[Triumf-seminars] TRIUMF Seminar today at 14:00

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Date/Time: Tue 2007-09-18 at 14:00

Location:  Auditorium          

Speaker:   Motohiko Yoshimura (Okayama University)

Title:     Towards Neutrino Spectroscopy

Abstract: Despite impressive recent developments in neurtino physics, there are still many unanswered questions. These are
1. how big the smallest neutrino mass is
2. precision determination of mixing parameters,
3. type of neutrino masses, whether they belong to the Dirac or the Majorana classes
4. CP violation in the neutrino sector
To answer even partially these questions enlarges our fundamental understanding of unified theories and how the matter dominated universe emerged.

This talk describes an entirely new approach to determine both the magnitude and the type of neutrino masses and the mixing. Its basic strategy is to use atomic levels, so close to the expected neutrino mass range.

I will start from the basic property of Majorana particles and how experimentally the Majorana particle can
be distinguished from the Dirac particle. Some examples of experimental methods are explained, along with a rate estimate.

If the methods work ideally, one might even hope to detect the relic cosmic neutrino, which is also mentioned briefly.

Stimulants available 15 minutes before the talk.

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