Results 11 to 20 of about 1,667,560 (344)

Modified dark matter: Relating dark energy, dark matter and baryonic matter [PDF]

open access: yesInternational Journal of Modern Physics D, 2018
Modified dark matter (MDM) is a phenomenological model of dark matter, inspired by gravitational thermodynamics. For an accelerating universe with positive cosmological constant ([Formula: see text]), such phenomenological considerations lead to the emergence of a critical acceleration parameter related to [Formula: see text].
Edmonds, Douglas   +4 more
openaire   +6 more sources

Dark energy and dark matter [PDF]

open access: yesPhysics Letters B, 2003
4 pages latex, 2 ...
COMELLI, DANIELE   +2 more
openaire   +5 more sources

Dark Matter “Collider” from Inelastic Boosted Dark Matter [PDF]

open access: yesPhysical Review Letters, 2017
We propose a novel dark matter (DM) detection strategy for the models with non-minimal dark sector. The main ingredients in the underlying DM scenario are a boosted DM particle and a heavier dark sector state. The relativistic DM impinged on target material scatters off inelastically to the heavier state which subsequently decays into DM along with ...
Kim, Doojin   +2 more
openaire   +4 more sources

Brief History of Ultra-light Scalar Dark Matter Models [PDF]

open access: yes, 2018
This is a review on the brief history of the scalar field dark matter model also known as fuzzy dark matter, BEC dark matter, wave dark matter, or ultra-light axion.
Lee, Jae-Weon
core   +3 more sources

Dark sector unifications: Dark matter-phantom energy, dark matter - constant w dark energy, dark matter-dark energy-dark matter

open access: yesPhysics Letters B, 2019
The paper brings a novel approach to unification of dark matter and dark energy in terms of a cosmic fluid. A model is introduced in which the cosmic fluid speed of sound squared is defined as a function of its equation of state (EoS) parameter. It is shown how logarithmic part of this function results in dynamical regimes previously not observed in ...
Dalibor Perković, Hrvoje Štefančić
openaire   +3 more sources

Charming dark matter [PDF]

open access: yesJournal of High Energy Physics, 2017
46 pages, 22 figures.
Thomas Jubb   +2 more
openaire   +6 more sources

Has the origin of the third-family fermion masses been determined?

open access: yesJournal of High Energy Physics, 2021
Precision measurements of the Higgs couplings are, for the first time, directly probing the mechanism of fermion mass generation. The purpose of this work is to determine to what extent these measurements can distinguish between the tree-level mechanism ...
Michael J. Baker   +2 more
doaj   +1 more source

Combining outlier analysis algorithms to identify new physics at the LHC

open access: yesJournal of High Energy Physics, 2021
The lack of evidence for new physics at the Large Hadron Collider so far has prompted the development of model-independent search techniques. In this study, we compare the anomaly scores of a variety of anomaly detection techniques: an isolation forest ...
Melissa van Beekveld   +9 more
doaj   +1 more source

Constraining Dark Boson Decay Using Neutron Stars

open access: yesUniverse, 2023
Inspired by the well-known anomaly in the lifetime of the neutron, we investigated its consequences inside neutron stars. We first assessed the viability of the neutron decay hypothesis suggested by Fornal and Grinstein within neutron stars, in terms of ...
Wasif Husain   +2 more
doaj   +1 more source

Dark matter and dark radiation [PDF]

open access: yesPhysical Review D, 2009
14 pages, 6 figures Updated equations and ...
Ackerman, Lotty   +3 more
openaire   +3 more sources

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