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We present new observational constraints on the elastic scattering of dark matter with electrons for dark matter masses between 10 keV and 1 TeV. We consider scenarios in which the momentum-transfer cross section has a power-law dependence…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-01 David Nguyen , Dimple Sarnaaik , Kimberly K. Boddy , Ethan O. Nadler , Vera Gluscevic

Dark matter is poorly constrained by direct detection experiments at masses below 1 MeV. This is an important target for the next generation of experiments, and several methods have been proposed to probe this mass range. One class of such…

High Energy Physics - Phenomenology · Physics 2020-07-31 Benjamin V. Lehmann , Stefano Profumo

The XENON collaboration recently reported an excess of electron recoil events in the low energy region with a significance of around $3.3\sigma$. An explanation of this excess in terms of thermal dark matter seems challenging. We propose a…

High Energy Physics - Phenomenology · Physics 2022-03-07 Anirban Das , Manibrata Sen

Limits on dark matter spin dependent elastic scattering cross section on protons derived from IceCube data are obtained for different dark matter annihilation channels using micrOMEGAs. The uncertainty on the derived limits, estimated by…

High Energy Physics - Phenomenology · Physics 2015-12-18 G. Belanger , J. Da Silva , T. Perrillat-Bottonet , A. Pukhov

Dark matter experiments primarily search for the scattering of WIMPs on target nuclei of well shielded underground detectors. The results from liquid scintillator experiments furthermore provide precise probes of very light and very weakly…

High Energy Physics - Phenomenology · Physics 2015-10-19 Haipeng An , Kaixuan Ni , Maxim Pospelov , Josef Pradler , Adam Ritz

IceCube discovered a flux of cosmic neutrinos originating in extragalactic sources with an energy density close to that in gamma rays and cosmic rays. A multimessenger campaign triggered by the coincident observation of a gamma-ray flare…

High Energy Astrophysical Phenomena · Physics 2019-09-23 Francis Halzen

Most of the light from blazars, active galactic nuclei with jets of magnetized plasma that point nearly along the line of sight, is produced by high-energy particles, up to $\sim 1$ TeV. Although the jets are known to be ultimately powered…

High Energy Astrophysical Phenomena · Physics 2023-09-06 Ioannis Liodakis , Alan P. Marscher , Iván Agudo , Andrei V. Berdyugin , Maria I. Bernardos , Giacomo Bonnoli , George A. Borman , Carolina Casadio , Víctor Casanova , Elisabetta Cavazzuti , Nicole Rodriguez Cavero , Laura Di Gesu , Niccoló Di Lalla , Immacolata Donnarumma , Steven R. Ehlert , Manel Errando , Juan Escudero , Maya García-Comas , Beatriz Agís-González , César Husillos , Jenni Jormanainen , Svetlana G. Jorstad , Masato Kagitani , Evgenia N. Kopatskaya , Vadim Kravtsov , Henric Krawczynski , Elina Lindfors , Elena G. Larionova , Grzegorz M. Madejski , Frédéric Marin , Alessandro Marchini , Herman L. Marshall , Daria A. Morozova , Francesco Massaro , Joseph R. Masiero , Dimitri Mawet , Riccardo Middei , Maxwell A. Millar-Blanchaer , Ioannis Myserlis , Michela Negro , Kari Nilsson , Stephen L. O'Dell , Nicola Omodei , Luigi Pacciani , Alessandro Paggi , Georgia V. Panopoulou , Abel L. Peirson , Matteo Perri , Pierre-Olivier Petrucci , Juri Poutanen , Simonetta Puccetti , Roger W. Romani , Takeshi Sakanoi , Sergey S. Savchenko , Alfredo Sota , Fabrizio Tavecchio , Samaporn Tinyanont , Andrey A. Vasilyev , Zachary R. Weaver , Alexey V. Zhovtan , Lucio A. Antonelli , Matteo Bachetti , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccoló Bucciantini , Fiamma Capitanio , Simone Castellano , Stefano Ciprini , Enrico Costa , Alessandra De Rosa , Ettore Del Monte , Alessandro Di Marco , Victor Doroshenko , Michal Dovčiak , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Jeremy Heyl , Wataru Iwakiri , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Fabio La Monaca , Luca Latronico , Simone Maldera , Alberto Manfreda , Andrea Marinucci , Giorgio Matt , Ikuyuki Mitsuishi , Tsunefumi Mizuno , Fabio Muleri , Stephen C. -Y. Ng , Chiara Oppedisano , Alessandro Papitto , George G. Pavlov , Melissa Pesce-Rollins , Maura Pilia , Andrea Possenti , Brian D. Ramsey , John Rankin , Ajay Ratheesh , Carmelo Sgró , Patrick Slane , Paolo Soffitta , Gloria Spandre , Toru Tamagawa , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicolas E. Thomas , Francesco Tombesi , Alessio Trois , Sergey Tsygankov , Roberto Turolla , Jacco Vink , Martin C. Weisskopf , Kinwah Wu , Fei Xie , Silvia Zane

