31 research outputs found
On neutrino-atom scattering in searches for neutrino magnetic moments
In the experimental searches for neutrino magnetic moments using germanium
detectors one studies the ionization channel in the neutrino-atom scattering.
We find that the so-called stepping approximation to the neutrino-impact
ionization is exact in the semiclassical limit, and that the deviations from
this approximation are very small.Comment: 1 page, to appear in Nuclear Physics B Proceedings Supplement 2011
(Proceedings of the XXIV International Conference on Neutrino Physics and
Astrophysics, Athens, June 14-19, 2010
Electromagnetic neutrino-atom collisions: The role of electron binding
We present a new theoretical approach to neutrino-impact atomic excitation
and/or ionization due to neutrino magnetic moments. The differential cross
section of the process is given by a sum of the longitudinal and transverse
terms, which are induced by the corresponding components of the force that the
neutrino magnetic moment imposes on electrons with respect to momentum
transfer. In this context, the recent theoretical studies devoted to the
magnetic neutrino scattering on atoms are critically examined.Comment: 4 pages, published in proceedings of NOW201