出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Core-collapse supernova neutrino-spectra are of interest not only for understanding the deep interior
of astrophysical explosions, but also for understanding the synthesis of many elements made
primarily in this environment. A new type of neutrino beam, the beta-beam, is now under discussion
as a next generation neutrino experiment. A low-energy version of this beam has been proposed
for a number of astrophysical applications. The energy range of these low-energy neutrinos
is the same as that of supernova neutrinos. We present a theoretical discussion of the importance
of low-energy beta-beams for improving our interpretation of a future galactic supernova signal.
We present a novel method, where fitting synthetic spectra, constructed by taking linear combinations
of beta-beam spectra, to the original supernova-neutrino spectra reproduces the folded differential
cross sections very accurately. Comparing the response in a terrestrial detector to these
synthetic responses provides a direct way to determine the main parameters of the supernovaneutrino
energy-distribution.
