Study of supernova -nucleus coherent scattering interactions

Abstract

Presently, there are several experimental setups dedicated to rare event searches, such as dark matter interactions or double beta decay, in the building or commissioning phases. These experiments often use large mass detectors and have excellent performance in terms of energy resolution, low threshold and extremely low backgrounds. In this paper we show that these setups have the possibility to exploit coherent scattering on nuclei to detect neutrinos from galactic supernova explosions, thus enlarging the number of early detection "observatories" available and helping in the collection of valuable data to perform flavour-independent studies of neutrinos' emission spectra.

Searching for supernova neutrinos with dark matter detectors

“…The details of the calculation can be found in [9]; it has been tested and is in full agreement with the outcomes of [6]. The results are reported in Figure 1; it shows that most of the interactions due to neutrino coherent scattering process give signals in a very low energy region.…”

“…This includes the dark matter detectors, searching for direct proof of weakly interacting massive particles (WIMPs), and also those dedicated to the detection of a signal from neutrinoless double beta decay. Some of these experiments already manifested the intention to exploit supernova neutrino events [6,7,8] by means of neutrino coherent scattering.…”

Sensitivity of the PICO-500 bubble chamber to supernova neutrinos through coherent nuclear elastic scattering

“…A three-temperature Boltzmann distribution model has been widely employed to describe the simulated spectra of supernova neutrinos [13,21]:…”

Supernova neutrino physics with a nuclear emulsion detector

“…if θ sc = 0, π and 0 ≤ φ sc < π/2 or φ sc > 3π/2 F (θ sc , φ sc ) − π F (θ sc , φ sc ) + π if 0 < θ sc < π/2 if π/2 ≤ θ sc < π and π/2 < φ sc < 3π/2 (25) θ e = tan −1 sin φ sc / cos 2 φ sc + cot 2 θ sc ,…”