Results 71 to 80 of about 4,842 (140)

Self consistent thermal resummation: a case study of the phase transition in 2HDM

Journal of High Energy Physics
An accurate description of the scalar potential at finite temperature is crucial for studying cosmological first-order phase transitions (FOPT) in the early Universe.
Pedro Bittar, Subhojit Roy, Carlos E. M. Wagner   +2 more
doaj   +1 more source

Moduli trapping mechanism in modular flavor symmetric models

Journal of High Energy Physics, 2023
We discuss how the moduli in modular flavor symmetric models dynamically select enhanced symmetry points at which the residual modular symmetry renders extra matter fields massless.
Shota Kikuchi, Tatsuo Kobayashi, Kaito Nasu, Yusuke Yamada   +3 more
doaj   +1 more source

Neutron Electric Dipole Moments from Beyond the Standard Model Physics

, 2014
Neutron Electric Dipole Moment (nEDM), a generic feature of CP-violation, is predicted to be very small in the Standard Model, but can be much larger in most extensions of the model.
Bhattacharya, Tanmoy, Cirigliano, Vincenzo, Gupta, Rajan   +2 more
core   +1 more source

Early vs late string networks from a minimal QCD Axion

Journal of High Energy Physics
We propose a new regime of minimal QCD axion dark matter that lies between the pre- and post-inflationary scenarios, such that the Peccei-Quinn (PQ) symmetry is restored only on sufficiently large spatial scales.
Marco Gorghetto, Edward Hardy, Horia Nicolaescu, Alessio Notari, Michele Redi   +4 more
doaj   +1 more source

Phases of New Physics in the CMB

, 2016
Fluctuations in the cosmic neutrino background are known to produce a phase shift in the acoustic peaks of the cosmic microwave background. It is through the sensitivity to this effect that the recent CMB data has provided a robust detection of free ...
Baumann, Daniel, Green, Daniel, Meyers, Joel, Wallisch, Benjamin   +3 more
core   +1 more source

Dark Radiation Constraints on Heavy QCD Axions

Journal of High Energy Physics
The naturalness problem of PQ symmetry motivates study of the heavy QCD axion, with masses m a > 1 MeV generated at scales above the QCD scale, and low values of the PQ symmetry breaking scale, f a .
David I. Dunsky, Lawrence J. Hall, Keisuke Harigaya   +2 more
doaj   +1 more source

New developments in FeynRules

, 2013
The program FeynRules is a Mathematica package developed to facilitate the implementation of new physics theories into high-energy physics tools.
Alloul, Adam, Christensen, Neil D., Degrande, Celine, Duhr, Claude, Fuks, Benjamin   +4 more
core   +1 more source

New Experimental limit on Optical Photon Coupling to Neutral, Scalar Bosons

, 2008
We report on the first results of a sensitive search for scalar coupling of photons to a light neutral boson in the mass range of approximately 1.0 milli-electron volts and coupling strength greater than 10$^-6$ GeV$^-1$ using optical photons. This was a
A. Afanasev, G. Biallas, J. Boyce, J. Jaeckel, K. B. Beard, L. B. Okun, M. Minarni, M. Shinn, O. K. Baker, P. Slocum, R. Ramdon, S. Andriamonje   +11 more
core   +1 more source

Hybrid inflation, reheating and dark radiation in a IIB perturbative moduli stabilization scenario

Journal of High Energy Physics
We study the cosmological implications of an effective field theory model derived within a configuration of D7 brane stacks in the framework of type-IIB string theory.
Waqas Ahmed, Athanasios Karozas, George K. Leontaris, Ilias Tavellaris   +3 more
doaj   +1 more source

Impact of Beyond the Standard Model Physics in the Detection of the Cosmic Neutrino Background

, 2017
We discuss the effect of Beyond the Standard Model charged current interactions on the detection of the Cosmic Neutrino Background by neutrino capture on tritium in a PTOLEMY-like detector.
Arteaga, Martín, Bertuzzo, Enrico, Funchal, Renata Zukanovich, Perez-Gonzalez, Yuber F.   +3 more
core   +1 more source