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Related papers: Anapole Dark Matter at the LHC

200 papers

We explore the simplest viable dark matter model with a real singlet scalar, vector-like singlet and doublet fermions. The Yukawa couplings associated with the fermion sector play a crucial role in getting the current relic density through…

High Energy Physics - Phenomenology · Physics 2022-03-02 Pritam Das , Mrinal Kumar Das , Najimuddin Khan

Dark matter communicating with the Standard Model solely via electroweak interactions provides a compelling picture. However, thermal freeze-out of electroweak doublet dark matter is generically strongly excluded by direct detection. We…

High Energy Physics - Phenomenology · Physics 2026-05-20 Nicolás Bernal , Sagnik Mukherjee , James Unwin

Searches for dark matter production at particle colliders are complementary to direct-detection and indirect-detection experiments, and especially powerful for small masses, $m_\chi<100$ GeV. An important collider dark matter signature is…

High Energy Physics - Experiment · Physics 2015-06-15 Ning Zhou , David Berge , Daniel Whiteson

In a model with an extra $U(1)$ gauge to SM gauge group, we have shown the allowed region of masses of extra gauge boson and the dark matter which is the lightest one among other right-handed Majorana fermions present in the model. To…

High Energy Physics - Phenomenology · Physics 2020-04-22 Imtiyaz Ahmad Bhat , Rathin Adhikari

We analyze a simple extension of the Standard Model where the dark matter particle is a Dirac fermion that is mixture of a singlet and an SU(2) doublet. The model contains only four free parameters: the singlet and the doublet masses and…

High Energy Physics - Phenomenology · Physics 2015-12-09 Carlos E. Yaguna

We consider the consequences of a neutral dark-matter particle with a nonzero electric and/or magnetic dipole moment. Theoretical constraints, as well as constraints from direct searches, precision tests of the standard model, the cosmic…

In this paper, we explore the possibility of a linearly polarized gamma-ray signal from dark matter annihilations in the Galactic center. Considering neutral weakly interacting massive particles, a polarized gamma-ray signal can be realized…

High Energy Physics - Phenomenology · Physics 2018-07-04 Wei-Chih Huang , Kin-Wang Ng

In the background of a charged AdS black hole, we consider a Dirac particle endowed with an arbitrary magnetic dipole moment. For non-zero charge and dipole coupling of the bulk fermion, we find that the dual boundary theory can be plagued…

High Energy Physics - Theory · Physics 2016-01-27 Manuela Kulaxizi , Rakibur Rahman

This brief review covers recent results on searches for dark matter in collider experiments, as well as from direct and indirect detection observatories. It focuses on generic searches for dark matter signatures at the LHC, e.g. mono-X,…

High Energy Physics - Phenomenology · Physics 2022-07-06 Vasiliki A. Mitsou

Pseudo-Dirac Dark Matter is a viable type of dark matter which originates from a new Dirac fermion whose two Weyl states get slightly split in mass by a small Majorana term. The decay of the heavier to the lighter state naturally occurs…

High Energy Physics - Phenomenology · Physics 2011-02-15 Andrea De Simone , Veronica Sanz , Hiromitsu Phil Sato

We present a summary of the current status of searches for dark matter at the LHC from the ATLAS and CMS experiments. For various assumptions in the simplified parameter space, the LHC exclusions is complementary to direct detection…

High Energy Physics - Experiment · Physics 2017-09-08 Tae Min Hong

Dark matter remains one of the most puzzling mysteries in Fundamental Physics of our times. Experiments at high-energy physics colliders are expected to shed light to its nature and determine its properties. This review talk focuses on…

High Energy Physics - Experiment · Physics 2015-11-05 Vasiliki A. Mitsou

The new contributions to the electron (muon) anomalous magnetic moment arising in mirror fermion theories have been calculated. Imposing the experimental constraint lowers the current upper bound on the ordinary - mirror lepton mixing…

High Energy Physics - Phenomenology · Physics 2009-10-22 F. Csikor , Z. Fodor

Results are presented from a search for particle dark matter (DM), extra dimensions, and unparticles using events containing a jet and an imbalance in transverse momentum. The data were collected by the CMS detector in proton-proton…

High Energy Physics - Experiment · Physics 2015-08-03 CMS Collaboration

We investigate the signatures at the Large Hadron Collider of a minimal model where the dark matter particle is a Majorana fermion that couples to the Standard Model via one or several coloured mediators. We emphasize the importance of the…

High Energy Physics - Phenomenology · Physics 2015-06-19 Mathias Garny , Alejandro Ibarra , Sara Rydbeck , Stefan Vogl

We discuss the most sensitive constraints on Light Dark Matter (LDM) from accelerator experiments NA64 and BaBar and compare it with recent results from direct searches at XENON1T, DAMIC-M, SuperCDMS, and DarkSide-50. We show that for the…

High Energy Physics - Phenomenology · Physics 2023-08-02 S. N. Gninenko , D. V. Kirpichnikov , N. V. Krasnikov

Dark matter (DM) is added to the Froggatt-Nielsen (FN) mechanism, and conditions for its successful freezeout identified. Requesting the FN scale $\Lambda_{\text{FN}}$ to be the cutoff of the theory renders freezeout scenarios surprisingly…

High Energy Physics - Phenomenology · Physics 2017-10-04 Carlos Alvarado , Fatemeh Elahi , Nirmal Raj

A few multiplets that can be added to the SM contain a lightest neutral component which is automatically stable and provides allowed DM candidates with a non-standard phenomenology. Thanks to coannihilations, a successful thermal abundance…

High Energy Physics - Phenomenology · Physics 2009-10-09 Marco Cirelli , Nicolao Fornengo , Alessandro Strumia

Weak interactions within a nucleus generate a nuclear spin dependent parity violating electromagnetic moment; the anapole moment. In heavy nuclei, the anapole moment is the dominant contribution to spin-dependent atomic parity violation. We…

Atomic Physics · Physics 2009-09-29 E. Gomez , S. Aubin , G. D. Sprouse , L. A. Orozco , D. P. DeMille

The CMS and ATLAS collaborations searched for Dark Matter (DM) particles directly produced in pair. The searches are performed using the full LHC Run-I dataset recorded with the CMS and ATLAS detectors in proton-proton collisions at a…

High Energy Physics - Experiment · Physics 2019-08-14 Annapaola de Cosa