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184 papers · 1 filter
Magnetic field production during preheating at the electroweak scale
Andres Diaz-Gil, Juan Garcia-Bellido, Margarita Garcia Perez +1
We study the generation of magnetic fields during preheating within an scenario of hybrid inflation at the electroweak (EW) scale. We find that the non-perturbative and strongly ou…
Short Baseline Neutrino Oscillations and a New Light Gauge Boson
Ann E. Nelson, Jonathan Walsh
We consider a model of neutrino oscillations with three additional sterile neutrinos and a gauged B-L interaction. We find allowed values of the model parameters which can reconcil…
The scar mechanism revisited
F. Borondo, D. A. Wisniacki, E. G. Vergini +1
Unstable periodic orbits are known to originate scars on some eigenfunctions of classically chaotic systems through recurrences causing that some part of an initial distribution of…
The evolution of H{\sc ii} galaxies: Testing the bursting scenario through the use of self-consistent models
M. Martín Manjón, M. Mollá, A. I. Díaz +1
We have computed a series of realistic and self-consistent models of the emitted spectra of H{\sc ii} galaxies. Our models combine different codes of chemical evolution, evolutiona…
A second look at N=1 supersymmetric AdS_4 vacua of type IIA supergravity
Gerardo Aldazabal, Anamaria Font
We show that a class of type IIA vacua recently found within the N=4 effective approach corresponds to compactification on Ads_4 \times S^3 \times S^3/Z_2^3. The results obtained u…
Non-perturbative renormalisation of Delta F=2 four-fermion operators in two-flavour QCD
P. Dimopoulos, G. Herdoiza, F. Palombi +4
Using Schroedinger Functional methods, we compute the non-perturbative renormalisation and renormalisation group running of several four-fermion operators, in the framework of latt…