Results 51 to 60 of about 4,842 (140)
Thermal production of astrophobic axions
Journal of High Energy PhysicsHot axions are produced in the early Universe via their interactions with Standard Model particles, contributing to dark radiation commonly parameterized as ∆N eff.
Marcin Badziak +3 more
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Multiple point criticality principle and Coleman-Weinberg inflation
Journal of High Energy Physics, 2022 We apply the multiple point criticality principle to inflationary model building and study Coleman-Weinberg inflation when the scalar potential is quadratic in the logarithmic correction.
Antonio Racioppi +2 more
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Phenomenological Hints from a Class of String Motivated Model Constructions
Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015 We use string theory constructions towards the generalisation of the supersymmetric standard model of strong and electroweak interactions. Properties of the models depend crucially on the location of fields in extradimensional compact space. This allows us to extract some generic lessons for the phenomenological properties of the low energy effective ...
Hans Peter Nilles, Michal Malinský
wiley +1 more source
BBN photodisintegration constraints on gravitationally produced vector bosons
Journal of High Energy Physics, 2022 Gravitational production of massive particles due to cosmic expansion can be significant during the inflationary and reheating period of the Universe. If the particle also has non-gravitational interactions that do not significantly affect its production,
Chee Sheng Fong +2 more
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Lepton Flavour Violation Experiments
Advances in High Energy Physics, Volume 2014, Issue 1, 2014., 2014 Lepton Flavour Violation in the charged lepton sector (CLFV) is forbidden in the Minimal Standard model and strongly suppressed in extensions of the model to include finite neutrino mixing. On the other hand, a wide class of Supersymmetric theories, even coupled with Grand Unification models (SUSY‐GUT models), predict CLFV processes at a rate within ...
F. Cei, D. Nicolò, Vincenzo Flaminio
wiley +1 more source
, 2019 This document is one of a series of whitepapers from the USQCD collaboration. Here, we discuss opportunities for Lattice Quantum Chromodynamics (LQCD) in the research frontier in fundamental symmetries and signals for new physics.
Bhattacharya, Tanmoy +6 more
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Inching toward the QCD axions with axion magnetic resonance in helioscopes
Journal of High Energy PhysicsUtilizing a helical magnet profile to enhance axion-photon conversion showed great promise in laboratory searches for high axion masses. We extend the mechanism, known as the axion-magnetic resonance (AMR), from laser experiments to axion helioscopes and
Hyeonseok Seong, Chen Sun, Seokhoon Yun
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Black hole evaporation beyond the Standard Model of particle physics
Journal of High Energy Physics, 2023 The observation of an evaporating black hole would provide definitive information on the elementary particles present in nature. In particular, it could discover or exclude particles beyond those present in the standard model of particle physics.
Michael J. Baker, Andrea Thamm
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, 2010 We consider the possibility of non-sequential generation(s) of Standard Model -like matter as a consequence of cancellation of global and gauge anomalies due to a new strongly interacting sector responsible for the electroweak symmetry breaking.
Antipin, Oleg +2 more
core +1 more source
Cosmic clues: DESI, dark energy, and the cosmological constant problem
Journal of High Energy PhysicsSeveral attempts to solve the cosmological constant problem, which concerns the value of the cosmological constant being extremely smaller than the Standard Model mass scales, have introduced a scalar field with a very flat potential that can be ...
Wen Yin
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