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There are many extensions of the Standard Model with a dark matter (DM) candidate obtained via the freeze-out mechanism. It can happen that after all experimental and theoretical constraints are taken into account, all parameter points have…

High Energy Physics - Phenomenology · Physics 2024-07-09 Rodrigo Capucha , Karim Elyaouti , Margarete Mühlleitner , Johann Plotnikov , Rui Santos

The particle-physics nature of dark matter (DM) remains one of the central open questions in modern physics. A widely used framework to investigate DM properties is provided by simplified models (DMSimps), which extend the Standard Model…

High Energy Physics - Phenomenology · Physics 2025-10-13 Mattia Di Mauro , Bohan Xie

Thermal freeze-out is a compelling framework for naturally generating the dark matter abundance. We systematically study a broad range of dark matter and mediator particle combinations that can viably realize thermal freeze-out, focusing on…

High Energy Physics - Phenomenology · Physics 2025-12-04 Dan Hooper , Gordan Krnjaic , Tanner Trickle , Isaac R. Wang

We propose a new mechanism for thermal dark matter freezeout, termed Co-Decaying Dark Matter. Multi-component dark sectors with degenerate particles and out-of-equilibrium decays can co-decay to obtain the observed relic density. The dark…

High Energy Physics - Phenomenology · Physics 2016-12-08 Jeff Asaf Dror , Eric Kuflik , Wee Hao Ng

We consider a model of dark matter where the mediator corresponds to a superposition of a scalar and pseudoscalar, and the scenario where, after reheating, the number densities of the dark sector particles, i.e. the dark matter and the…

High Energy Physics - Phenomenology · Physics 2025-11-19 Geneviève Bélanger , Aoife Bharucha , Sreemanti Chakraborti , Rashidul Islam , Sophie Mutzel

SuperIso Relic is a public computing program for the calculation of flavour observables and relic density in supersymmetry (MSSM and NMSSM). We present new extensions of the code dedicated to the calculation of dark matter direct and…

High Energy Physics - Phenomenology · Physics 2018-12-03 G. Robbins , A. Arbey , F. Mahmoudi

Simplified models of the dark matter (co)annihilation mechanism predict striking new collider signatures untested by current searches. These models, which were codified in the coannihilation codex, provide the basis for a dark matter (DM)…

High Energy Physics - Phenomenology · Physics 2016-10-12 Malte Buschmann , Sonia El Hedri , Anna Kaminska , Jia Liu , Maikel de Vries , Xiao-Ping Wang , Felix Yu , Jose Zurita

We introduce DRAKE, a numerical precision tool for predicting the dark matter relic abundance also in situations where the standard assumption of kinetic equilibrium during the freeze-out process may not be satisfied. DRAKE comes with a set…

High Energy Physics - Phenomenology · Physics 2021-08-05 Tobias Binder , Torsten Bringmann , Michael Gustafsson , Andrzej Hryczuk

There are several ways to explain the dark matter relic density other than by the ordinary freeze-out scenario. For example, the freeze-in mechanism may constitute an alternative for generating the correct relic density for dark matter…

High Energy Physics - Phenomenology · Physics 2012-10-02 Andrew J. Williams , Celine Boehm , Stephen M. West , Daniel Albornoz Vasquez

We present MadDM v.1.0, a numerical tool to compute dark matter relic abundance in a generic model. The code is based on the existing MadGraph 5 architecture and as such is easily integrable into any MadGraph collider study. A simple Python…

High Energy Physics - Phenomenology · Physics 2014-09-09 Mihailo Backovic , Kyoungchul Kong , Mathew McCaskey

The status of the constrained minimal supersymmetric standard model (CMSSM) will be discussed in light of our current understanding of the relic density after WMAP. A global likelihood analysis of the model is performed including data from…

High Energy Physics - Phenomenology · Physics 2007-05-23 Keith A. Olive

We present MadDM v.2.0, a numerical tool for dark matter physics in a generic model. This version is the next step towards the development of a fully automated framework for dark matter searches at the interface of collider physics,…

High Energy Physics - Phenomenology · Physics 2015-11-20 Mihailo Backovic , Kyoungchul Kong , Antony Martini , Olivier Mattelaer , Gopolang Mohlabeng

There are strong evidences for existence of dark matter in some experiments at present. However, the question is that we do not have a reasonable explanation for dark matter in the framework of the Standard Model(SM) of particle physics. It…

High Energy Physics - Phenomenology · Physics 2019-05-29 Jing-Jing Feng , Shu-Min Zhao , Xing-Xing Dong , Zhong-Jun Yang , Hai-Bin Zhang , Fang Wang , Tai-Fu Feng

MadDM is an automated numerical tool for the computation of dark-matter observables for generic new physics models. We announce version 3.1 and summarize its features. Notably, the code goes beyond the mere cross-section computation for…

High Energy Physics - Phenomenology · Physics 2020-12-17 Chiara Arina , Jan Heisig , Fabio Maltoni , Luca Mantani , Daniele Massaro , Olivier Mattelaer , Gopolang Mohlabeng

We present here a new package to automatically generate a complete library of 2 to 2 squared amplitudes at leading order in any New Physics models. The package is written in C++ and based on the MARTY software. The numerical library…

High Energy Physics - Phenomenology · Physics 2023-08-23 M. Palmiotto , A. Arbey , F. Mahmoudi

This work presents an asymmetric dark matter model with relic density determined by the freeze-out of asymmetric semi-annihilations into long-lived particles slowly decaying into the Standard Model states. We carefully consider the $CPT$…

High Energy Physics - Phenomenology · Physics 2025-04-17 Tomáš Blažek , Peter Maták , Viktor Zaujec

The identity of Dark Matter (DM) is one of the most captivating topics in particle physics today. The R-parity conserving Minimal Supersymmetric Standard Model (MSSM), which naturally provides a DM candidate in the form of the lightest…

High Energy Physics - Phenomenology · Physics 2018-01-15 Carlos Ávila , Andrés Flórez , Alfredo Gurrola , Dale Julson , Savanna Starko

Non-thermal dark matter generation is an appealing alternative to the standard paradigm of thermal WIMP dark matter. We reconsider non-thermal production mechanisms in a systematic way, and develop a numerical code for accurate computations…

High Energy Physics - Phenomenology · Physics 2011-09-08 Giorgio Arcadi , Piero Ullio

We describe SuperIso Relic, a public program for the calculation of dark matter relic density and direct and indirect detection rates, which includes in addition the SuperIso routines for the calculation of flavour physics observables.…

High Energy Physics - Phenomenology · Physics 2019-04-17 A. Arbey , F. Mahmoudi , G. Robbins

We explore dark matter in the Finely Tuned Minimal Supersymmetric Standard model recently proposed by Arkani-Hamed and Dimopoulos. Relative to the MSSM, there are fewer particles at freeze-out, so the calculation of the relic abundance…

High Energy Physics - Phenomenology · Physics 2008-11-26 Aaron Pierce
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