Results 1 to 10 of about 165,969,103 (172)

Probing the BSM physics with CMB precision cosmology: an application to supersymmetry [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractThe cosmic history before the BBN is highly determined by the physics that operates beyond the Standard Model (BSM) of particle physics and it is poorly constrained observationally.
Ioannis Dalianis
exaly   +3 more sources

Density dependent displaced vertex signatures as a novel probe of light dark sector scalars at the LHC [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
Dynamical theories of dark energy predict new degrees of freedom with particular environmental sensitivity to avoid constraints on fifth forces. We show that the similar, yet complementary multi-purpose detector setup of the ATLAS and CMS experiments ...
Spyros Argyropoulos   +2 more
semanticscholar   +1 more source

Inflation in symmergent metric-Palatini gravity [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
In this paper, we study the cosmological inflation phenomenon in symmergent gravity theory. Symmergent gravity is a novel framework which merges gravity and the standard model (SM) so that the gravity emerges from the matter loops and restores the broken
N. Bostan, Canan Karahan, Ozan Sargın
semanticscholar   +1 more source

DARWIN – a next-generation liquid xenon observatory for dark matter and neutrino physics [PDF]

open access: yesInternational Conference on Rebooting Computing, 2021
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for weakly ...
J. Aalbers   +499 more
semanticscholar   +1 more source

Euclid preparation. XXIX. Water ice in spacecraft. I. The physics of ice formation and contamination [PDF]

open access: yesAstronomy & Astrophysics, 2023
Molecular contamination is a well-known problem in space flight. Water is the most common contaminant and alters numerous properties of a cryogenic optical system. Too much ice means that Euclid's calibration requirements and science goals cannot be met.
Euclid Collaboration M. Schirmer   +499 more
semanticscholar   +1 more source

A Portalino to the Twin Sector

open access: yesJournal of High Energy Physics, 2023
Extensions of the Standard Model are often highly constrained by cosmology. New states in the theory can dramatically alter observed properties of the universe by the presence of additional matter or entropy.
Di Liu, Neal Weiner
doaj   +1 more source

A novel solution to the gravitino problem

open access: yesJournal of High Energy Physics, 2023
In a general phenomenological model with local supersymmetry, the amount of massive gravitinos produced in early universe tends to violate the known dark matter density bound by many orders of magnitude.
Yu-Cheng Qiu, S.-H. Henry Tye
doaj   +1 more source

Constraining neutrino masses, the cosmological constant and BSM physics from the weak gravity conjecture [PDF]

open access: yesJournal of High Energy Physics, 2017
It is known that there are AdS vacua obtained from compactifying the SM to 2 or 3 dimensions. The existence of such vacua depends on the value of neutrino masses through the Casimir effect.
L. E. Ibáñez   +2 more
semanticscholar   +1 more source

Dark photon dark matter from cosmic strings and gravitational wave background

open access: yesJournal of High Energy Physics, 2023
Dark photon dark matter may be produced by the cosmic strings in association with the dark U(1) gauge symmetry breaking. We perform three-dimensional lattice simulations of the Abelian-Higgs model and follow the evolution of cosmic strings. In particular,
Naoya Kitajima, Kazunori Nakayama
doaj   +1 more source

Axion dark matter with thermal friction

open access: yesJournal of High Energy Physics, 2023
Cosmological evolution of axion field in the early universe might be significantly affected by a thermal friction induced by the axion coupling to thermalized hidden sector.
Kiwoon Choi   +3 more
doaj   +1 more source

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