Special Colloquium (and Astronomy Seminar)

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Date/Time:Friday, 23 Jan 2015 at 4:10 pm
Location:3 Physics (note location change for today)
Contact:Steven Kawaler, Physics and Astronomy
Phone:515-294-5440
Channel:College of Liberal Arts and Sciences
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The Smallest and the Biggest: Neutrinos and the Matter Dominated Universe (Dr. Asher Kaboth, Imperial College, London)

Why we see a universe dominated by matter--as opposed to one with equal matter and anti-matter--is an open problem in physics. I will discuss the motivation for searching for and current experimental constraints on the CP-violating parameter in the neutrino sector, which is one of the necessary (though not sufficient!) conditions for leptons to generate this asymmetry of the universe. I will focus on the T2K experiment, a long-baseline, accelerator-based neutrino experiment, which gives it sensitivity to the CP-violating parameter, especially in combination with other neutrino oscillation experiments. I will concentrate on the recent results from T2K which have placed some interesting constraints on the value of the CP-violating parameter. Finally, I will also discuss other current, future, and proposed experiments and what the neutrino field must do to search for this effect.