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In this work we have considered a minimal extension of Standard Model by a local $U(1)$ gauge group in order to accommodate a stable (fermionic) Dark Matter (DM) candidate. We have focussed on parameter regions where DM possesses adequate…

High Energy Physics - Phenomenology · Physics 2021-01-08 Rahool Kumar Barman , Biplob Bhattacherjee , Arindam Chatterjee , Arghya Choudhury , Aritra Gupta

We perform a generalized analysis of data from WIMP search experiments for point-like WIMPs of arbitrary spin and general Lorenz-invariant WIMP-nucleus interaction. We show that in the non-relativistic limit only spin-independent (SI) and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andriy Kurylov , Marc Kamionkowski

Radio observations of the Ursa Major II dwarf spheroidal galaxy obtained using the Green Bank Telescope are used to place bounds on WIMP dark matter properties. Dark matter annihilation releases energy in the form of charged particles which…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-13 Aravind Natarajan , Jeffrey B. Peterson , Tabitha C. Voytek , Kristine Spekkens , Brian Mason , James Aguirre , Beth Willman

The recent astronomical observation of GeV gamma-ray excess from the Galactic Center was suggested due to a $b \bar{b}$ mode in tens GeV WIMP (weakly interacting massive particle) pair annihilations, and this mode was also explored by the…

High Energy Physics - Phenomenology · Physics 2015-10-14 Lian-Bao Jia

In the standard thermal relic scenario, dark matter remains in chemical equilibrium with the Standard Model radiation bath until freeze-out occurs at $T \sim m_X/20$, where $m_X$ is the dark matter mass. In this familiar class of models,…

High Energy Physics - Phenomenology · Physics 2026-05-20 Dan Hooper , Gordan Krnjaic , Gabriele Montefalcone

The Higgs doublet can mediate a long-range interaction between multi-TeV particles coupled to the Weak interactions of the Standard Model, while its emission can lead to very rapid bound-state formation processes and bound-to-bound…

High Energy Physics - Phenomenology · Physics 2021-09-03 Ruben Oncala , Kalliopi Petraki

Dark matter pair production at high energy colliders may leave observable signatures in the energy and momentum spectra of the objects recoiling against the dark matter. We discuss signatures of Dark Matter in the jets + missing energy and…

High Energy Physics - Phenomenology · Physics 2015-03-19 Joachim Kopp

If the dark matter of the Universe is constituted by weakly interacting massive particles (WIMP), they would accumulate in the core of astrophysical objects as the Sun and annihilate into particles of the Standard Model. High-energy…

High Energy Physics - Phenomenology · Physics 2008-11-26 Olga Mena , Sergio Palomares-Ruiz , Silvia Pascoli

As experimental null results increase the pressure on heavy weakly interacting massive particles (WIMPs) as an explanation of thermal dark matter (DM), it seems timely to explore previously overlooked regions of the WIMP parameter space. In…

High Energy Physics - Phenomenology · Physics 2019-02-13 Patrick Foldenauer

The BESS-Polar collaboration has recently performed a precise measurement of the local antiproton flux which is consistent with a pure secondary production of antiprotons. We constrain a possible primary component originating from dark…

High Energy Physics - Phenomenology · Physics 2013-05-30 Rolf Kappl , Martin Wolfgang Winkler

In a previous publication, we showed that a high energy muon collider can make decisive statements about the electroweak (WIMP) Dark Matter (DM), reaching a DM mass which could give the observed thermal relic abundance. In this document, we…

High Energy Physics - Phenomenology · Physics 2022-03-15 Tao Han , Zhen Liu , Lian-Tao Wang , Xing Wang

The spectrum of an isotropic extragalactic {\gamma}-ray background (EGB) has been measured by the Fermi-LAT telescope at high latitudes. Two new models for the EGB are derived from the subraction of unresolved point sources and…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-15 Francesca Calore , Valentina De Romeri , Fiorenza Donato

An energy threshold of (220+-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. This provides a unique probe to WIMP dark matter with mass below 10 GeV. With…

High Energy Physics - Experiment · Physics 2009-03-24 TEXONO Collaboration , S. T. Lin

The Weakly Interacting Massive Particles (WIMPs) are among the main candidates for the relic dark matter (DM). The idea of the direct DM detection relies on elastic in-dependent (SD) and spin-independent (SI) interaction of WIMPs with…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. A. Bednyakov , F. Simkovic , I. V. Titkova

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We develop a model-independent method for determining the mass $m_\chi$ of the WIMP by using data (i.e., measured recoil energies) of direct…

High Energy Physics - Phenomenology · Physics 2009-01-06 Manuel Drees , Chung-Lin Shan

We propose and study a scalar extension of the Standard Model which respects a $\mathbb{Z}_3$ symmetry remnant of the spontaneous breaking of a global $U(1)_\text{DM}$ symmetry. Consequently, this model has a natural dark matter candidate…

High Energy Physics - Phenomenology · Physics 2015-06-23 Nicolas Bernal , Camilo Garcia-Cely , Rogerio Rosenfeld

Weakly Interacting Massive Particles (WIMPs) are considered to be one of the favoured dark matter candidates. Searching for any detectable signal due to the annihilation and decay of WIMPs over the entire electromagnetic spectrum has become…

High Energy Astrophysical Phenomena · Physics 2021-01-27 Arghyadeep Basu , Nirupam Roy , Samir Choudhuri , Kanan K. Datta , Debajyoti Sarkar

The potential for detecting DM at the Compact Linear Collider (CLIC) is investigated at \mbox{$\sqrt{s}=$ 3 TeV}. The sensitivity of the search is estimated by computing the 95\% confidence level upper limit cross section as a function of…

High Energy Physics - Experiment · Physics 2021-03-16 J-J. Blaising , P. Roloff , A. Sailer , U. Schnoor

New limits are presented on the cross section for Weakly Interacting Massive Particle (WIMP) nucleon scattering in the KIMS CsI(T) detector array at the Yangyang Underground Laboratory. The exposure used for these results is 24524.3…

The nature of Dark Matter (DM) remains one of the most important unresolved questions of fundamental physics. Many models, including Weakly Interacting Massive Particles (WIMPs), assume DM to be a particle and predict a weak coupling with…

High Energy Astrophysical Phenomena · Physics 2021-07-26 Giovanni Renzi