：6

共 28 条

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