학술논문
Potential for a precision measurement of solar $pp$ neutrinos in the Serappis Experiment
Document Type
Working Paper
Author
Bieger, Lukas; Birkenfeld, Thilo; Blum, David; Depnering, Wilfried; Enqvist, Timo; Enzmann, Heike; Gao, Feng; Genster, Christoph; Göttel, Alexandre; Grewing, Christian; Gromov, Maxim; Hackspacher, Paul; Hagner, Caren; Heinz, Tobias; Kampmann, Philipp; Karagounis, Michael; Kruth, Andre; Kuusiniemi, Pasi; Lachenmaier, Tobias; Liebau, Daniel; Liu, Runxuan; Loo, Kai; Ludhova, Livia; Meyhöfer, David; Müller, Axel; Muralidharan, Pavithra; Oberauer, Lothar; Othegraven, Rainer; Parkalian, Nina; Pei, Yatian; Pilarczyk, Oliver; Rebber, Henning; Robens, Markus; Roth, Christian; Sawatzki, Julia; Schweizer, Konstantin; Settanta, Giulio; Slupecki, Maciej; Smirnov, Oleg; Stahl, Achim; Steiger, Hans; Steinmann, Jochen; Sterr, Tobias; Stock, Matthias Raphael; Tang, Jian; Theisen, Eric; Tietzsch, Alexander; Trzaska, Wladyslaw; Boom, Johannes van den; van Waasen, Stefan; Vollbrecht, Cornelius; Wiebusch, Christopher; Wonsak, Bjoern; Wurm, Michael; Wysotzki, Christian; Xu, Yu; Yegin, Ugur; Zambanini, Andre; Züfle, Jan
Source
Subject
Language
Abstract
The Serappis (SEarch for RAre PP-neutrinos In Scintillator) project aims at a precision measurement of the flux of solar $pp$ neutrinos on the few-percent level. Such a measurement will be a relevant contribution to the study of solar neutrino oscillation parameters and a sensitive test of the solar luminosity constraint. The concept of Serappis relies on a small organic liquid scintillator detector ($\sim$20 m$^3$) with excellent energy resolution ($\sim$2.5 % at 1 MeV), low internal background and sufficient shielding from surrounding radioactivity. This can be achieved by a minor upgrade of the OSIRIS facility at the site of the JUNO neutrino experiment in southern China. To go substantially beyond current accuracy levels for the $pp$ flux, an organic scintillator with ultra-low $^{14}$C levels (below $10^{-18}$) is required. The existing OSIRIS detector and JUNO infrastructure will be instrumental in identifying suitable scintillator materials, offering a unique chance for a low-budget high-precision measurement of a fundamental property of our Sun that will be otherwise hard to access.
Comment: 13 pages, 5 figures
Comment: 13 pages, 5 figures