학술논문
Observation of a nuclear recoil peak at the 100 eV scale induced by neutron capture
Document Type
Working Paper
Author
CRAB Collaboration; NUCLEUS Collaboration; Abele, H.; Angloher, G.; Bento, A.; Canonica, L.; Cappella, F.; Cardani, L.; Casali, N.; Cerulli, R.; Chalil, A.; Chebboubi, A.; Colantoni, I.; Crocombette, J. -P.; Cruciani, A.; Del Castello, G.; Roccagiovine, M. del Gallo; Desforge, D.; Doblhammer, A.; Dumonteil, E.; Dorer, S.; Erhart, A.; Fuss, A.; Friedl, M.; Garai, A.; Ghete, V. M.; Giuliani, A.; Goupy, C.; Gunsing, F.; Hauff, D.; Jeanneau, F.; Jericha, E.; Kaznacheeva, M.; Kinast, A.; Kluck, H.; Langenkämper, A.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Litaize, O.; Mancuso, M.; de Marcillac, P.; Marnieros, S.; Materna, T.; Mauri, B.; Mazzolari, A.; Mazzucato, E.; Neyrial, H.; Nones, C.; Oberauer, L.; Ortmann, T.; Ouzriat, A.; Pattavina, L.; Peters, L.; Petricca, F.; Poda, D. V.; Potzel, W.; Pröbst, F.; Reindl, F.; Rogly, R.; Romagnoni, M.; Rothe, J.; Schermer, N.; Schieck, J.; Schönert, S.; Schwertner, C.; Scola, L.; Serot, O.; Soum-Sidikov, G.; Stodolsky, L.; Strauss, R.; Tamisari, M.; Thulliez, L.; Tomei, C.; Vignati, M.; Vivier, M.; Wagner, V.; Wex, A.
Source
Phys. Rev. Lett. 130, 211802 (2023)
Subject
Language
Abstract
Coherent elastic neutrino-nucleus scattering and low-mass Dark Matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO$_4$ cryogenic detector from the NUCLEUS experiment exposed to a $^{252}$Cf source placed in a compact moderator. The measured spectrum is found in agreement with simulations and the expected peak structure from the single-$\gamma$ de-excitation of $^{183}$W is identified with 3 $\sigma$ significance. This result demonstrates a new method for precise, in-situ, and non-intrusive calibration of low-threshold experiments.