New results from the Cryogenic Dark Matter Search experiment

被引：119

作者：

Akerib, DS ^{[1
]}

Alvaro-Dean, J

Armel, MS

Attisha, MJ

Baudis, L

Bauer, DA

Bolozdynya, AI

Brink, PL

Bunker, R

Cabrera, B

Caldwell, DO

Castle, JP

Chang, CL

Clarke, RM

Crisler, MB

Cushman, P

Davies, AK

Dixon, R

Driscoll, DD

Duong, L

Emes, J

Ferril, R

Gaitskell, RJ

Golwala, SR

Haldeman, M

Hellmig, J

Hennessey, M

Holmgren, D

Huber, ME

Kamat, S

Kurylowicz, M

Lu, A

Mahapatra, R

Mandic, V

Martinis, JM

Meunier, P

Mirabolfathi, N

Nam, SW

Nelson, H

Nelson, R

Ogburn, RW

Perales, J

Perera, TA

Isaac, MCI

Rau, W

Reisetter, A

Ross, RR

Saab, T

Sadoulet, B

Sander, J

机构：

[1] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[2] Brown Univ, Dept Phys, Providence, RI 02912 USA

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

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[5] Natl Inst Stand & Technol, Boulder, CO 80303 USA

[6] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[7] Santa Clara Univ, Dept Phys, Santa Clara, CA 95053 USA

[8] Univ Minnesota, Dept Phys & Astron, Minneapolis, MN 55455 USA

[9] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[10] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[11] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[12] Univ Colorado, Dept Phys, Denver, CO 80217 USA

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.68.082002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using improved Ge and Si detectors, better neutron shielding, and increased counting time, the Cryogenic Dark Matter Search (CDMS) experiment has obtained stricter limits on the cross section of weakly interacting massive particles (WIMPs) elastically scattering from nuclei. Increased discrimination against electromagnetic backgrounds and reduction of the neutron flux confirm WIMP-candidate events previously detected by CDMS were consistent with neutrons and give limits on spin-independent WIMP interactions which are >2x lower than previous CDMS results for high WIMP mass, and which exclude new parameter space for WIMPs with mass between 8 and 20 GeV/c(2).

引用

页数：4

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