Search for an annual modulation in a p-type point contact Germanium dark matter detector

C. E. Aalseth; P. S. Barbeau; J. Colaresi; J. I. Collar; J. Diaz Leon; J. E. Fast; N. Fields; T. W. Hossbach; M. E. Keillor; J. D. Kephart; A. Knecht; M. G. Marino; H. S. Miley; M. L. Miller; J. L. Orrell; D. C. Radford; J. F. Wilkerson; K. M. Yocum

doi:10.1103/PhysRevLett.107.141301

Search for an annual modulation in a p-type point contact Germanium dark matter detector

C. E. Aalseth, P. S. Barbeau, J. Colaresi, J. I. Collar, J. Diaz Leon, J. E. Fast, N. Fields, T. W. Hossbach, M. E. Keillor, J. D. Kephart, A. Knecht, M. G. Marino, H. S. Miley, M. L. Miller, J. L. Orrell, D. C. Radford, J. F. Wilkerson, K. M. Yocum

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Abstract

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 ∼2.8σ, limited by the short exposure.

Original language	English
Article number	141301
Journal	Physical Review Letters
Volume	107
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.107.141301
State	Published - Sep 26 2011

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Aalseth, C. E., Barbeau, P. S., Colaresi, J., Collar, J. I., Diaz Leon, J., Fast, J. E., Fields, N., Hossbach, T. W., Keillor, M. E., Kephart, J. D., Knecht, A., Marino, M. G., Miley, H. S., Miller, M. L., Orrell, J. L., Radford, D. C., Wilkerson, J. F., & Yocum, K. M. (2011). Search for an annual modulation in a p-type point contact Germanium dark matter detector. Physical Review Letters, 107(14), Article 141301. https://doi.org/10.1103/PhysRevLett.107.141301

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title = "Search for an annual modulation in a p-type point contact Germanium dark matter detector",

abstract = "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 ∼2.8σ, limited by the short exposure.",

author = "Aalseth, {C. E.} and Barbeau, {P. S.} and J. Colaresi and Collar, {J. I.} and {Diaz Leon}, J. and Fast, {J. E.} and N. Fields and Hossbach, {T. W.} and Keillor, {M. E.} and Kephart, {J. D.} and A. Knecht and Marino, {M. G.} and Miley, {H. S.} and Miller, {M. L.} and Orrell, {J. L.} and Radford, {D. C.} and Wilkerson, {J. F.} and Yocum, {K. M.}",

year = "2011",

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doi = "10.1103/PhysRevLett.107.141301",

language = "English",

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Aalseth, CE, Barbeau, PS, Colaresi, J, Collar, JI, Diaz Leon, J, Fast, JE, Fields, N, Hossbach, TW, Keillor, ME, Kephart, JD, Knecht, A, Marino, MG, Miley, HS, Miller, ML, Orrell, JL, Radford, DC, Wilkerson, JF & Yocum, KM 2011, 'Search for an annual modulation in a p-type point contact Germanium dark matter detector', Physical Review Letters, vol. 107, no. 14, 141301. https://doi.org/10.1103/PhysRevLett.107.141301

TY - JOUR

T1 - Search for an annual modulation in a p-type point contact Germanium dark matter detector

AU - Aalseth, C. E.

AU - Barbeau, P. S.

AU - Colaresi, J.

AU - Collar, J. I.

AU - Diaz Leon, J.

AU - Fast, J. E.

AU - Fields, N.

AU - Hossbach, T. W.

AU - Keillor, M. E.

AU - Kephart, J. D.

AU - Knecht, A.

AU - Marino, M. G.

AU - Miley, H. S.

AU - Miller, M. L.

AU - Orrell, J. L.

AU - Radford, D. C.

AU - Wilkerson, J. F.

AU - Yocum, K. M.

PY - 2011/9/26

Y1 - 2011/9/26

N2 - 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 ∼2.8σ, limited by the short exposure.

AB - 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 ∼2.8σ, limited by the short exposure.

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U2 - 10.1103/PhysRevLett.107.141301

DO - 10.1103/PhysRevLett.107.141301

M3 - Article

AN - SCOPUS:80053210378

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 141301

ER -

Search for an annual modulation in a p-type point contact Germanium dark matter detector

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