Particle dark matter in the galactic halo: recent results from DAMA/LIBRA

被引：17
|
作者：
Bernabei, R. [1 ,2 ]
Belli, P. [1 ,2 ]
Montecchia, F. [1 ,2 ,3 ]
Nozzoli, F. [1 ,2 ]
Cappella, F. [4 ,5 ]
d'Angelo, A. [4 ,5 ]
Incicchitti, A. [4 ,5 ]
Prosperi, D. [4 ,5 ]
Cerulli, R. [6 ]
Dai, C. J. [7 ]
He, H. L. [7 ]
Ma, X. H. [7 ]
Sheng, X. D. [7 ]
Wang, R. G. [7 ]
Ye, Z. P. [7 ,8 ]
机构：
[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy
[3] Univ Roma Tor Vergata, Lab Sperim Policentr Ingn Med, I-00133 Rome, Italy
[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[5] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy
[6] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, Italy
[7] Chinese Acad, IHEP, Beijing 100039, Peoples R China
[8] Univ Jing Gangshan, Jian, Jiangxi, Peoples R China
来源：
CANADIAN JOURNAL OF PHYSICS | 2011年 / 89卷 / 01期
关键词：
BETA-BETA-DECAY; NON-PAULIAN TRANSITIONS; ANNUAL MODULATION DATA; NAI(TL) SET-UP; SPECTRAL-ANALYSIS; SOLAR AXIONS; SEARCH; LIMITS; CRYSTAL; PERFORMANCES;
D O I：
10.1139/P10-098
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The DAMA/LIBRA experiment has a sensitive mass of about 250 kg highly radiopure NaI(Tl). It is running at the Gran Sasso National Laboratory of the INFN in Italy and is mainly devoted to the investigation of dark matter (DM) particles in the galactic halo by exploiting the model-independent DM annual modulation signature. The present DAMA/LIBRA and the former DAMA/NaI experiments (the first generation experiment having an exposed mass of about 100 kg) have thus far cumulatively released the results of data collected over 13 annual cycles (total exposure: 1.17 t year). They give model-independent evidence of the presence of DM particles in the galactic halo on the basis of the investigated DM signature at 8.9 sigma C.L. for the cumulative exposure. The main aspects of the obtained results are summarized and some comments are addressed.
引用
收藏
页码：141 / 152
页数：12
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