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The dark matter interpretation for a recent observation of excessive electron recoil events at the XENON1T detector seems challenging because its velocity is not large enough to give rise to recoiling electrons of $\mathcal{O}({\rm keV})$.…

High Energy Physics - Phenomenology · Physics 2021-05-26 Haider Alhazmi , Doojin Kim , Kyoungchul Kong , Gopolang Mohlabeng , Jong-Chul Park , Seodong Shin

In a recent paper, four of the present authors proposed a class of dark matter models where generalized parity symmetry leads to equality of dark matter abundance with baryon asymmetry of the Universe and predicts dark matter mass to be…

High Energy Physics - Phenomenology · Physics 2015-03-14 Haipeng An , Shao-Long Chen , Rabindra N. Mohapatra , Shmuel Nussinov , Yue Zhang

Dark matter detectors built primarily to probe elastic scattering of WIMPs on nuclei are also precise probes of light, weakly coupled particles that may be absorbed by the detector material. In this paper, we derive constraints on the…

High Energy Physics - Phenomenology · Physics 2015-07-23 Haipeng An , Maxim Pospelov , Josef Pradler , Adam Ritz

The null signal from collider and dark matter (DM) direct detector experiments makes the interaction between DM and visible matter too small to reproduce the correct relic density for many thermal DM models. The remaining parameter space…

High Energy Physics - Phenomenology · Physics 2022-05-04 Jie-Cheng Feng , Xian-Wei Kang , Chih-Ting Lu , Yue-Lin Sming Tsai , Feng-Shou Zhang

The XENON1T dark matter experiment recently reported 0.65 ton-year exposure measurement on electron recoils , which shows an excess in $2\sim 3$ KeV recoils above the detector background. In this paper we present a Pseudo-Dirac dark matter…

High Energy Physics - Phenomenology · Physics 2020-06-30 Wei Chao , Yu Gao , Ming jie Jin

This study explores a two-component dark matter model in which one component, heavier dark matter, annihilates into a lighter dark matter. The lighter dark matter is expected to generate detectable signals in detectors due to its enhanced…

High Energy Physics - Phenomenology · Physics 2025-04-18 Keiko I. Nagao , Tatsuhiro Naka , Takaaki Nomura

Dark matter particles with masses in the sub-GeV range have escaped severe constraints from direct detection experiments such as LUX, PANDAX-II and XENON100 as the corresponding recoil energies are, largely, lower than the detector…

High Energy Physics - Phenomenology · Physics 2019-10-16 Debajyoti Choudhury , Divya Sachdeva

We develop a formalism to describe electron ejections from graphene-like targets by dark matter (DM) scattering for general forms of scalar and spin 1/2 DM-electron interactions and compare their applicability and accuracy within the…

High Energy Physics - Phenomenology · Physics 2023-03-29 Riccardo Catena , Timon Emken , Marek Matas , Nicola A. Spaldin , Einar Urdshals

Dark Matter (DM) is an elusive form of matter which has been postulated to explain astronomical observations through its gravitational effects on stars and galaxies, gravitational lensing of light around these, and through its imprint on…

High Energy Physics - Phenomenology · Physics 2016-06-07 James Bateman , Ian McHardy , Alexander Merle , Tim R. Morris , Hendrik Ulbricht

We present a self-interacting boosted dark matter (DM) scenario as a possible explanation of the recently reported excess of electron recoil events by the XENON1T experiment. The Standard Model (SM) has been extended with two vector-like…

High Energy Physics - Phenomenology · Physics 2022-05-11 Debasish Borah , Manoranjan Dutta , Satyabrata Mahapatra , Narendra Sahu

We report on a search for sub-GeV dark matter (DM) particles interacting with electrons using the DAMIC-M prototype detector at the Modane Underground Laboratory. The data feature a significantly lower detector single $e^-$ rate (factor 50)…

We demonstrate precisely what particle physics information can be extracted from a single direct detection observation of dark matter while making absolutely no assumptions about the local velocity distribution and local density of dark…

High Energy Physics - Phenomenology · Physics 2011-02-18 Patrick J. Fox , Graham D. Kribs , Tim M. P. Tait

While most scintillation-based dark matter experiments search for Weakly Interacting Massive Particles (WIMPs), a sub-GeV WIMP-like particle may also be detectable in these experiments. While dark matter of this type and scale would not…

High Energy Physics - Phenomenology · Physics 2023-10-30 A. R. Caddell , V. V. Flambaum , B. M. Roberts

MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. This Letter of Intent presents the MeV-GeV DM discovery potential for a 1 m$^3$ segmented plastic scintillator detector placed downstream of the beam-dump…

There are currently several existing and proposed experiments designed to probe sub-GeV dark matter (DM) using electron ionization in various materials. The projected signal rates for these experiments assume that this ionization yield…

High Energy Physics - Phenomenology · Physics 2020-11-24 Daniel Baxter , Yonatan Kahn , Gordan Krnjaic

We present exoplanets as new targets to discover Dark Matter (DM). Throughout the Milky Way, DM can scatter, become captured, deposit annihilation energy, and increase the heat flow within exoplanets. We estimate upcoming infrared telescope…

High Energy Physics - Phenomenology · Physics 2023-04-26 Rebecca K. Leane , Juri Smirnov

Many models have recently been proposed in which dark matter (DM) couples to Standard Model fields via a GeV-scale dark sector. We consider scenarios of this type where the DM mass, at the electroweak/TeV scale, is generated by the VEV of a…

High Energy Physics - Phenomenology · Physics 2010-06-11 David Krohn , Joshua T. Ruderman , Lian-Tao Wang

Till today, the nature of Dark Matter (DM) remains elusive despite all our efforts. This missing matter of the universe has not been observed by the already operating DM direct-detection experiments, but we can infer its gravitational…

High Energy Astrophysical Phenomena · Physics 2024-06-10 M. Vikiaris , V. Petousis , M. Veselsky , Ch. C. Moustakidis

We perform a systematic study of the fermionic DM absorption interactions on electron target in the context of effective field theory. The fermionic DM absorption is not just sensitive to sub-MeV DM with efficient energy release, but also…

High Energy Physics - Phenomenology · Physics 2022-06-15 Shao-Feng Ge , Xiao-Gang He , Xiao-Dong Ma , Jie Sheng

In the light of the recently observed XENON1T electronic recoil (ER) data, we investigate the possibility of constraining the parameter space of a generic fermionic warm dark matter (WDM), decaying into a standard model (SM) neutrino and a…

High Energy Physics - Phenomenology · Physics 2021-08-05 Koushik Dutta , Avirup Ghosh , Arpan Kar , Biswarup Mukhopadhyaya