Major Field of Research

Theoretical Physics:

I am interested in the study of the fundamental interactions of Nature, as well as in searching for the theory that unify them. I also want to understand what are dark matter and dark energy that account for 95 percent of the Universe. 

In case you are interested, you can find out here most of my Publications


My research is supported by the Particle & Astroparticle Phenomenology Group - PApP, where I lead the national project `AstroParticles in the Universe´, and by the Consolider Project of Excellence, `Multimessenger Approach for Dark Matter Detection´ - MultiDark, which I coordinate. I also initiated in 2005 the Annual International Conference Series on Astroparticle Physics, `The Dark Side of the Universe' - DSU

In these matters, I work specially in:

* Elementary Particle Physics Beyond the Standard Model

I have studied the phenomenology of Grand Unified Theories, Supersymmetry, Supergravity and Superstrings, as well as built Standard-like Models from Superstrings. Currently, I am also working in the development of the Supersymmetric Standard Model that I proposed, the so-called µνSSM, with the aim of investigating its detectability at the LHC.

* Dark Matter

I study the particle nature of the Dark Matter in the Universe as well as its possible detection in underground labs, space-based detectors, and Cherenkov telescopes. In several particle-physics models, I have proposed and/or studied dark matter candidates such as the right-handed Sneutrino, the Gravitino, the Neutralino, or Weakly Interacting Massive Particles (WIMPs) in general. In collaboration with members of the Fermi Large Area Telescope, we have analyzed recently the annihilation of WIMPs in the inner galaxy. We have also searched for gamma-ray lines in the low-energy data, and as a consequence we have analyzed the implications of this search for gravitino dark matter in the µνSSM.