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Dark matter self-interactions have important implications for the distributions of dark matter in the Universe, from dwarf galaxies to galaxy clusters. We present benchmark models that illustrate characteristic features of dark matter that…

High Energy Physics - Phenomenology · Physics 2013-10-25 Manoj Kaplinghat , Sean Tulin , Hai-Bo Yu

Recent observations by the CoGeNT collaboration (as well as long standing observations by DAMA/LIBRA) suggest the presence of a $\sim 5$-10 GeV dark matter particle with a somewhat large elastic scattering cross section with nucleons…

High Energy Physics - Phenomenology · Physics 2011-10-13 Alexander V. Belikov , John F. Gunion , Dan Hooper , Tim M. P. Tait

The identity of dark matter is a question of central importance in both astrophysics and particle physics. In the past, the leading particle candidates were cold and collisionless, and typically predicted missing energy signals at particle…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-03 Jonathan L. Feng

It is generally assumed that the two dark components of the energy density of the universe, a smooth component called dark energy and a fluid of nonrelativistic weakly interacting particles called dark matter, are independent of each other…

Astrophysics · Physics 2007-05-23 Mark B. Hoffman

A fraction of the dark matter may consist of a particle species that interacts much more strongly with the Standard Model than a typical weakly interacting massive particle (WIMP) of similar mass. Such a strongly interacting dark matter…

High Energy Physics - Phenomenology · Physics 2022-08-12 David McKeen , Marianne Moore , David E. Morrissey , Maxim Pospelov , Harikrishnan Ramani

We discuss the positive indications of a possible dark matter signal in direct detection experiments in terms of a mechanism of interaction between the dark matter particle and the nuclei occurring via the exchange of a light mediator,…

High Energy Physics - Phenomenology · Physics 2013-05-29 N. Fornengo , P. Panci , M. Regis

Dark matter is a well-established theoretical addition to the Standard Model supported by many observations in modern astrophysics and cosmology. In this context, the existence of weakly interacting massive particles represents an appealing…

High Energy Physics - Experiment · Physics 2021-06-03 SHiP Collaboration

Neutron stars contain a significant number of stable muons due to the large chemical potential and degenerate electrons. This makes them the unique vessel to capture muonphilic dark matter, which does not interact with other astrophysical…

High Energy Physics - Phenomenology · Physics 2019-09-04 Raghuveer Garani , Julian Heeck

Dark matter could emerge along with the Higgs as a composite pseudo-Nambu-Goldstone boson $\chi$ with decay constant $f\sim \mathrm{TeV}$. This type of WIMP is especially compelling because its leading interaction with the Standard Model,…

High Energy Physics - Phenomenology · Physics 2018-12-20 Reuven Balkin , Maximilian Ruhdorfer , Ennio Salvioni , Andreas Weiler

We present a search for low-mass ($\leq 20 GeV/c^{2}$) weakly interacting massive particles(WIMPs), strong candidates of dark matter particles,using the low-background CsI(Tl) detector array of the Korea Invisible Mass Search (KIMS)…

Despite significant experimental sensitivity to point-like, weakly interacting particles at the electroweak mass scale, dark matter has not been found yet. This could hint at a more complex dark sector with multiple states or composite dark…

High Energy Physics - Phenomenology · Physics 2023-01-02 Juri Smirnov

We search for the dark photon dark matter (DPDM) using a cryogenic millimeter-wave receiver. DPDM has a kinetic coupling with electromagnetic fields with a coupling constant of $\chi$, and is converted into ordinary photons at the surface…

We consider the proposal that dark matter (DM) is composed of a spin-3/2 particle that is a singlet of the standard model (SM). Its leading effective interactions with ordinary matter involve a pair of their fields and a pair of SM…

High Energy Physics - Phenomenology · Physics 2013-05-31 Ran Ding , Yi Liao , Ji-Yuan Liu , Kai Wang

We consider electromagnetically neutral dark states that couple to the photon through higher dimensional effective operators, such as electric and magnetic dipole moment, anapole moment and charge radius operators. We investigate the…

High Energy Physics - Phenomenology · Physics 2020-04-20 Xiaoyong Chu , Jui-Lin Kuo , Josef Pradler

We review theoretically well-motivated dark-matter candidates, and pathways to their discovery, in the light of recent results from collider physics, astrophysics, and cosmology. Taken in aggregate, these encourage broader thinking in…

High Energy Physics - Phenomenology · Physics 2015-06-15 Susan Gardner , George Fuller

Dark matter candidates arising in models of particle physics incorporating weak scale supersymmetry may produce detectable signals through their annihilation into neutrinos, photons, or positrons. A large number of relevant experiments are…

Astrophysics · Physics 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Frank Wilczek

In the presence of approximate global symmetries that forbid relevant interactions, strongly coupled light Dark Matter (DM) can appear weakly coupled at small energy and generate a sizable relic abundance. Fundamental principles like…

High Energy Physics - Phenomenology · Physics 2017-09-27 Sebastian Bruggisser , Francesco Riva , Alfredo Urbano

Diverse astrophysical observations suggest the existence of cold dark matter that interacts only gravitationally with radiation and ordinary baryonic matter. Any nonzero coupling between dark matter and baryons would provide a significant…

The Large Hadron electron Collider (LHeC) has been designed to push the field of deep inelastic scattering to the high energy and intensity frontier using an intense electron beam with a proton beam from the High Luminosity-Large Hadron…

High Energy Physics - Phenomenology · Physics 2023-05-17 Guo-yuan Huang , Sudip Jana , Alvaro S. de Jesus , Farinaldo S. Queiroz , Werner Rodejohann
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