Consistent dark matter interpretation for CoGeNT and DAMA/LIBRA

Hooper, Dan; Collar, J. I.; Hall, J.; McKinsey, D. N.; Kelso, Christopher M.

doi:10.1103/physrevd.82.123509

Cited by 138 publications

(203 citation statements)

References 75 publications

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“…We also find the H 2 has a mass between 110 to 180 GeV with the lower and upper bound arising from the LEP ZZH 2 and EWPO constraints, respectively. To also be consistent with the CoGeNT and DAMA/LIBRA DM signal, the DM mass is restricted to the ∼ 7 GeV region, for which the SI cross section is ∼ 10 −40 cm 2 [89]. In our scans, we find only a few points that fall within the DAMA/LIBRA allowed region.…”

Section: Discussionmentioning

confidence: 85%

Complex scalar dark mattervis-à-visCoGeNT, DAMA/LIBRA, and XENON100

2010

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The CoGeNT and DAMA/LIBRA experiments have found evidence for the spin-independent scattering from nuclei of a light dark matter (DM) particle, 7-12 GeV, which is not excluded by the XENON DM experiments. We show that this putative DM signal can be explained by a complex scalar singlet extension of the standard model (CSM), with a thermal cosmological DM density, and a Higgs sector that is consistent with LEP constraints. We make predictions for the masses, production, and decays of the two Higgs mass eigenstates and describe how the Higgs and DM particles can be discovered at the LHC.

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Section: Discussionmentioning

confidence: 85%

Complex scalar dark mattervis-à-visCoGeNT, DAMA/LIBRA, and XENON100

2010

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“…We show the constraints on spin-independent scattering from CDMS [2], CoGeNT [36], CRESST [37], DAMA [38], and XENON-100 [3], and the constraints on spin-dependent scattering from COUPP [39], DAMA [38], PICASSO [40], SIM-PLE [41], and XENON-10 [42]. We have assumed large systematic uncertainties on the DAMA quenching factors: q Na = 0.3 ± 0.1 for sodium and q I = 0.09 ± 0.03 for iodine [43], which gives rise to an enlargement of the DAMA allowed regions. All limits are shown at the 90% confidence level.…”

Section: E Comparison With Direct Detection and Annihilation Cross Smentioning

confidence: 99%

Taking a razor to dark matter parameter space at the LHC

et al. 2012

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Dark matter (DM) has been searched for at colliders in a largely model independent fashion by looking for an excess number of events involving a single jet, or photon, and missing energy. We investigate the possibility of looking for excesses in more inclusive jet channels. Events with multiple jets contain more information and thus more handles to increase the signal to background ratio. In particular, we adapt the recent CMS "razor" analysis from a search for supersymmetry to a search for DM and estimate the potential reach. The region of razor variables which are most sensitive to dark matter are not covered by the current SUSY search. We consider simplified models where DM is a Dirac fermion that couples to the quarks of the Standard Model (SM) through exchange of vector or axial-vector mediators or to gluons through scalar exchange. We consider both light and heavy (leading to effective contact interactions) mediators. Since the razor analysis requires multiple jets in the final state, the data set is complementary to that used for the monojet search and thus the bounds can be combined. * Electronic address: pjfox@fnal.gov † Electronic address: roni@fnal.gov ‡ Electronic address:

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“…In recent years, several have reported anomalous results that are consistent with a light dark matter particle with mass of order 10 GeV [1][2][3] (however, see [4][5][6] as well), leading to a surge of interest in the possibility of light dark matter [7][8][9][10][11][12][13][14][15]. Another experimental probe which is particularly effective for light dark matter is to look for signals of dark matter production at colliders.…”

Section: Introductionmentioning

confidence: 99%

Gamma ray line constraints on effective theories of dark matter

et al. 2011

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A monochromatic gamma ray line results when dark matter particles in the galactic halo annihilate to produce a two body final state which includes a photon. Such a signal is very distinctive from astrophysical backgrounds, and thus represents an incisive probe of theories of dark matter.We compare the recent null results of searches for gamma ray lines in the galactic center and other regions of the sky with the predictions of effective theories describing the interactions of dark matter particles with the Standard Model. We find that the null results of these searches provide constraints on the nature of dark matter interactions with ordinary matter which are complementary to constraints from other observables, and stronger than collider constraints in some cases.

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Consistent dark matter interpretation for CoGeNT and DAMA/LIBRA

Cited by 138 publications

References 75 publications

Complex scalar dark mattervis-à-visCoGeNT, DAMA/LIBRA, and XENON100

Complex scalar dark mattervis-à-visCoGeNT, DAMA/LIBRA, and XENON100

Taking a razor to dark matter parameter space at the LHC

Gamma ray line constraints on effective theories of dark matter

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