Results of a search for annual modulation of WIMP signals

被引：28
|
作者：
Sarsa, ML
Morales, A
Morales, J
Garcia, E
deSolorzano, AO
Puimedon, J
Saenz, C
Salinas, A
Villar, JA
机构：
[1] Laboratory of Nuclear and High Energy Physics, University of Zaragoza, Zaragoza
来源：
PHYSICAL REVIEW D | 1997年 / 56卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.56.1856
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A search for particle cold dark matter (CDM) has been carried out at the Canfrane Underground Laboratory (Spain) with a set of three sodium iodide scintillators of 10.7 kg each, during about 2 yr of data taking. The results, corresponding to an exposure of 4613.6 kg day are presented in the form of exclusion plots of the WIMP-target nuclei cross section versus WIMP mass (both Tor spin-independent and spin-dependent WIMP-matter interactions), obtained with the standard method of comparing the observed ate with the expected signal. A distinctive feature of the CDM signal, like: its expected annual modulation, has also been looked for in 1342.8 kg day of data. The nonobservance of such a modulation has been used to draw more stringent exclusion plots than those derived from the standard method.
引用
收藏
页码：1856 / 1862
页数：7
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