Results 21 to 30 of about 7,586,252 (286)

Axion inflation in the strong-backreaction regime: decay of the Anber-Sorbo solution

open access: yesJournal of High Energy Physics, 2023
Axion inflation coupled to Abelian gauge fields via a Chern-Simons-like term of the form ϕF F ~ $$ \phi F\overset{\sim }{F} $$ represents an attractive inflationary model with a rich phenomenology, including the production of magnetic fields, black holes,
Richard von Eckardstein   +4 more
doaj   +1 more source

Dark matter substructures affect dark matter-electron scattering in xenon-based direct detection experiments

open access: yesJournal of High Energy Physics, 2023
Recent sky surveys have discovered a large number of stellar substructures. It is highly likely that there are dark matter (DM) counterparts to these stellar substructures.
Tarak Nath Maity, Ranjan Laha
doaj   +1 more source

Review of particle physics

open access: yes, 2004
This biennial Review summarizes much of Particle Physics. Using data from previous editions, plus 1726 new measurements from 512 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons.
Particle Data Group, Particle Data Grp
core   +1 more source

WIMPs, FIMPs, and Inflaton phenomenology via reheating, CMB and ∆N eff

open access: yesJournal of High Energy Physics, 2023
In this paper, we extensively analyzed the reheating dynamics after inflation and looked into its possible implication on dark matter (DM) and inflaton phenomenology.
MD Riajul Haque   +2 more
doaj   +1 more source

The Lukewarm Frontier: Some Cosmological Consequences of 'Low Energy' Physics [PDF]

open access: yes, 2010
In this thesis, we present four projects featuring low characteristic energy scales relative to the scales relevant for supersymmetric dark matter production or inflation. We present a telescope search for decaying relic axions in the 3 − 8 eV mass range.
Grin, Daniel
core   +1 more source

Modulated reheating and large non-gaussianity in string cosmology [PDF]

open access: yes, 2012
A generic feature of the known string inflationary models is that the same physics that makes the inflaton lighter than the Hubble scale during inflation often also makes other scalars this light.
CICOLI, MICHELE   +9 more
core   +1 more source

A Minimal Supersymmetric Model of Particle Physics and the Early Universe

open access: yes, 2013
We consider a minimal supersymmetric extension of the Standard Model, with right-handed neutrinos and local B-L, the difference between baryon and lepton number, a symmetry which is spontaneously broken at the scale of grand unification. To a large extent, the parameters of the model are determined by gauge and Yukawa couplings of quarks and leptons ...
Buchmuller, W.   +3 more
openaire   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Bubble-wall velocity in local thermal equilibrium: hydrodynamical simulations vs analytical treatment

open access: yesJournal of High Energy Physics
We perform real-time hydrodynamical simulations of the growth of bubbles formed during cosmological first-order phase transitions under the assumption of local thermal equilibrium.
Tomasz Krajewski   +2 more
doaj   +1 more source

Quantum interference in gravitational particle production

open access: yesJournal of High Energy Physics, 2022
Previous numerical investigations of gravitational particle production during the coherent oscillation period of inflation displayed unexplained fluctuations in the spectral density of the produced particles.
Edward Basso   +3 more
doaj   +1 more source

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