Towards the Detection of Cosmological Relic Neutrinos with Neutrino Capture on Beta Decaying Nuclei
Who: Marcello Messina (Bern University)
When: Friday, November 12, 2010 at 12:30
Where: The CP³ meeting room
Abstract: The topic of the seminar will be on a novel idea for the detection Cosmological Relic Neutrinos (CRN) and more in general, for the detection of neutrinos of vanishing energy. This idea is described in detail in the paper [1]. The method is based on the fact that neutrino interactions on beta-instable nuclei have the key feature of requiring no energy threshold for the neutrino interaction. Furthermore, in reference [1] a very interesting feature of v is shown for neutrino interacting with beta-instable nuclei: even if the kinetic neutrino energy vanishes v keeps a constant value depending only on the considered target nucleus. This allows, in principle, the detection of neutrinos of vanishing energy. In order to achieve high detection sensitivity one needs for CRNs discovery new developments are necessary in the field of detectors technology. In the seminar I will describe several detection technologies and eventually I illustrate a possible experimental approach for the discovery of the Cosmological Relic Neutrinos.
[1] A. Cocco, G. Mangano and M. Messina, “Probing Low Energy Neutrino Backgrounds with Neutrino Capture on Beta Decaying Nuclei,” Journal of Cosmological and Astroparticle Physics 0706 15 (2007).
MediaSlides from the talk