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

[postmaster at admin.triumf.ca]

Date/Time: Tue 2010-07-13 at 14:00

Location:  Auditorium          

Speaker:   Avraham Gal (Hebrew University)

Title:     Neutrino properties without detecting neutrinos in electron capture measurements at GSI?

Abstract: Unexpected time modulation of EC decay rates, with period of about 7 s, was reported in single-ion measuremnets of two-body decays of H-like heavy ions at GSI by monitoring the motion of the parent ion and recoil ion in the storage ring. I conjecture that this time modulation may be related to neutrino spin precession in the static magnetic field of the storage ring, a scenario that requires a Dirac neutrino magnetic moment six times lower than the Borexino solar neutrino upper limit 0.54 x 10E(-10) Bohr magneton.

I also show in a way not discussed before that the time modulation associated with interference between massive neutrino amplitudes, if such interference could arise, is of a period at least four orders of magnitude shorter than reported and must average to zero given the time resolution in the GSI measurements.

Stimulants available 15 minutes before the talk.

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