Search for an Annual Modulation in a p-Type Point Contact Germanium Dark Matter Detector

被引：416

作者：

Aalseth, C. E. ^{[3
]}

Barbeau, P. S. ^{[1
,2
]}

Colaresi, J. ^{[4
]}

Collar, J. I. ^{[1
,2
]}

Leon, J. Diaz ^{[5
,6
]}

Fast, J. E. ^{[3
]}

Fields, N. ^{[1
,2
]}

Hossbach, T. W. ^{[1
,2
,3
]}

Keillor, M. E. ^{[3
]}

Kephart, J. D. ^{[3
]}

Knecht, A. ^{[5
,6
]}

Marino, M. G. ^{[5
,6
]}

Miley, H. S. ^{[3
]}

Miller, M. L. ^{[5
,6
]}

Orrell, J. L. ^{[3
]}

Radford, D. C. ^{[7
]}

Wilkerson, J. F. ^{[8
]}

Yocum, K. M. ^{[4
]}

机构：

[1] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[2] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[3] Pacific NW Natl Lab, Richland, WA 99352 USA

[4] CANBERRA Ind, Meriden, CT 06450 USA

[5] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA

[6] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[7] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[8] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.107.141301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Fifteen months of cumulative CoGeNT data are examined for indications of an annual modulation, a predicted signature of weakly interacting massive particle (WIMP) interactions. Presently available data support the presence of a modulated component of unknown origin, with parameters prima facie compatible with a galactic halo composed of light-mass WIMPs. Unoptimized estimators yield a statistical significance for a modulation of similar to 2.8 sigma, limited by the short exposure.

引用

页数：5

共 31 条

[1] Results from a Search for Light-Mass Dark Matter with a p-Type Point Contact Germanium Detector
Aalseth, C. E.
Barbeau, P. S.
Bowden, N. S.
Cabrera-Palmer, B.
Colaresi, J.
Collar, J. I.
Dazeley, S.
de Lurgio, P.
Fast, J. E.
Fields, N.
Greenberg, C. H.
Hossbach, T. W.
Keillor, M. E.
Kephart, J. D.
Marino, M. G.
Miley, H. S.
Miller, M. L.
Orrell, J. L.
Radford, D. C.
Reyna, D.
Tench, O.
Van Wechel, T. D.
Wilkerson, J. F.
Yocum, K. M.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (13)
[2] Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect (vol 101, 251301, 2008)
Aalseth, C. E.
Barbeau, P. S.
Cerdeno, D. G.
Colaresi, J.
Collar, J. I.
de Lurgio, P.
Drake, G.
Fast, J. E.
Greenberg, C. H.
Hossbach, T. W.
Kephart, J. D.
Marino, M. G.
Miley, H. S.
Orrell, J. L.
Reyna, D.
Robertson, R. G. H.
Talaga, R. L.
Tench, O.
Van Wechel, T. D.
Wilkerson, J. F.
Yocum, K. M.
[J]. PHYSICAL REVIEW LETTERS, 2009, 102 (10)
[3] Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect
Aalseth, C. E.
Barbeau, P. S.
Cerdeno, D. G.
Colaresi, J.
Collar, J. I.
de Lurgio, P.
Drake, G.
Fast, J. E.
Greenberg, C. H.
Hossbach, T. W.
Kephart, J. D.
Marino, M. G.
Miley, H. S.
Orrell, J. L.
Reyna, D.
Robertson, R. G. H.
Talaga, R. L.
Tench, O.
Van Wechel, T. D.
Wilkerson, J. F.
Yocum, K. M.
[J]. PHYSICAL REVIEW LETTERS, 2008, 101 (25)
[4] Results from a Low-Energy Analysis of the CDMS II Germanium Data
Ahmed, Z.
Akerib, D. S.
Arrenberg, S.
Bailey, C. N.
Balakishiyeva, D.
Baudis, L.
Bauer, D. A.
Brink, P. L.
Bruch, T.
Bunker, R.
Cabrera, B.
Caldwell, D. O.
Cooley, J.
do Couto e Silva, E.
Cushman, P.
Daal, M.
DeJongh, F.
Di Stefano, P.
Dragowsky, M. R.
Duong, L.
Fallows, S.
Figueroa-Feliciano, E.
Filippini, J.
Fox, J.
Fritts, M.
Golwala, S. R.
Hall, J.
Hennings-Yeomans, R.
Hertel, S. A.
Holmgren, D.
Hsu, L.
Huber, M. E.
Kamaev, O.
Kiveni, M.
Kos, M.
Leman, S. W.
Liu, S.
Mahapatra, R.
Mandic, V.
McCarthy, K. A.
Mirabolfathi, N.
Moore, D.
Nelson, H.
Ogburn, R. W.
Phipps, A.
Pyle, M.
Qiu, X.
Ramberg, E.
Rau, W.
Reisetter, A.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (13)
[5] AHMED Z, ARXIV10112482V3
[6] Low-threshold analysis of CDMS shallow-site data
Akerib, D. S.
Attisha, M. J.
Baudis, L.
Bauer, D. A.
Bolozdynya, A. I.
Brink, P. L.
Bunker, R.
Cabrera, B.
Caldwell, D. O.
Chang, C. L.
Clarke, R. M.
Cooley, J.
Crisler, M. B.
Cushman, P.
DeJongh, F.
Dixon, R.
Driscoll, D. D.
Filippini, J.
Funkhouser, S.
Gaitskell, R. J.
Golwala, S. R.
Holmgren, D.
Hsu, L.
Huber, M. E.
Kamat, S.
Mahapatra, R.
Mandic, V.
Meunier, P.
Mirabolfathi, N.
Moore, D.
Nam, S. W.
Nelson, H.
Ogburn, R. W.
Qiu, X.
Rau, W.
Reisetter, A.
Saab, T.
Sadoulet, B.
Sander, J.
Savage, C.
Schnee, R. W.
Seitz, D. N.
Shutt, T. A.
Wang, G.
Yellin, S.
Yoo, J.
Young, B. A.
[J]. PHYSICAL REVIEW D, 2010, 82 (12)
[7] Search for Light Dark Matter in XENON10 Data
Angle, J.
Aprile, E.
Arneodo, F.
Baudis, L.
Bernstein, A.
Bolozdynya, A. I.
Coelho, L. C. C.
Dahl, C. E.
DeViveiros, L.
Ferella, A. D.
Fernandes, L. M. P.
Fiorucci, S.
Gaitskell, R. J.
Giboni, K. L.
Gomez, R.
Hasty, R.
Kastens, L.
Kwong, J.
Lopes, J. A. M.
Madden, N.
Manalaysay, A.
Manzur, A.
McKinsey, D. N.
Monzani, M. E.
Ni, K.
Oberlack, U.
Orboeck, J.
Plante, G.
Santorelli, R.
dos Santos, J. M. F.
Schulte, S.
Shagin, P.
Shutt, T.
Sorensen, P.
Winant, C.
Yamashita, M.
[J]. PHYSICAL REVIEW LETTERS, 2011, 107 (05)
[8] APRILE E, ARXIV11042549
[9] EXCHANGE AND OVERLAP EFFECTS IN ELECTRON CAPTURE AND IN RELATED PHENOMENA
BAHCALL, JN
[J]. PHYSICAL REVIEW, 1963, 132 (01): : 362 - +
[10] Large-mass ultralow noise germanium detectors: performance and applications in neutrino and astroparticle physics
Barbeau, P. S.
Collar, J. I.
Tench, O.
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2007, (09):

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