Exotic dark matter together with dark energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in our Galaxy. The nature of dark matter can be unveiled only,…

Nuclear Theory · Physics 2009-09-29 J. D. Vergados

The most powerful persistent accelerators in the Universe are jetted active galaxies. Blazars, galaxies whose jets are directed towards Earth, dominate the extragalactic gamma-ray sky. Still, most of the highest-energy particle accelerators…

There exist well motivated models of particle dark matter which predominantly scatter inelastically off nuclei in direct detection experiments. This inelastic transition causes the DM to up-scatter in terrestrial experiments into an excited…

High Energy Physics - Phenomenology · Physics 2017-01-24 Joseph Bramante , Patrick J. Fox , Graham D. Kribs , Adam Martin

Beginning with a set of simplified models for spin-0, spin-$\half$, and spin-1 dark matter candidates using completely general Lorentz invariant and renormalizable Lagrangians, we derive the full set of non-relativistic operators and…

High Energy Physics - Phenomenology · Physics 2015-09-23 James B. Dent , Lawrence M. Krauss , Jayden L. Newstead , Subir Sabharwal

Neutrino-induced recoil events may constitute a background to direct dark matter searches, particularly for those detectors that strive to reach the ton-scale and beyond. This paper discusses the expected neutrino-induced background…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-18 Louis E. Strigari

A search is presented for an excess of events with large missing transverse momentum in association with at least one highly energetic jet, in a data sample of proton-proton collisions at a centre-of-mass energy of 8 TeV. The data…

High Energy Physics - Experiment · Physics 2017-08-16 CMS Collaboration

Direct dark matter detection experiments will soon be sensitive to neutrinos from astrophysical sources, including the Sun, the atmosphere, and supernova. This sets an important benchmark for these experiments, and opens up a new window in…

High Energy Physics - Phenomenology · Physics 2020-01-08 Bhaskar Dutta , Louis E. Strigari

IceCube has reported a very-high-energy neutrino (IceCube-170922A) in a region containing the blazar TXS 0506+056. Correlated {\gamma}-ray activity has led to the first high-probability association of a high-energy neutrino with an…

Astrophysics of Galaxies · Physics 2019-12-25 E. Ros , M. Kadler , M. Perucho , B. Boccardi , H. -M. Cao , M. Giroletti , F. Krauß , R. Ojha

In direct dark matter (DM) detection via scattering off the electrons, the momentum transfer plays a crucial role. Previous work showed that for self-interacting DM, if the DM particle has a size (the so-called puffy DM), the radius effect…

High Energy Physics - Phenomenology · Physics 2023-09-14 Wenyu Wang , Wu-Long Xu , Jin Min Yang

We examine the prospects for supersymmetry discovery in the minimal supergravity (mSUGRA) model via indirect detection of neutralino dark matter. We investigate rates for muon detection in neutrino telescopes, and detection of photons,…

High Energy Physics - Phenomenology · Physics 2011-07-19 Howard Baer , Alexander Belyaev , Tadas Krupovnickas , Jorge O'Farrill

Dark photon is a new gauge boson beyond the Standard Model as a kind of dark matter (DM) candidate. Dark photon dark matter (DPDM) interacts with electromagnetic fields via kinetic mixing, implicating an approach to give a constraint with…

High Energy Astrophysical Phenomena · Physics 2024-07-24 Tian-Ci Liu , Ming-Xuan Lu , Xiao-Song Hu

High-intensity neutrino beam facilities may produce a beam of light dark matter when protons strike the target. Searches for such a dark matter beam using its scattering in a nearby detector must overcome the large neutrino background. We…

High Energy Physics - Phenomenology · Physics 2016-05-04 Pilar Coloma , Bogdan A. Dobrescu , Claudia Frugiuele , Roni Harnik

We consider current observational constraints on the electromagnetic charge of dark matter. The velocity dependence of the scattering cross-section through the photon gives rise to qualitatively different constraints than standard dark…

High Energy Physics - Phenomenology · Physics 2011-03-22 Samuel D. McDermott , Hai-Bo Yu , Kathryn M. Zurek