Physics Colloquium

"Neutrino Physics and Mass from Cosmology"

Presented by Marilena Loverde, Stony Brook University

Tuesday, April 26, 2016, 3:30 pm — Large Seminar Room, Bldg. 510

Cosmic background neutrinos are nearly as abundant as cosmic microwave background photons, but their mass, which determines the strength of their gravitational clustering, is unknown. Neutrino oscillation data gives a strict lower limit on neutrino mass, while cosmological datasets provide the most stringent upper limit. Even if the neutrino masses are the minimum required by oscillation data, their gravitational effects on structure formation will nevertheless be detectable in — and in fact required to explain — data within the next decade. I will discuss the physical effects of the cosmic neutrino background on structure formation and present a new signature that may be used to measure neutrino mass with large galaxy surveys.

Hosted by: Robert Pisarski

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