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Traditional direct searches for dark matter, looking for nuclear recoils in deep underground detectors, are challenged by an almost complete loss of sensitivity for light dark matter particles. Consequently, there is a significant effort in…

High Energy Physics - Phenomenology · Physics 2020-04-22 Kyrylo Bondarenko , Alexey Boyarsky , Torsten Bringmann , Marco Hufnagel , Kai Schmidt-Hoberg , Anastasia Sokolenko

The non-detection of GeV-scale WIMPs has led to increased interest in more general candidates, including sub-GeV dark matter. Direct detection experiments, despite their high sensitivity to WIMPs, are largely blind to sub-GeV dark matter.…

High Energy Physics - Phenomenology · Physics 2021-08-12 Christopher V. Cappiello , John F. Beacom

We describe an approach to detect dark matter and other invisible particles with mass below a GeV, exploiting missing energy-momentum measurements and other kinematic features of fixed-target production. In the case of an invisibly decaying…

High Energy Physics - Phenomenology · Physics 2015-05-27 Eder Izaguirre , Gordan Krnjaic , Philip Schuster , Natalia Toro

Light dark matter is a compelling experimental target in light of stringent constraints on heavier WIMPs. However, for a sub-MeV WIMP, the universe is sufficiently well understood at temperatures below 10 MeV that there is no room for it to…

High Energy Physics - Phenomenology · Physics 2018-03-02 Daniel Green , Surjeet Rajendran

Hidden sectors are ubiquitous in supergravity theories, in strings and in branes. Well motivated models such as the Stueckelberg hidden sector model could provide a candidate for dark matter. In such models, the hidden sector communicates…

High Energy Physics - Phenomenology · Physics 2023-04-12 Amin Aboubrahim , Mohammad Mahdi Altakach , Michael Klasen , Pran Nath , Zhu-Yao Wang

For the experimental search of neutralino dark matter, it is important to know its allowed mass and scattering cross section with the nucleon. In order to figure out how light a neutralino dark matter can be predicted in low energy…

High Energy Physics - Phenomenology · Physics 2011-09-12 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang

In order to accommodate increasingly tighter observational constraints on dark matter, several models have been proposed recently in which dark matter particles are charged under some hidden gauge group. Hidden gauge charges are invisible…

High Energy Physics - Phenomenology · Physics 2009-12-04 De-Chang Dai , Katherine Freese , Dejan Stojkovic

We revisit the possibility of light scalar dark matter, in the MeV to GeV mass bracket and coupled to electrons through fermion or vector mediators, in light of significant experimental and observational advances that probe new physics…

High Energy Physics - Phenomenology · Physics 2021-04-14 Céline Bœhm , Xiaoyong Chu , Jui-Lin Kuo , Josef Pradler

We show that hidden hot dark matter, hidden-sector dark matter with interactions that decouple when it is relativistic, is a viable dark matter candidate provided it has never been in thermal equilibrium with the particles of the standard…

Cosmology and Nongalactic Astrophysics · Physics 2009-12-15 Kris Sigurdson

Cosmologically stable, light particles that came into thermal contact with the Standard Model in the early universe may persist today as a form of hot dark matter. For relics with masses in the eV range, their role in structure formation…

High Energy Physics - Phenomenology · Physics 2024-12-20 Jeff A. Dror , Pearl Sandick , Barmak Shams Es Haghi , Fengwei Yang

Dark matter particles with Planck-scale mass ($\simeq10^{19}\text{GeV}/c^2$) arise in well-motivated theories and could be produced by several cosmological mechanisms. Using a blind analysis of data collected over a 813 d live time with…

The presence of dark matter in the Universe is nowadays widely supported by a large body of astronomical and cosmological observations. The central region of the Milky Way is expected to harbor a large amount of dark matter.…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Lucia Rinchiuso , Emmanuel Moulin

We study the direct-detection rate for axial-vectorial dark matter scattering off nuclei in an $\mathrm{SU}(2)\times \mathrm{U}(1)$ invariant effective theory and compare it against the LHC reach. Current constraints from direct detection…

High Energy Physics - Phenomenology · Physics 2022-08-09 T. Alanne , F. Bishara , J. Fiaschi , O. Fischer , M. Gorbahn , U. Moldanazarova

Many models containing particles which are candidates for dark matter, assume the standard model particles and the dark matter candidates are mediated by a spin-0 particle. At the LHC, one can use these models for dark matter searches. One…

High Energy Physics - Experiment · Physics 2019-03-20 Yoav Afik , Eitan Gozani , Yoram Rozen

Given recent advancements in dark matter (DM) search experiments, particularly the latest LUX-ZEPLIN (LZ) direct detection (DD) results, we systematically investigate the light bino-higgsino DM scenario within the natural supersymmetric…

High Energy Physics - Phenomenology · Physics 2026-02-17 XinTian Wang , Murat Abdughani

Dark matter in the sub-GeV mass range is a theoretically motivated but largely unexplored paradigm. Such light masses are out of reach for conventional nuclear recoil direct detection experiments, but may be detected through the small…

High Energy Physics - Phenomenology · Physics 2016-04-26 Rouven Essig , Marivi Fernandez-Serra , Jeremy Mardon , Adrian Soto , Tomer Volansky , Tien-Tien Yu

We attempt to identify the minimal composite scalar dark matter from strong dynamics with the characteristic mass of order TeV scale. We provide both direct and indirect limits from dark matter direct detections and collider facilities.…

High Energy Physics - Phenomenology · Physics 2023-05-16 Shuai Xu , Sibo Zheng

We investigate the direct detection phenomenology of a class of dark matter (DM) models in which DM does not directly interact with nuclei, {but rather} the products of its annihilation do. When these annihilation products are very light…

High Energy Physics - Phenomenology · Physics 2015-06-17 John F. Cherry , Mads T. Frandsen , Ian M. Shoemaker

Under the assumption that dark matter is made of new particles, annihilations of those are required to reproduce the correct dark matter abundance in the Universe. This process can occur in dense regions of our Galaxy such as the Galactic…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Pierre Brun

We construct models of dark matter with suppressed spin-independent scattering cross section utilizing the existing simplified model framework. Even simple combinations of simplified models can exhibit interference effects that cause the…

High Energy Physics - Phenomenology · Physics 2016-05-30 Arghya Choudhury , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Andrew J. Williams