Collqouium - Stephen Parke (FermiLab) - Unraveling the Mysteries of Neutrinos

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Stephen Parke
October 13, 2015
4:00PM - 5:00PM
Location
1080 Physics Research Building - Smith Seminar Room - reception at 3:45pm in the Atrium

Date Range
Add to Calendar 2015-10-13 16:00:00 2015-10-13 17:00:00 Collqouium - Stephen Parke (FermiLab) - Unraveling the Mysteries of Neutrinos

Neutrinos are the most numerous massive particles in the Universe. Their masses are very tiny, no larger than one millionth the mass of the electron. Are they like all the known massive fermions, being four component particles, or are they a new type of fermion never seen before, a two component fermion? Are there only three neutrinos or are there more species of neutrinos? Of the three neutrinos we know of, we have determined part of the mass pattern but not the complete pattern. Also we have measured some of their mixing parameters with reasonable precision via neutrino oscillation experiments but not all. Do neutrinos violate CP in neutrino oscillations? Can neutrinos help explain the baryon-antibaryon asymmetry of the Universe? I will address many of the important questions about the neutrinos and how the future Fermilab program will address some of these questions. 

1080 Physics Research Building - Smith Seminar Room - reception at 3:45pm in the Atrium Department of Physics physics@osu.edu America/New_York public
Description

Neutrinos are the most numerous massive particles in the Universe. Their masses are very tiny, no larger than one millionth the mass of the electron. Are they like all the known massive fermions, being four component particles, or are they a new type of fermion never seen before, a two component fermion? Are there only three neutrinos or are there more species of neutrinos? Of the three neutrinos we know of, we have determined part of the mass pattern but not the complete pattern. Also we have measured some of their mixing parameters with reasonable precision via neutrino oscillation experiments but not all. Do neutrinos violate CP in neutrino oscillations? Can neutrinos help explain the baryon-antibaryon asymmetry of the Universe? I will address many of the important questions about the neutrinos and how the future Fermilab program will address some of these questions.