D

Behnke, Elizabeth A.; Connolly, Maureen; Caputo, John D.; Zimmerman, Michael E.; Evans, Jean; Lawlor, Leonard; Makkreel, Rudolf A.; Owensby, Jacob

doi:10.1007/978-94-015-8881-2_5

Cited by 6 publications

(12 citation statements)

References 12 publications

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“…The nature of dark matter (DM) consisting of 85% of the total matter in the Universe [1,2] remains to date a prominent subject of research. The general class of weakly interacting massive particles (WIMPs), can be probed either by their direct detection [3][4][5][6][7][8][9][10][11], at colliders (e.g. [12][13][14][15][16][17][18]), or through indirect detection probes via the identification of WIMP annihilation yields (for some reviews on indirect detection probes see [19][20][21][22] and for a review on WIMP DM candidates see, e.g.…”

Section: Introductionmentioning

confidence: 99%

Constraints on dark matter annihilations from diffuse gamma-ray emission in the Galaxy

Tavakoli

Cholis

Evoli

et al. 2014

J. Cosmol. Astropart. Phys.

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Recent advances in γ-ray cosmic ray, infrared and radio astronomy have allowed us to develop a significantly better understanding of the galactic medium properties in the last few years. In this work using the DRAGON code, that numerically solves the CR propagation equation and calculating γ-ray emissivities in a 2-dimensional grid enclosing the Galaxy, we study in a self consistent manner models for the galactic diffuse γ-ray emission. Our models are cross-checked to both the available CR and γ-ray data. We address the extend to which dark matter annihilations in the Galaxy can contribute to the diffuse γ-ray flux towards different directions on the sky. Moreover we discuss the impact that astrophysical uncertainties of non DM nature, have on the derived γ-ray limits. Such uncertainties are related to the diffusion properties on the Galaxy, the interstellar gas and the interstellar radiation field energy densities. Light ∼10 GeV dark matter annihilating dominantly to hadrons is more strongly constrained by γ-ray observations towards the inner parts of the Galaxy and influenced the most by assumptions of the gas distribution; while TeV scale DM annihilating dominantly to leptons has its tightest constraints from observations towards the galactic center avoiding the galactic disk plane, with the main astrophysical uncertainty being the radiation field energy density. In addition, we present a method of deriving constraints on the dark matter distribution profile from the diffuse γ-ray spectra. These results critically depend on the assumed mass of the dark matter particles and the type of its end annihilation products.

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Section: Introductionmentioning

confidence: 99%

Constraints on dark matter annihilations from diffuse gamma-ray emission in the Galaxy

Tavakoli

Cholis

Evoli

et al. 2014

J. Cosmol. Astropart. Phys.

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“…We expect the AMS02 and DAMPE will solve the anomaly in cosmic rays finally. , DAMA [21,36], COUPP [466], PICASSO [33], KIMS [22], SIMPLE [34], are also shown, together with the preferred regions in MSSM [467]. Figure from [448].…”

Section: Discussionmentioning

confidence: 99%

Status of dark matter detection

Yin

Yuan

2013

Front. Phys.

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The detection of dark matter has made great progresses in recent years. We give a brief review on the status and progress in dark matter detection, including the progresses in direct detection, collider detection at LHC and focus on the indirect detection. The results from PAMELA, ATIC, Fermi-LAT and relevant studies on these results are introduced. Then we give the progress on indirect detection of gamma rays from Fermi-LAT and ground based Cerenkov telescopes. Finally the detection of neutrinos and constraints on the nature of dark matter are reviewed briefly. PACS numbers: 12.60.Jv,14.80.Ly Indirect detection DM DM SM SM New Physics Collider detection Direct detection High energy photon, neutrino, anti-matter Missing transverse energy Nuclear recoil FIG. 1: Schematic plot to show the relation among the direct detection, indirect detection and collider detection of DM. The arrows indicate the direction of reaction.

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“…In order to derive constraints on the parameter space of our DM model, we make use of the latest results from direct detection: XENON100 [20] for SI scattering, XENON10 [17] for SD-neutron scattering, and SIM-PLE [26] and COUPP [28] for SD-proton scattering. To the best of our knowledge these are the strongest published direct detection limits for each type of couplings.…”

Section: B Experimental Datamentioning

confidence: 99%

“…• COUPP [28]. Recently, the COUPP experiment -consisting of a CF 3 I bubble chamber -has released results on WIMP searches for three distinct threshold energies, namely E thr = 7.8, 11.0 and 15.5 keV with total exposures 70.6, 88.5 and 394.0 kg.day, respectively.…”

Section: B Experimental Datamentioning

confidence: 99%

“…Direct searches, in particular, have developed tremendously over the last decade benefiting from the use of various targets and techniques to measure WIMP-induced nuclear recoils. Presently, the situation is rather blurry: while experiments such as DAMA/LIBRA [10][11][12], CoGeNT [13,14] and CRESST [15] report excess of nuclear recoil events and also evidence for annual modulation in the case of DAMA/LIBRA and CoGeNT, other collaborations -including XENON10/100 [16][17][18][19][20], CDMS [21][22][23], SIMPLE [24][25][26] or COUPP [27,28] find null results. Leaving aside this controversy, that has been discussed at length in the literature [29][30][31][32][33][34], it is clear that the whole array of different targets used boasts huge sensitivities to both spin-dependent (SD) and spinindependent (SI) WIMP-nucleus scattering.…”

Section: Introductionmentioning

confidence: 99%

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Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection

Garny

Ibarra

Pato

2012

J. Cosmol. Astropart. Phys.

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Over the last years both cosmic-ray antiproton measurements and direct dark matter searches have proved particularly effective in constraining the nature of dark matter candidates. The present work focusses on these two types of constraints in a minimal framework which features a Majorana fermion as the dark matter particle and a scalar that mediates the coupling to quarks. Considering a wide range of coupling schemes, we derive antiproton and direct detection constraints using the latest data and paying close attention to astrophysical and nuclear uncertainties. Both signals are strongly enhanced in the presence of degenerate dark matter and scalar masses, but we show that the effect is especially dramatic in direct detection. Accordingly, the latest direct detection limits take the lead over antiprotons. We find that antiproton and direct detection data set stringent lower limits on the mass splitting, reaching 19% at a 300 GeV dark matter mass for a unity coupling. Interestingly, these limits are orthogonal to ongoing collider searches at the Large Hadron Collider, making it feasible to close in on degenerate dark matter scenarios within the next years.

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D

Cited by 6 publications

References 12 publications

Constraints on dark matter annihilations from diffuse gamma-ray emission in the Galaxy

Constraints on dark matter annihilations from diffuse gamma-ray emission in the Galaxy

Status of dark matter detection

Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection

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