A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA

Hooper, Dan; Collar, J. I.; Hall, Jeter; McKinsey, Dan; Kelso, Chris

doi:10.1103/PhysRevD.82.123509

Title: A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA

Journal Article · Thu Jul 01 00:00:00 EDT 2010 · Phys.Rev.D

DOI:https://doi.org/10.1103/PhysRevD.82.123509· OSTI ID:1985072

^[1]; Collar, J. I. ^[2]; Hall, Jeter ^[3]; McKinsey, Dan ^[4];

^[5]

Fermilab; Chicago U., Astron. Astrophys. Ctr.
Chicago U., KICP; Chicago U., EFI; Chicago U.
Fermilab
Yale U.
Chicago U.

In this paper, we study the recent excess of low energy events observed by the CoGeNT collaboration and the annual modulation reported by the DAMA/LIBRA collaboration, and discuss whether these signals could both be the result of the same elastically scattering dark matter particle. We find that, without channeling but when taking into account uncertainties in the relevant quenching factors, a dark matter candidate with a mass of approximately ~7.0 GeV and a cross section with nucleons of sigma_{DM-N} ~2x10^-4 pb (2x10^-40 cm^2) could account for both of these observations. We also comment on the events recently observed in the oxygen band of the CRESST experiment and point out that these could potentially be explained by such a particle. Lastly, we compare the region of parameter space favored by DAMA/LIBRA and CoGeNT to the constraints from XENON 10, XENON 100, and CDMS (Si) and find that these experiments cannot at this time rule out a dark matter interpretation of these signals.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1985072

Report Number(s):: FERMILAB-PUB-10-222-A; arXiv:1007.1005; oai:inspirehep.net:860634

Journal Information:: Phys.Rev.D, Vol. 82

Country of Publication:: United States

Language:: English

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