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Cristiano Galbiati

Cristiano Galbiati My interests lie at the intersection of particle physics, astrophysics and cosmology.

Dark matter: Recent observations from WMAP have shown that a large fraction of the energy in the Universe - 30% - is in the form of a dark matter fundamentally different from ordinary matter. Weakly Interacting Massive Particles, or WIMPs, created in the big bang, are one of the most promising ideas for what this dark matter could be. Particle physics provides a well-motivated possibility for the identity of the WIMP - the lightest, and by necessity stable, particle in supersymmetry. I am exploring new ideas on direct Dark Matter detection using gaseous Xenon or liquid Argon as detection medium. I am a member of the WARP experiment at Gran Sasso.

Solar Neutrinos: I am a member of the Borexino solar neutrino experiment. The Borexino experiment is now built and will start taking data in 2006. I had a significant role in the construction of the experiment, and had responsibilities for the construction of the nylon vessels - thin nylon ballons that serve as the scintillator containment system - and of the electronics for the muon veto. Borexino is well poised to make the first direct measurement of the low energy portion of the solar neutrino spectrum. This will provide a very sensitive test of the matter-enhanced neutrinos oscillations proposed as a solution of the old Solar Neutrinos Problem. Neutrinos oscillations are the first probe of new physics beyond the Standard Model of Interactions. Borexino will also be able to test several non-standard scenarios for neutrinos physics hypothesized by theorists to explain results from past experiments, i.e. Mass Varying Neutrinos (MVN) and Non-Standard Interactions (NSI). Borexino will also be able to measure neutrinos from radioactive decays in the earth's crust, the so-called geo-neutrinos.

Teaching: Fall 2005 - Physics 101

Research Opportunities: I am looking for one graduate student to work on the software and analysis for the Borexino experiment. I am looking for a second student to work on the Dark Matter and Ultra-High Energy Neutrinos project.

For more information:
Cristiano Galbiati's webpage

Selected Publications:


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