Polarized Bolometer, a New Tool Essential to Neutrino Physics?

A polarized bolometer may become an essential tool to study the scattering of neutrinos because these particles are intrinsically polarized in their direction of propagation. Polarized solid targets were widely used in nuclear and high-energy physics during the sixties. Later on, many studies were conducted with gases (Xe 139 and He 3 ) for NMR medical purposes. In their paper, Tarso Franarin and Malcolm Fairbairn (Phys. Rev D 94: 053004) show that a polarized target, in fact gaseous He 3 , can change the interaction strength between the neutrino and the target, in the best case to suppress it leaving the possibility to search for dark matter, even with the floor of solar neutrinos. We take advantage of the polarization to modify the interaction, changing the part coming from the axial interaction. In this paper, we recall an old but well-known procedure to polarize nuclei embedded in a dielectric solid and indicate interesting paths for different nuclei which appear as promising targets for neutrino scattering and therefore for neutrino physics.