Dark-Matter Particles without Weak-Scale Masses or Weak Interactions

Feng, Jonathan L.; Kumar, Jason

doi:10.1103/physrevlett.101.231301

Cited by 411 publications

(496 citation statements)

References 36 publications

Supporting

Mentioning

487

Contrasting

Order By: Relevance

“…A large class of models can accommodate DM with sub-GeV masses, see, e.g., [1][2][3][4][5][6][7][8][9]. 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].…”

Section: Jhep11(2013)193mentioning

confidence: 99%

See 1 more Smart Citation

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

Essig

Kuflik

McDermott

et al. 2013

J. High Energ. Phys.

315

431

View full text Add to dashboard Cite

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.

show abstract

Section: Jhep11(2013)193mentioning

confidence: 99%

“…The extragalactic spectrum is calculated by performing the integral in eq. (2.4) 5) normalized such that the total number of photons for 0 < x < 1 is equivalent for galactic and extragalactic photons. As described above, this decay naturally arises if the DM is a light scalar.…”

Section: Two-body Decays With Fsrmentioning

confidence: 99%

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

Essig

Kuflik

McDermott

et al. 2013

J. High Energ. Phys.

315

431

View full text Add to dashboard Cite

show abstract

“…I, left panel). Examples of models which can realize this scenario include WIMPless dark matter [2], and this scenario can be realized in models of leptophilic dark matter [3]. This particular scenario is of interest because it allows one to decouple the dark matter annihilation cross section from bounds arising from direct detection and collider searches.…”

Section: Introductionmentioning

confidence: 99%

Dipole moment bounds on dark matter annihilation

Fukushima

Kumar

2013

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

We consider constraints on simplified models in which scalar dark matter annihilates to light charged leptons through the exchange of charged mediators. We find that loop diagrams will contribute corrections to the magnetic and electric dipole moments of the light charged leptons, and experimental constraints on these corrections place significant bounds on the dark matter annihilation cross section. In particular, annihilation to electrons with an observable cross section would be ruled out, while annihilation to muons is only permitted if the dominant contributions arise from CP -violating interactions.PACS numbers: 95.35.+d 1 arXiv:1307.7120v3 [hep-ph]

show abstract

“…Evidence for self-interactions would therefore point toward a new dark mediator particle φ that is much lighter than the weak scale, typically m φ ∼ 1 − 100 MeV [17]. Light mediators have been widely studied within many different contexts, e.g., hidden sector models [18], light DM models [19,20], Sommerfeld-enhanced models for indirect detection signals [21,22], and in connection with supersymmetry and the WIMP miracle [23][24][25][26]. The light force carrier can be probed by low energy experiments with high luminosities [27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Direct detection portals for self-interacting dark matter

Kaplinghat

Tulin²,

Yu³

2014

Phys. Rev. D

165

229

View full text Add to dashboard Cite

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.

show abstract

Dark-Matter Particles without Weak-Scale Masses or Weak Interactions

Cited by 411 publications

References 36 publications

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

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

Dipole moment bounds on dark matter annihilation

Direct detection portals for self-interacting dark matter

Contact Info

Product

Resources

About