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We suggest that an interplay between microscopic and macroscopic physics can give rise to dark matter (DM) whose interactions with the visible sector fundamentally undulate in time, independent of celestial dynamics. A concrete example is…

High Energy Physics - Phenomenology · Physics 2020-12-30 Joe Davighi , Matthew McCullough , Joseph Tooby-Smith

The evidence for dark matter signals a new class of particles at the TeV scale, which may manifest themselves indirectly through loop effects. In a simple model we show that these loop effects may be responsible for the enhanced muon…

High Energy Physics - Phenomenology · Physics 2008-11-26 Thomas Hambye , Kristjan Kannike , Ernest Ma , Martti Raidal

We study a simple extension of the standard model to simultaneously explain neutrino masses, dark matter and the matter-antimatter asymmetry of the Universe. In our model, the baryon asymmetry is achieved by the leptogenesis mechanism,…

High Energy Physics - Phenomenology · Physics 2010-03-26 Chuan-Hung Chen , Chao-Qiang Geng , Dmitry V. Zhuridov

The anomaly in the low energy distribution of quasi-elastic neutrino events reported by the MiniBooNE collaboration is discussed. We show that the observed excess of electron-like events could originate from the production and decay of a…

High Energy Physics - Phenomenology · Physics 2010-01-11 S. N. Gninenko

Numerous experimental anomalies hint at the existence of a dark matter (DM) multiplet chi_i with small mass splittings. We survey the simplest such models which arise from DM in the low representations of a new SU(2) gauge symmetry, whose…

High Energy Physics - Phenomenology · Physics 2009-10-29 Fang Chen , James M. Cline , Andrew R. Frey

The inert doublet model is a two-Higgs-doublet extension of the standard model that provides a minimal and versatile framework for frozen-out dark matter. Assuming standard cosmology, if the dark matter mass ranges between approximately 120…

High Energy Physics - Phenomenology · Physics 2025-12-19 Geneviève Bélanger , Nicolás Bernal , Andreas Goudelis , Alexander Pukhov

A theory explaining the non-observation of the dark matter and the source of the dark energy is presented in this letter. By integrating the asymmetrical potential and the Higgs potential, we provide a model with instantaneous symmetrical…

High Energy Physics - Phenomenology · Physics 2023-11-14 Yaquan Fang

Light dark sectors in thermal contact with the Standard Model naturally produce the observed relic dark matter abundance and are the targets of a broad experimental search program. A key light dark sector model is the pseudo-Dirac fermion…

High Energy Physics - Phenomenology · Physics 2021-09-03 Masha Baryakhtar , Asher Berlin , Hongwan Liu , Neal Weiner

We propose a novel mechanism to explain the positron excesses, which are observed by satellite-based telescopes including PAMELA and AMS-02, in dark matter (DM) scenarios. The novelty behind the proposal is that it makes direct use of DM…

High Energy Physics - Phenomenology · Physics 2018-05-09 Doojin Kim , Jong-Chul Park , Seodong Shin

Dark Matter-neutrino interactions affect the propagation of astrophysical neutrinos, attenuating the flux of neutrinos arriving at Earth. Using the highest-energy neutrino event detected to date by the KM3NeT collaboration as an example,…

High Energy Physics - Phenomenology · Physics 2026-04-02 Toni Bertólez-Martínez , Gonzalo Herrera , Pablo Martínez-Miravé , Jorge Terol Calvo

In this paper, we propose a new framework for dark-matter physics. Rather than focus on one or more stable dark-matter particles, we instead consider a multi-component framework in which the dark matter of the universe comprises a vast…

High Energy Physics - Phenomenology · Physics 2013-05-30 Keith R. Dienes , Brooks Thomas

In this work we continue our investigations of the possibility of explanation of the positron anomaly (PA) in cosmic rays with the help of annihilating or decaying dark matter (DM) component by varying its space distribution. In the…

High Energy Astrophysical Phenomena · Physics 2025-12-19 K. M. Belotsky , F. V. Kostromin , M. L. Solovyov

We investigate the production of dark matter with non-standard momentum distributions arising from the decay of a relativistic massive neutrino into a lighter fermion and boson H$\rightarrow$F$+$B. We develop the Boltzmann equations for…

Astrophysics · Physics 2009-10-22 G. D. Starkman , N. Kaiser , R. A. Malaney

Beside the rise of total cross sections or interaction radii of colliding high energetic particles and the shrinkage of mean-free-paths of ultra relativistic particles (nucleii) in material media (anomalons), which have been shown to be of…

General Physics · Physics 2007-05-23 Ernst Karl Kunst

This research studies the intricate interplay between dark and baryonic matter within hybrid neutron stars enriched by anisotropic bosonic dark matter halos. Our modelling, guided by the equation of state with a free parameter, reveals…

High Energy Astrophysical Phenomena · Physics 2024-03-01 Zakary Buras-Stubbs , Ilídio Lopes

So far, the observed effects of dark matter are compatible with it having purely gravitational interactions. However, in many models, dark matter has additional interactions with itself, with the Standard Model, and/or with additional…

High Energy Physics - Phenomenology · Physics 2021-01-21 Robert Lasenby

We present a scenario where dark matter is in the form of dark atoms that can accomodate the experimentally observed excess of positrons in PAMELA and AMS-02 while being compatible with the constraints imposed on the gamma-ray flux from…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Konstantin Belotsky , Maxim Khlopov , Chris Kouvaris , Maxim Laletin

Significant nonradial, nongravitational accelerations with magnitudes incompatible with radiation-driven effects have been reported in seven small, photometrically inactive near-Earth objects. Two of these objects exhibit large transverse…

Earth and Planetary Astrophysics · Physics 2023-10-05 Aster G. Taylor , Davide Farnocchia , David Vokrouhlicky , Darryl Z. Seligman , Jordan K. Steckloff , Marco Micheli

We propose the first experimental test of the inelastic boosted dark matter hypothesis, capitalizing on the new physics potential with the imminent data taking of the ProtoDUNE detectors. More specifically, we explore various experimental…

High Energy Physics - Phenomenology · Physics 2019-02-15 Animesh Chatterjee , Albert De Roeck , Doojin Kim , Zahra Gh. Moghaddam , Jong-Chul Park , Seodong Shin , Leigh H. Whitehead , Jaehoon Yu

We propose a model where a long-lived pseudoscalar EeV particle can be produced with sufficient abundance so as to account for the cold dark matter density, despite having a Planck mass suppressed coupling to the thermal bath. Connecting…

High Energy Physics - Phenomenology · Physics 2020-07-01 Emilian Dudas , Lucien Heurtier , Yann Mambrini , Keith A. Olive , Mathias Pierre