First Direct Detection Limits on Sub-GeV Dark Matter from XENON10

Essig, Rouven; Manalaysay, A.; Mardon, Jeremy; Sørensen, P.; Volansky, Tomer

doi:10.1103/physrevlett.109.021301

Cited by 463 publications

(662 citation statements)

References 36 publications

(76 reference statements)

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“…(22). Current sensitivities from XENON10 at the level of σ SI Xe ∼ 10 −38 cm 2 for sub-GeV mass DM therefore probe this scenario down to ε γ ∼ 10 −4 [57]. Lastly, we discuss indirect detection.…”

Section: Portals For Light Mediatorsmentioning

confidence: 99%

“…[81], for an appropriate choice of q, with little dependence on astrophysical halo properties considered therein. It is also useful to consider the direct detection cross section for DM scattering on electrons, which was proposed as an avenue for detecting sub-GeV DM [56,57]. The SI cross section is…”

Section: Portals For Light Mediatorsmentioning

confidence: 99%

“…Tests for self-interactions within large DM halos, such as in merging clusters [53,54] or halo shape observables [55], are most sensitive to DM masses m X 10 GeV where the self-interaction cross section tends to be more velocity-independent. We also note that direct detection experiments can also probe low mass SIDM as well, via electron recoils [56,57], although the effective reach in couplings is much reduced compared to nuclear recoils.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Direct detection portals for self-interacting dark matter

Kaplinghat

Tulin²,

Yu³

2014

Phys. Rev. D

164

229

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Dark matter self-interactions can affect the small scale structure of the Universe, reducing the central densities of dwarfs and low surface brightness galaxies in accord with observations. From a particle physics point of view, this points toward the existence of a 1 − 100 MeV particle in the dark sector that mediates self-interactions. Since mediator particles will generically couple to the Standard Model, direct detection experiments provide sensitive probes of self-interacting dark matter. We consider three minimal mechanisms for coupling the dark and visible sectors: photon kinetic mixing, Z boson mass mixing, and the Higgs portal. Self-interacting dark matter motivates a new benchmark paradigm for direct detection via momentum-dependent interactions, and ton-scale experiments will cover astrophysically motivated parameter regimes that are unconstrained by current limits. Direct detection is a complementary avenue to constrain velocity-dependent self-interactions that evade astrophysical bounds from larger scales, such as those from the Bullet Cluster.

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Section: Portals For Light Mediatorsmentioning

confidence: 99%

Section: Portals For Light Mediatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Direct detection portals for self-interacting dark matter

Kaplinghat

Tulin²,

Yu³

2014

Phys. Rev. D

164

229

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“…Such DM can be probed at colliders [10][11][12][13][14][15], at direct detection experiments [9,16,17], and at proton-and electron-beam dumps [18][19][20][21][22][23]. Constraints from the Cosmic Microwave Background (CMB) already limit the s-wave DM annihilation cross section to SM matter to be below that of a thermal WIMP, for DM masses below ∼ 7 GeV [24][25][26][27].…”

Section: Jhep11(2013)193mentioning

confidence: 99%

Constraining light dark matter with diffuse X-ray and gamma-ray observations

Essig

Kuflik

McDermott

et al. 2013

J. High Energ. Phys.

Self Cite

311

431

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We present constraints on decaying and annihilating dark matter (DM) in the 4 keV to 10 GeV mass range, using published results from the satellites HEAO-1, INTEGRAL, COMPTEL, EGRET, and the Fermi Gamma-ray Space Telescope. We derive analytic expressions for the gamma-ray spectra from various DM decay modes, and find lifetime constraints in the range 10 24 − 10 28 sec, depending on the DM mass and decay mode. We map these constraints onto the parameter space for a variety of models, including a hidden photino that is part of a kinetically mixed hidden sector, a gravitino with Rparity violating decays, a sterile neutrino, DM with a dipole moment, and a dark pion. The indirect constraints on sterile-neutrino and hidden-photino DM are found to be more powerful than other experimental or astrophysical probes in some parts of parameter space. While our focus is on decaying DM, we also present constraints on DM annihilation to electron-positron pairs. We find that if the annihilation is p-wave suppressed, the galactic diffuse constraints are, depending on the DM mass and velocity at recombination, more powerful than the constraints from the Cosmic Microwave Background.

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“…This work could be extended to include electronic scattering at direct detection [74], though the reduction in the Cherenkov threshold for electrons implies that Super-K limits extend to much lower masses for leptophilic models [7]. The most similar studies to our own which have been recently carried out assumed that DM interacts with the SM through a kinetically mixed photon, implying both hadronic and electronic couplings [7,8].…”

mentioning

confidence: 99%

Direct Detection Phenomenology in Models Where the Products of Dark Matter Annihilation Interact with Nuclei

2015

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We investigate the direct detection phenomenology of a class of dark matter (DM) models in which DM does not directly interact with nuclei, but rather the products of its annihilation do. When these annihilation products are very light compared to the DM mass, the scattering in direct detection experiments is controlled by relativistic kinematics. This results in a distinctive recoil spectrum, a non-standard and or even absent annual modulation, and the ability to probe DM masses as low as a ∼10 MeV. We use current LUX data to show that experimental sensitivity to thermal relic annihilation cross sections has already been reached in a class of models. Moreover, the compatibility of dark matter direct detection experiments can be compared directly in Emin space without making assumptions about DM astrophysics, mass, or scattering form factors. Lastly, when DM has direct couplings to nuclei, the limit from annihilation to relativistic particles in the Sun can be stronger than that of conventional non-relativistic direct detection by more than three orders of magnitude for masses in a 2-7 GeV window.Introduction -While very little is known about Dark Matter (DM), its cosmological abundance is experimentally quite well-determined: Ω CDM h 2 = 0.1199 ± 0.0027 [1]. An appealing framework for understanding the relic abundance of Dark Matter (DM) is thermal freeze-out [2]. Number-changing interactions in the early universe, XX ↔ (SM)SM keep DM in thermal equilibrium with the SM bath, until the rate of these annihilation processes drops below the rate of Hubble expansion. After this point the abundance of DM is essentially fixed at, Ω CDM h 2 0.12 6 × 10 −26 cm 3 s −1 / σ ann v rel , singling out a characteristic annihilation cross section σ ann v rel for thermally produced DM to yield the observed abundance. This scenario is attractive in that it provides a simple and elegant framework for the relic abundance that can be tested in a variety of ways, including direct detection (DD) [3]. However, current constraints from DD rule out many of the simplest models of thermal relic DM, which may indicate a modification of the above picture.In this paper we investigate a modification of thermal DM which alleviates the tension between DD constraints and the thermal relic hypothesis, while making unique predictions for DD. In particular, we take the abundance of DM, X, to be determined by the annihilation process XX ↔ Y Y , where Y is a much lighter dark sector species. The interactions of the dark sector state Y with ordinary nuclei allows for a unique test of the scenario at DD experiments. The resulting DD phenomenology of this class of models is distinctive, owing to the fact that (1) the scattering partner of the nucleus is relativistic, rendering the kinematics of scattering completely different and (2) it is the flux of the scattering partner Y that determines the rate of events at a detector rather than X. Both of these features have novel consequences not considered in the literature of "model-independent" direct detecti...

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First Direct Detection Limits on Sub-GeV Dark Matter from XENON10

Cited by 463 publications

References 36 publications

Direct detection portals for self-interacting dark matter

Direct detection portals for self-interacting dark matter

Constraining light dark matter with diffuse X-ray and gamma-ray observations

Direct Detection Phenomenology in Models Where the Products of Dark Matter Annihilation Interact with Nuclei

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