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Sep 11, 2017

Lepton number violation phenomenology of d=7 neutrino mass models

We study the phenomenology of d=7 1-loop neutrino mass models. All models in this particular class require the existence of several new $SU(2)_L$ mul…
Mar 06, 2018

Heavy neutral fermions at the high-luminosity LHC

Long-lived light particles (LLLPs) appear in many extensions of the standard model. LLLPs are usually motivated by the observed small neutrino masses…
Apr 11, 2014

Quasinormal modes and greybody factors of a four-dimensional Lifshitz…

We study scalar perturbations for a four-dimensional asymptotically Lifshitz black hole in conformal gravity with dynamical exponent z=0, and spheric…
Nov 06, 2017

Hawking radiation and propagation of massive charged scalar field on …

In this paper we consider the three-dimensional G\"odel black hole as a background and we study the vector particle tunneling from this background in…
Jul 31, 2018
Analysis of PDEs

Let w(r,α) be the solution of (37). Then ¯w(r,α):=(~λ/λ)1/(q−k)w(r,α) satisfies

Multiplicity of bounded solutions to the $k$-Hessian equation with a …

The aim of this paper is to deal with the $k$-Hessian counterpart of the Laplace equation involving a nonlinearity studied by Matukuma. Namely, our m…
Jul 12, 2017

APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides the opportunity to measure elemental abundances for C, N, O, Na, Mg, Al,…
Dec 19, 2014

Greybody Factors of Massive Charged Fermionic Fields in a Charged T…

We study massive charged fermionic perturbations in the background of a charged two-dimensional dilatonic black hole, and we solve the Dirac equation…
Jul 24, 2014

Scalar field perturbations of a Lifshitz black hole in conformal grav…

We study the reflection and transmission coefficients and the absorption cross section for scalar fields in the background of a Lifshitz black hole i…
May 04, 2018
Numerical Analysis

Analysis and approximation of a vorticity-velocity-pressure formulati…

We introduce a family of mixed methods and discontinuous Galerkin discretisations designed to numerically solve the Oseen equations written in terms …
Apr 02, 2018

Deflection of light by rotating regular black holes using the Gauss…

In this paper, we study the weak gravitational lensing in the spacetime of rotating regular black hole geometries such as Ayon-Beato-Garc\'ia (ABG), …
Nov 21, 2018

Motion and collision of particles near DST Black holes

We consider Deser-Sarioglu-Tekin (DST) black holes as background and we study such the motion of massive particles as the collision of two spinning p…
Jul 14, 2015

Motion of particles on a Four-Dimensional Asymptotically AdS Black Ho…

Motivated by black hole solutions with matter fields outside their horizon, we study the effect of these matter fields in the motion of massless and …
Jan 09, 2018

Searches for light sterile neutrinos with multitrack displaced vertic…

We study discovery prospects for long-lived sterile neutrinos at the LHC with multitrack displaced vertices, with masses below the electroweak scale.…
Apr 03, 2017

Fermionic field perturbations of a three-dimensional Lifshitz black h…

We study the propagation of massless fermionic fields in the background of a three-dimensional Lifshitz black hole, which is a solution of conformal …
Apr 05, 2016

SOAR optical and near-infrared spectroscopic survey of newly discover…

In this work, we present a spectroscopic study of very massive stars found outside the center of the massive stellar cluster NGC3603. From the analys…
Oct 27, 2015
Analysis of PDEs

Bounded solutions of a $k$-Hessian equation in a ball

We consider the problem \begin{equation}\label{Eq:Abstract} (1)\;\;\;\begin{cases} S_k(D^2u)= \lambda (1-u)^q &\mbox{in }\;\; B,\\ u <0 & \mbox{in }\…
Aug 22, 2018

Spontaneous Momentum Dissipation and Coexistence of Phases in Holog…

We discuss the possible phases dual to the AdS hairy black holes in Horndeski theory. In the probe limit breaking the translational invariance, we st…
Jun 13, 2018

Displaced vertices as probes of sterile neutrino mixing at the LHC

We investigate the reach at the LHC to probe light sterile neutrinos with displaced vertices. We focus on sterile neutrinos $N$ with masses $m_{N} \s…
Mar 18, 2017

Quasinormal modes of a scalar field in the Einstein--Gauss--Bonnet-Ad…

It has recently been found that quasinormal modes of asymptotically anti-de Sitter (AdS) black holes in theories with higher curvature corrections ma…
Feb 06, 2018

Motion and collision of particles in rotating linear dilaton black ho…

We study the motion of particles in the background of a four-dimensional linear dilaton black hole. We solve analytically the equations of motion of …
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