Results 11 to 20 of about 177,126,089 (182)
The viability of modified gravity theories [PDF]
, 2009 PhDThis thesis studies the viability of classes of modified gravity (MG) theories based on generalisations of the Einstein-Hilbert action. Particular emphasis is given to f(R) theories in both the metric and Palatini formalisms, scalar-tensor theories ...
Uddin, Kotub
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Unification of the standard model and dark matter sectors in [SU(5) × U(1)]4
Journal of High Energy Physics, 2019 A simple model of dark matter contains a light Dirac field charged under a hidden U(1) gauge symmetry. When a chiral matter content in a strong dynamics satisfies the t’Hooft anomaly matching condition, a massless baryon is a natural candidate of the ...
Ayuki Kamada +2 more
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Kaluza-Klein FIMP dark matter in warped extra-dimensions
Journal of High Energy Physics, 2020 We study for the first time the case in which Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the standard model particles in an extra-dimensional Randall-Sundrum scenario. We assume that both
Nicolás Bernal +3 more
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Journal of High Energy Physics, 2022 In the absence of any hints of new physics in LHC, TeV dark matter candidates interacting through electroweak force (EWDM) are still highly motivated. We extend the Standard Model by adding an arbitrary SU(2) DM multiplet in non-chiral representation. In
Ramtin Amintaheri
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Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal
Journal of High Energy Physics, 2020 We study the cosmology and LHC phenomenology of a consistent strongly interacting dark sector coupled to Standard Model particles through a generic vector mediator.
Elias Bernreuther +3 more
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Cosmology with the Laser Interferometer Space Antenna [PDF]
, 2023 The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and ...
LISA Cosmology Working Grp
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On Under-determination in Cosmology [PDF]
, 2012 I discuss how modern cosmology illustrates under-determination of theoretical hypotheses by data, in ways that are different from most philosophical discussions.
Butterfield, Jeremy, Jeremy Butterfield
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Benefits of Objective Collapse Models for Cosmology and Quantum Gravity [PDF]
, 2013 We display a number of advantages of objective collapse theories for the resolution of long-standing problems in cosmology and quantum gravity. In particular, we examine applications of objective reduction models to three important issues: the origin of ...
Okon, Elias, Sudarsky, Daniel
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Thermodynamic evolution of secluded vector dark matter: conventional WIMPs and nonconventional WIMPs
Journal of High Energy Physics, 2019 The secluded dark matter resides within a hidden sector and self-annihilates into lighter mediators which subsequently decay to the Standard Model (SM) particles.
Kwei-Chou Yang
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Journal of High Energy Physics, 2020 Producing an acceptable thermal relic abundance of dark matter with masses ≫ 102 TeV is a challenge. We propose a novel mechanism where GeV-scale states establish a tiny thermal relic abundance for dark matter, which is later promoted to ultra massive ...
Hooman Davoudiasl, Gopolang Mohlabeng
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