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Scattering of sub-GeV dark matter (DM) particles with hydrogen atoms is studied in this paper. The interactions of DM with electrons and nucleons are both included and formulated in a general framework based on nonrelativistic effective…

High Energy Physics - Phenomenology · Physics 2015-12-09 Jiunn-Wei Chen , Hsin-Chang Chi , C. -P. Liu , Chih-Liang Wu , Chih-Pan Wu

We reappraise the viability of asymmetric dark matter (ADM) realized as a Dirac fermion coupling dominantly to the Standard Model fermions. Treating the interactions of such a DM particle with quarks/leptons in an effective-interactions…

High Energy Physics - Phenomenology · Physics 2024-07-19 Arnab Roy , Basudeb Dasgupta , Monoranjan Guchait

An Effective Field Theory for dark matter at a TeV-scale hadron collider should include contact interactions of dark matter with the partons, the Higgs and the Z. This note estimates the impact of including dark matter-Z interactions on the…

High Energy Physics - Phenomenology · Physics 2015-06-19 Sacha Davidson

In a seminal paper now a decade old, it was shown that dark matter detectors geared at probing interactions with nucleons could also be used to probe dark matter interactions with electrons. In this work, we show that new detector concepts…

High Energy Physics - Phenomenology · Physics 2024-12-24 Sinéad M. Griffin , Guy Daniel Hadas , Yonit Hochberg , Katherine Inzani , Benjamin V. Lehmann

Results of a search for physics beyond the Standard Model in events containing an energetic photon and large missing transverse momentum with the ATLAS detector at the Large Hadron Collider are reported. As the number of events observed in…

High Energy Physics - Experiment · Physics 2017-06-23 ATLAS Collaboration

We employ data from the recently observed high-energy neutrino events at the IceCube Neutrino Observatory to constrain interactions between the dark matter (DM) in the Milky Way and the neutrino sector. We construct an extended un-binned…

High Energy Physics - Phenomenology · Physics 2016-12-28 Carlos Argüelles , Ali Kheirandish , Aaron C. Vincent

Using data from the $\nu$-cleus detector, based on the surface of the Earth, we place constraints on dark matter in the form of Strongly Interacting Massive Particles (SIMPs) which interact with nucleons via nuclear-scale cross sections.…

High Energy Physics - Phenomenology · Physics 2017-11-21 Jonathan H. Davis

Interactions between dark matter (DM) and relativistic particles at early times suppress structure formation on small scales. In particular, the scattering process transfers heat and momentum from radiation to DM, ultimately reducing the…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-14 Wendy Crumrine , Ethan O. Nadler , Rui An , Vera Gluscevic

We consider photon signals arising from the annihilation or decay of low-mass (sub-GeV) dark matter which couples dominantly to quarks. In this scenario, the branching fractions to the various kinematically accessible hadronic final states…

High Energy Physics - Phenomenology · Physics 2018-12-26 Jason Kumar

In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region of the parameter space. We operated a prototype detector…

We consider the possible existence of a SM-neutral and light dark sector coupled to the visible sector through irrelevant portal interactions. Scenarios of this kind are motivated by dark matter and arise in various extensions of the…

High Energy Physics - Phenomenology · Physics 2021-07-07 Roberto Contino , Kevin Max , Rashmish K. Mishra

Dark matter interactions with electrons or protons during the early Universe leave imprints on the cosmic microwave background and the matter power spectrum, and can be probed through cosmological and astrophysical observations. These…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-06 Manuel A. Buen-Abad , Rouven Essig , David McKeen , Yi-Ming Zhong

In this letter, we report precise and robust observational constraints on dark matter-dark energy scattering cross section, using the latest data from cosmic microwave background (CMB) Planck temperature and polarization, baryon acoustic…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-06 Suresh Kumar , Rafael C. Nunes

Baryon interactions with bosonic dark matter are constrained by the potential for dark matter-rich neutron stars to collapse into black holes. We consider the effect of dark matter self-interactions and dark matter annihilation on these…

High Energy Physics - Phenomenology · Physics 2013-03-22 Joseph Bramante , Keita Fukushima , Jason Kumar

In this study, we investigate the constraints on secret self-interactions of neutrinos by examining the impact of radiative scattering of ultrahigh-energy neutrinos. These neutrinos are produced from the decay of superheavy dark matter and…

High Energy Physics - Phenomenology · Physics 2024-12-30 Mansi Dhuria , Bishnu Gupta Teli

An effective interaction approach is used to describe the interactions between the spin 0 or spin 1/2 dark matter particle and the degrees of freedom of the standard model. This approach is applicable to those models in which the dark…

High Energy Physics - Phenomenology · Physics 2015-06-03 Kingman Cheung , Po-Yan Tseng , Yue-Lin S. Tsai , Tzu-Chiang Yuan

Dark matter pair production at high energy colliders may leave observable signatures in the energy and momentum spectra of the objects recoiling against the dark matter. We use LEP data on mono-photon events with large missing energy to…

High Energy Physics - Phenomenology · Physics 2011-08-09 Patrick J. Fox , Roni Harnik , Joachim Kopp , Yuhsin Tsai

We consider an effective field theory for a gauge singlet Dirac dark matter (DM) particle interacting with the Standard Model (SM) fields via effective operators suppressed by the scale $\Lambda \gtrsim 1$ TeV. We perform a systematic…

High Energy Physics - Phenomenology · Physics 2014-05-21 Andreas Crivellin , Francesco D'Eramo , Massimiliano Procura

Models for light dark matter particles with masses below 1 GeV/c$^2$ are a natural and well-motivated alternative to so-far unobserved weakly interacting massive particles. Gram-scale cryogenic calorimeters provide the required detector…

The recent observation of three events by the CDMS II experiment can be interpreted as a 8.6 GeV dark matter scatters elastically with the nucleons inside the silicon detectors with a spin-independent cross section of 1.9 x 10^-41 cm^2. We…

High Energy Physics - Phenomenology · Physics 2013-08-02 Kingman Cheung , Chih-Ting Lu , Po-Yan Tseng , Tzu-Chiang Yuan
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