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Related papers: Distinguishing Dynamical Dark Matter at the LHC

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We present an in-depth study of two-component cold dark matter via extensive N-body simulations. We examine various cosmological observables including the temperature evolution, power spectrum, density perturbation, maximum circular…

High Energy Physics - Phenomenology · Physics 2024-10-10 Jeong Han Kim , Kyoungchul Kong , Se Hwan Lim , Jong-Chul Park

Interacting dark energy-dark matter models have been widely analyzed in the literature in an attempt to find traces of new physics beyond the usual cosmological ($\Lambda$CDM) models. Such a coupling between both dark components is usually…

General Relativity and Quantum Cosmology · Physics 2022-08-17 Diego Álvarez-Ortega , Gonzalo J. Olmo , Diego Rubiera-García , Diego Sáez-Chillón Gómez

We argue that dark matter particles which have strong interactions with the Standard Model particles are not excluded by current astrophysical constraints. These dark matter particles have unique signatures at colliders; instead of missing…

High Energy Physics - Phenomenology · Physics 2011-09-29 Yang Bai , Arvind Rajaraman

The presence of a non-baryonic Dark Matter (DM) component in the Universe is inferred from the observation of its gravitational interaction. The ATLAS and CMS experiments located at the LHC have developed a broad search program for DM…

High Energy Physics - Experiment · Physics 2021-11-02 Janik von Ahnen

Conventional approaches to describe dark matter phenomenology at collider and (in)direct detection experiments in the form of dark matter effective field theory or simplified models suffer in general from drawbacks regarding validity at…

High Energy Physics - Phenomenology · Physics 2018-03-23 Tommi Alanne , Florian Goertz

We show that a conformal-invariant dark sector, interacting conformally with the Standard Model (SM) fields through the Higgs portal, provides a viable framework where cold dark matter (CDM) and invisible Higgs decays can be addressed…

High Energy Physics - Phenomenology · Physics 2014-01-27 Durmus A. Demir , Mariana Frank , Beste Korutlu

The search for Dark Matter (DM) has great potential to reveal physics beyond the Standard Model. As such, searches for evidence of DM particles are being carried out using a wide range of techniques, such as direct searches for DM…

We study the cosmology and LHC phenomenology of a consistent strongly interacting dark sector coupled to Standard Model particles through a generic vector mediator. We lay out the requirements for the model to be cosmologically viable,…

High Energy Physics - Phenomenology · Physics 2020-03-03 Elias Bernreuther , Felix Kahlhoefer , Michael Krämer , Patrick Tunney

We show that dark matter emerging from late decays (z < 1000) produces a linear power spectrum identical to that of Cold Dark Matter (CDM) on all observationally relavant scales (> 0.1 Mpc), and simultaneously generates observable…

Astrophysics · Physics 2008-11-26 Louis E. Strigari , Manoj Kaplinghat , James S. Bullock

We study the global dynamics of the universe within the framework of the Interacting Dark Matter (IDM) scenario. Assuming that the dark matter obeys the collisional Boltzmann equation, we can derive analytical solutions of the global…

Astrophysics · Physics 2015-05-13 S. Basilakos , M. Plionis

The distribution of the non-luminous matter in galaxies of different luminosity and Hubble type is much more than a proof of the existence of dark particles governing the structures of the Universe. Here, we will review the complex but…

Astrophysics of Galaxies · Physics 2019-02-25 Paolo Salucci

Using a set of high-resolution N-body simulations, we extend the unified distribution model of cold dark matter (CDM) subhaloes to the warm dark matter(WDM) case. The same model framework combining the unevolved mass function, unevolved…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-06 Feihong He , Jiaxin Han , Hongyu Gao , Jiajun Zhang

The direct-search experiment for dark matter performed by the CDMS II Collaboration has observed two candidate events. Although these events cannot be interpreted as significant evidence for the presence of weakly interacting massive…

High Energy Physics - Phenomenology · Physics 2010-05-07 Xiao-Gang He , Tong Li , Xue-Qian Li , Jusak Tandean , Ho-Chin Tsai

We introduce the Fuzzy Dark Sector (FDS) scenario as a rich, interacting system and candidate for dark matter. This serves as a natural extension of the single-component, non-interacting Fuzzy Dark Matter (FDM) paradigm. Concretely, we…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-22 Christian Capanelli , Elisa G. M. Ferreira , Evan McDonough

Dark photons (DP) are interesting as potential mediators between the dark matter (DM) sector and the fields of the Standard Model (SM). The interaction of the DP, described by a broken $U(1)_D$ gauge symmetry, with the SM is usually…

High Energy Physics - Phenomenology · Physics 2019-06-26 Thomas G. Rizzo

A new type of dark matter (DM) theories are proposed in the light of the standard model (SM) singlet scalar $\phi$ which is responsible for the diphoton excess at the LHC Run 2. In the so-called $\phi$-portal DM models, after taking into…

High Energy Physics - Phenomenology · Physics 2016-02-15 Huayong Han , Shaoming Wang , Sibo Zheng

The more we go deep into the knowledge of the dark component which embeds the stellar component of galaxies, the more we realize the profound interconnection between them. We show that the scaling laws among the structural properties of the…

Cosmology and Nongalactic Astrophysics · Physics 2017-07-05 Paolo Salucci , Nicola Turini

Cosmological and astrophysical observations suggest that 85\% of the total matter of the Universe is made of Dark Matter (DM). However, its nature remains one of the most challenging and fundamental open questions of particle physics.…

We show that a general semi-annihilation scenario, in which a pair of dark matter (DM) particles annihilate to an anti-DM, and an unstable state that can mix with or decay to standard model states, can lead to particle anti-particle…

High Energy Physics - Phenomenology · Physics 2020-10-21 Avirup Ghosh , Deep Ghosh , Satyanarayan Mukhopadhyay

A minimal model of Cold Dark Matter (CDM) is a very massive particle with only gravitational interactions, also called Planckian Interacting Dark Matter (PIDM). Here we consider an extension of the PIDM framework by an unbroken $U(1)$ gauge…

High Energy Physics - Phenomenology · Physics 2019-01-16 Mathias Garny , Andrea Palessandro , McCullen Sandora , Martin S. Sloth
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