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We show that in the scenario where dark matter (DM) particles annihilate through light mediators, the energy spectra of the final state cosmic-ray particles depend strongly on the mediator mass. For final state antiprotons, a spectrum with…

High Energy Physics - Phenomenology · Physics 2017-04-05 Xian-Jun Huang , Chun-Cheng Wei , Yue-Liang Wu , Wei-Hong Zhang , Yu-Feng Zhou

In the cosmological paradigm, cold dark matter (DM) dominates the mass content of the Universe and is present at every scale. Candidates for DM include many extensions of the standard model, such as weakly interacting massive particles…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Benjamin Zitzer

Antiprotons are regarded as a powerful probe for Dark Matter (DM) indirect detection and indeed current data from \PAMELA\ have been shown to lead to stringent constraints. However, in order to exploit their constraining/discovery power…

High Energy Astrophysical Phenomena · Physics 2015-10-28 Mathieu Boudaud

We perform a detailed quantitative analysis of the recent AMS-02 electron and positron data. We investigate the interplay between the emission from primary astrophysical sources, namely Supernova Remnants and Pulsar Wind Nebulae, and the…

High Energy Astrophysical Phenomena · Physics 2016-07-14 Mattia Di Mauro , Fiorenza Donato , Nicolao Fornengo , Andrea Vittino

In recent years, direct detection, indirect detection, and collider experiments have placed increasingly stringent constraints on particle dark matter, exploring much of the parameter space associated with the WIMP paradigm. In this paper,…

High Energy Physics - Phenomenology · Physics 2016-12-21 Miguel Escudero , Asher Berlin , Dan Hooper , Meng-Xiang Lin

An energy threshold of (220$\pm$10) eV was achieved at an efficiency of 50% with a four-channel ultra-low-energy germanium detector each with an active mass of 5 g\cite{wimppaper}. This provides a unique probe to WIMP dark matter with mass…

Astrophysics · Physics 2019-08-13 Shin-Ted Lin , H. T. Wong

In hidden sector models, dark matter does not directly couple to the particle content of the Standard Model, strongly suppressing rates at direct detection experiments, while still allowing for large signals from annihilation. In this…

High Energy Physics - Phenomenology · Physics 2020-08-25 Dan Hooper , Rebecca K. Leane , Yu-Dai Tsai , Shalma Wegsman , Samuel J. Witte

Dark matter is thought to make up most of the matter density of the Universe, yet its true nature remains uncertain. Among dark matter theories, Weakly Interacting Massive Particles (WIMPs) are a prominent candidate for dark matter because…

High Energy Astrophysical Phenomena · Physics 2023-09-20 Micael Andrade , Aion Viana

Synchrotron emission from electron cosmic ray populations can be used to study both cosmic rays physics and WIMP dark matter imprints on radio skymaps. We used available radio data - from MHz to GHz - to analyze the contribution from…

Cosmology and Nongalactic Astrophysics · Physics 2013-09-19 Roberto A. Lineros

We assess the prospects for indirect detection of Weakly Interacting Massive Particles using a large Liquid Argon TPC detector. Signal events will consist of energetic electron (anti)neutrinos coming from the decay of $\tau$ leptons and $b$…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bueno , R. Cid , S. Navas-Concha , D. Hooper , T. J. Weiler

In experiments for direct dark matter searches, neutrinos coherently scattering off nuclei can produce similar events as Weakly Interacting Massive Particles (WIMPs). To reach sensitivities better than about 10^-10 pb for the elastic WIMP…

With positive signals from multiple direct detection experiments it will, in principle, be possible to measure the mass and cross sections of weakly-interacting massive particle (WIMP) dark matter. Recent work has shown that, with a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Bradley J. Kavanagh , Mattia Fornasa , Anne M. Green

The DArk Matter Particle Explorer (DAMPE) mission revealed a break in the spectrum of cosmic-ray electons and positrons. This is associated with an excess above the expected backgrounds at energies around 1 TeV. Several authors have argued…

Cosmology and Nongalactic Astrophysics · Physics 2019-02-21 Geoff Beck , Sergio Colafrancesco

Direct searches for dark matter have prompted in recent years a great deal of excitement within the astroparticle physics community, but the compatibility between signal claims and null results of different experiments is far from being a…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-01 Miguel Pato

We study scenarios where Dark Matter is a weakly interacting particle (WIMP) embedded in an ElectroWeak multiplet. In particular, we consider real SU(2) representations with zero hypercharge, that automatically avoid direct detection…

High Energy Physics - Phenomenology · Physics 2022-01-19 Salvatore Bottaro , Dario Buttazzo , Marco Costa , Roberto Franceschini , Paolo Panci , Diego Redigolo , Ludovico Vittorio

Recent breakthroughs in cosmology reveal that a quarter of the Universe is composed of dark matter, but the microscopic identity of dark matter remains a deep mystery. I review recent progress in resolving this puzzle, focusing on two…

Astrophysics · Physics 2009-11-13 Jonathan L. Feng

The cosmic antideuteron is a promising probe for the dark matter annihilation signature. In order to determine the DM signature, the background astrophysical antideuteron flux should be carefully studied. In this work we provide a new…

High Energy Astrophysical Phenomena · Physics 2018-01-04 Su-Jie Lin , Xiao-Jun Bi , Peng-Fei Yin

The Cryogenic Dark Matter search experiment (CDMS) employs low-temperature Ge and Si detectors to detect WIMPs via their elastic scattering of target nuclei. The last analysis with an germanium exposure of 397.8 kg-days resulted in zero…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 T. Bruch

The existence of dark matter was suggested, using simple gravitational arguments, seventy years ago. Although we are now convinced that most of the mass in the Universe is indeed some non-luminous matter, we still do not know its…

High Energy Physics - Phenomenology · Physics 2009-11-10 Carlos Munoz
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