학술논문
Search for inelastic dark matter-nucleus scattering with the PICO-60 CF$_{3}$I and C$_{3}$F$_{8}$ bubble chambers
Document Type
Working Paper
Author
Adams, E.; Ali, B.; Arnquist, I. J.; Baxter, D.; Behnke, E.; Bressler, M.; Broerman, B.; Chen, C. J.; Clark, K.; Collar, J. I.; Cooper, P. S.; Cripe, C.; Crisler, M.; Dahl, C. E.; Das, M.; Fallows, S.; Farine, J.; Filgas, R.; Viltres, A. García; Giroux, G.; Harris, O.; Hillier, T.; Hoppe, E. W.; Jackson, C. M.; Jin, M.; Krauss, C. B.; Kumar, V.; Laurin, M.; Lawson, I.; Leblanc, A.; Leng, H.; Levine, I.; Licciardi, C.; Lippincott, W. H.; Mitra, P.; Monette, V.; Moore, C.; Neilson, R.; Noble, A. J.; Nozard, H.; Pal, S.; Piro, M. -C.; Plante, A.; Priya, S.; Rethmeier, C.; Robinson, A. E.; Savoie, J.; Sonnenschein, A.; Starinski, N.; Štekl, I.; Tiwari, D.; Vázquez-Jáuregui, E.; Wichoski, U.; Zacek, V.; Zhang, J.
Source
Subject
Language
Abstract
PICO bubble chambers have exceptional sensitivity to inelastic dark matter-nucleus interactions due to a combination of their extended nuclear recoil energy detection window from a few keV to $O$(100 keV) or more and the use of iodine as a heavy target. Inelastic dark matter-nucleus scattering is interesting for studying the properties of dark matter, where many theoretical scenarios have been developed. This study reports the results of a search for dark matter inelastic scattering with the PICO-60 bubble chambers. The analysis reported here comprises physics runs from PICO-60 bubble chambers using CF$_{3}$I and C$_{3}$F$_{8}$. The CF$_{3}$I run consisted of 36.8 kg of CF$_{3}$I reaching an exposure of 3415 kg-day operating at thermodynamic thresholds between 7 and 20 keV. The C$_{3}$F$_{8}$ runs consisted of 52 kg of C$_{3}$F$_{8}$ reaching exposures of 1404 kg-day and 1167 kg-day running at thermodynamic thresholds of 2.45 keV and 3.29 keV, respectively. The analysis disfavors various scenarios, in a wide region of parameter space, that provide a feasible explanation of the signal observed by DAMA, assuming an inelastic interaction, considering that the PICO CF$_{3}$I bubble chamber used iodine as the target material.
Comment: 7 pages, 3 figures
Comment: 7 pages, 3 figures