22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Sensitivity Enhancement for the Searches of Neutrino Magnetic Moments through Atomic Ionization

24 Jul 2010, 11:45
12m
Salle 251 ()

Salle 251

Parallel Session Talk 07 - Neutrinos 07 - Neutrinos

Speaker

Hau-Bin Li (Academia Sinica)

Description

A new detection channel on atomic ionization for possible neutrino electromagnetic interactions was identified and studied. Orders of magnitude enhancement in sensitivities can be expected when the energy transfer to the target is of the atomic-transition scale. Interaction cross-section induced by neutrino magnetic moments (mu_nu) was evaluated. New upper limit of mu_nu < 1.3×10^{-11} μ_B at 90% confidence level was derived using current data with reactor neutrinos. Potential reaches of future experiments are discussed. Experiments with sub-keV sensitivities can probe mu_nu to 10^{-13} μ_B. Positive observations of mu_nu in this range would imply that neutrinos are Majorana particles. Analysis with new data will be presented. Reference : H.T. Wong, H.B. Li and S.T. Lin, arXiv:1001.2074 (2010).

Primary author

Hau-Bin Li (Academia Sinica)

Co-authors

Prof. Henry Wong (Academia Sinica) Dr Shin-Ted Lin (Academia Sinica)

Presentation Materials