Imaging devices made from an ionization target layer of amorphous selenium (aSe) coupled to a silicon complementary metal-oxide-semiconductor (CMOS) active pixel array for charge readout are a promising technology for neutrino physics. The high spatial resolution in a solid-state target provides unparalleled rejection of backgrounds from natural radioactivity in the search for neutrinoless ββ decay and for electron neutrino (νe) spectroscopy with 82Se. In this white paper, we summarize the broad scientific program of a large imaging detector with a 10-ton target of 82Se. We review the detector technology, and outline the ongoing research program to realize this experiment.
@article{arxiv.2203.08779,
title = {Snowmass 2021 White Paper: The Selena Neutrino Experiment},
author = {A. E. Chavarria and C. Galbiati and B. Hernandez-Molinero and Al. Ianni and X. Li and Y. Mei and D. Montanino and X. Ni and C. Peña Garay and A. Piers and H. Wang},
journal= {arXiv preprint arXiv:2203.08779},
year = {2022}
}