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Recent COMPTEL data analysis reveals a $\sim$ 2 MeV continuum excess whose spatial distribution closely matches the long-standing 511 keV line observed by INTEGRAL/SPI, indicating a common population of low-energy positrons that is…

High Energy Physics - Phenomenology · Physics 2026-01-16 Shyam Balaji , Damon Cleaver , Pedro De la Torre Luque

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

The LHC may produce light, weakly-interacting particles that decay to dark matter, creating an intense and highly collimated beam of dark matter particles in the far-forward direction. We investigate the prospects for detecting this dark…

High Energy Physics - Phenomenology · Physics 2021-09-01 Brian Batell , Jonathan L. Feng , Ahmed Ismail , Felix Kling , Roshan Mammen Abraham , Sebastian Trojanowski

If dark matter decays or annihilates into electrons and positrons, it can affect radiation and cosmic-ray backgrounds. We review a novel, more general analysis of constraints on decaying dark matter models, by introducing the response…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-13 Le Zhang

Dark Matter (DM) comprising particles in the mass range of a few MeV to GeV is waiting to be explored, given the many theoretical models accommodating cosmological abundance. We hereby propose an experiment with the LHC proton beam of 7 TeV…

High Energy Physics - Experiment · Physics 2016-09-04 Ashok Kumar , Archana Sharma

The data on cosmic antiprotons have reached an outstanding precision on energies spanning from GeV to hundreds of TeV, thanks to the space-based AMS-02 experiment. The balloon-borne GAPS experiment, which just completed its first Antarctic…

High Energy Physics - Phenomenology · Physics 2026-05-12 Lorenzo Stefanuto , Mattia Di Mauro , Fiorenza Donato , Nicolao Fornengo , Jordan Koechler , David Maurin

The indirect detection of dark matter annihilation and decay using observations of photons, charged cosmic rays, and neutrinos offers a promising means of identifying the particle nature of this elusive component of the universe. The last…

High Energy Astrophysical Phenomena · Physics 2016-11-23 Jennifer M. Gaskins

The ISS-based CALET (CALorimetric Electron Telescope) detector can play an important role in indirect search for Dark Matter (DM), measuring the electron+positron flux in the TeV region for the first time directly. With its fine energy…

High Energy Astrophysical Phenomena · Physics 2017-08-11 S. Bhattacharyya , H. Motz , S. Torii , Y. Asaoka

Indirect detection of dark matter particles, i.e. the detection of annihilation or decay products of Weakly Interacting Massive Particles, has entered a pivotal phase as experiments reach sensitivities that probe the most interesting…

High Energy Physics - Phenomenology · Physics 2014-11-10 Jan Conrad

One of the predictions of the $\Lambda$CDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos. When the latter are massive enough they retain gas (i.e., baryons) and become…

In this review article the current status of particle dark matter is addressed. We discuss the main theoretical extensions of the standard model which allow to explain dark matter in terms of a (yet undiscovered) elementary particle. We…

Astrophysics · Physics 2008-11-26 Nicolao Fornengo

The search for an excess of antideuterons in the cosmic rays flux has been proposed as a very promising channel for dark matter indirect detection, especially for WIMPs with a low or intermediate mass. With the development of the AMS…

High Energy Physics - Phenomenology · Physics 2015-06-17 A. Vittino , N. Fornengo , L. Maccione

Electrons and positrons produced in dark matter annihilation can generate secondary emission through synchrotron and IC processes, and such secondary emission provides a possible means to detect DM particles with masses beyond the…

High Energy Astrophysical Phenomena · Physics 2024-02-02 Xiao-Song Hu , Ben-Yang Zhu , Tian-Ci Liu , Yun-Feng Liang

Low energy antideuteron detection presents a unique channel for indirect detection, targeting dark matter that annihilates into hadrons in a relatively background-free way. Since the idea was first proposed, many WIMP-type models have…

High Energy Physics - Phenomenology · Physics 2020-05-26 Lisa Randall , Weishuang Linda Xu

We perform a multichannel analysis of the indirect signals for the Wino Dark Matter, including one-loop electroweak and Sommerfeld enhancement corrections. We derive limits from cosmic ray antiprotons and positrons, from continuum galactic…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Andrzej Hryczuk , Ilias Cholis , Roberto Iengo , Maryam Tavakoli , Piero Ullio

For the interpretation of past and future direct searches for dark matter (DM) particles, it is important to be able to provide accurate predictions for event rates and spectra under a variety of possible and viable assumptions in a…

High Energy Physics - Phenomenology · Physics 2021-12-03 Timon Emken

High-energetic gamma rays from astrophysical targets constitute a unique probe for annihilation or decay of heavy particle dark matter (DM). After several decades, diverse null detections have resulted in strong constraints for DM particle…

High Energy Astrophysical Phenomena · Physics 2022-09-14 Moritz Hütten , Daniel Kerszberg

The velocity distribution function of dark matter particles is expected to show significant departures from a Maxwell-Boltzmann distribution. This can have profound effects on the predicted dark matter - nucleon scattering rates in direct…

Astrophysics of Galaxies · Physics 2014-11-20 M. Kuhlen , N. Weiner , J. Diemand , P. Madau , B. Moore , D. Potter , J. Stadel , M. Zemp

We investigate dark matter (DM) interactions via spectroscopic signatures of energy injection in planetary environments. We develop a general framework to account for how DM energy injection signals depend on the DM spatial distribution,…

High Energy Physics - Phenomenology · Physics 2025-08-05 Carlos Blanco , Rebecca K. Leane , Marianne Moore , Joshua Tong

Radiative emissions from electrons and positrons generated by dark matter (DM) annihilation or decay are one of the most investigated signals in indirect searches of WIMPs. Ideal targets must have large ratio of DM to baryonic matter.…

High Energy Astrophysical Phenomena · Physics 2023-08-15 Marco Regis , Michael Korsmeier , Gianni Bernardi , Giada Pignataro , Javier Reynoso-Cordova , Piero Ullio