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An ever-increasing body of evidence suggests that weakly interacting massive particles (WIMPs) constitute the bulk of the matter in the Universe. Experimental data, dimensional analysis and Standard Model particle physics are sufficient to…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Halzen

We investigate self-conjugate Dark Matter (DM) particles that primarily interact with standard model electroweak gauge bosons within an effective field theoretical framework. Our analysis focuses on effective contact interactions, invariant…

High Energy Physics - Phenomenology · Physics 2024-06-21 Ekata Singh , Hrishabh Bharadwaj , Devisharan

It is usually assumed that WIMPs interact through spin-independent and spin-dependent interactions. Interactions which carry additional powers of the momentum transfer, q^2, are assumed to be too small to be relevant. In theories with new…

High Energy Physics - Phenomenology · Physics 2010-08-18 Spencer Chang , Aaron Pierce , Neal Weiner

Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. For understanding the nature of WIMPs and identifying them among new particles produced at colliders (hopefully in the near future),…

High Energy Physics - Phenomenology · Physics 2011-08-17 Chung-Lin Shan

The common analysis of direct searches for spin-independent Weakly Interacting Massive Particles (WIMPs) assumes that a spin-independent WIMP couples with the same strength with both nucleons, \textit{i.e.} that the spin-independent…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Giuliani

Dark matter candidates comprising several sub-states separated by a small mass gap, and coupled to the Standard Model by (sub-)GeV force carriers, can exhibit non-trivial scattering interactions in direct detection experiments. We analyze…

High Energy Physics - Phenomenology · Physics 2009-07-09 Brian Batell , Maxim Pospelov , Adam Ritz

An effective interaction approach is used to describe the interactions between the spin 0 or spin 1/2 dark matter particle and the degrees of freedom of the standard model. This approach is applicable to those models in which the dark…

High Energy Physics - Phenomenology · Physics 2015-06-03 Kingman Cheung , Po-Yan Tseng , Yue-Lin S. Tsai , Tzu-Chiang Yuan

Direct searches for WIMPs are sensitive to physics well below the weak scale. In the absence of light mediators, it is fruitful to apply an Effective Field Theory (EFT) approach accounting only for dark matter (DM) interactions with…

High Energy Physics - Phenomenology · Physics 2015-04-21 Francesco D'Eramo , Massimiliano Procura

We propose a novel probe of weakly interacting massive particle (WIMP) dark matter (DM) candidates of a wide mass range which fall short of the required annihilation rates to satisfy correct thermal relic abundance, dubbed as…

High Energy Physics - Phenomenology · Physics 2022-07-29 Debasish Borah , Suruj Jyoti Das , Abhijit Kumar Saha , Rome Samanta

The search for weakly-interacting massive particle (WIMP) dark matter is multi-pronged. Ultimately, the WIMP-dark-matter picture will only be confirmed if different classes of experiments see consistent signals and infer the same WIMP…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-29 Annika H. G. Peter , Vera Gluscevic , Anne M. Green , Bradley J. Kavanagh , Samuel K. Lee

We present the first end-to-end nonperturbative analysis of the gravitational wave power spectrum from a thermal first-order electroweak phase transition (EWPT), using the framework of dimensionally reduced effective field theory and…

High Energy Physics - Phenomenology · Physics 2019-12-18 Oliver Gould , Jonathan Kozaczuk , Lauri Niemi , Michael J. Ramsey-Musolf , Tuomas V. I. Tenkanen , David J. Weir

We consider higher-dimensional effective (EFT) operators consisting of fermion dark matter (DM) connecting to Standard Model (SM) leptons upto dimension six. Considering all operators together and assuming the DM to undergo thermal…

High Energy Physics - Phenomenology · Physics 2022-05-11 Basabendu Barman , Subhaditya Bhattacharya , Sudhakantha Girmohanta , Sahabub Jahedi

WIMP-nucleon scattering is analyzed at order $1/M$ in Heavy WIMP Effective Theory. The $1/M$ power corrections, where $M\gg m_W$ is the WIMP mass, distinguish between different underlying UV models with the same universal limit and their…

High Energy Physics - Phenomenology · Physics 2018-04-25 Chien-Yi Chen , Richard J. Hill , Mikhail P. Solon , Alexander M. Wijangco

We perform a detailed study of an effective field theory which includes the Standard Model particle content extended by a pair of Weyl fermionic SU(2)-doublets with opposite hypercharges. A discrete symmetry guarantees that a linear…

High Energy Physics - Phenomenology · Physics 2016-11-29 Athanasios Dedes , Dimitrios Karamitros , Vassilis C. Spanos

We present constraints on the existence of weakly interacting massive particles (WIMPs) from an 11 kg-day target exposure of the DAMIC experiment at the SNOLAB underground laboratory. The observed energy spectrum and spatial distribution of…

Assuming for Weakly Interacting Massive Particles (WIMPs) a Maxwellian velocity distribution in the Galaxy we provide an assessment of the sensitivity of existing Dark Matter (DM) direct detection (DD) experiments to operators up to…

High Energy Physics - Phenomenology · Physics 2019-08-07 Sunghyun Kang , Stefano Scopel , Gaurav Tomar , Jong-Hyun Yoon

Electromagnetic (EM) probes such as photons and dileptons provide direct insight into the space-time evolution of the hot and dense matter formed in heavy-ion collisions. Being unaffected by strong interactions, they serve as penetrating…

Nuclear Experiment · Physics 2025-10-01 Sebastian Scheid

We continue the study of weakly interacting massive particles (WIMP) started in [arXiv:2107.09688], focusing on a single complex electroweak $n$-plet with non-zero hypercharge added to the Standard Model. The minimal splitting between the…

High Energy Physics - Phenomenology · Physics 2022-11-23 Salvatore Bottaro , Dario Buttazzo , Marco Costa , Roberto Franceschini , Paolo Panci , Diego Redigolo , Ludovico Vittorio

Multiple astrophysical and cosmological observations show that the majority of the matter in the universe is non-luminous. It is not made of known particles, and it is called dark matter. This is one of the few pieces of concrete…

High Energy Physics - Experiment · Physics 2020-01-01 Oliver Buchmueller , Caterina Doglioni , Lian-Tao Wang

The electroweak mixing angle is a fundamental parameter of the theory of electroweak interactions. Its value has been measured precisely at the $\mathrm{Z}$-pole at colliders. In this contribution, we propose to exploit measurements of…

High Energy Physics - Phenomenology · Physics 2022-11-17 Federico Vazzoler , Simone Amoroso , Ekaterina Lipka , Clara Lavinia Del Pio , Mauro Chiesa , Fulvio Piccinini , Alessandro Vicini