Sep 5 – 10, 2021
Europe/Lisbon timezone

First results from the ARTIE experiment

Sep 5, 2021, 3:40 PM


Talk Nuclear and particle astrophysics Nuclear and particle astrophysics


Luca Pagani (UC Davis)


A measurement of the transmission coefficient for neutrons through a thick ($\sim 3$\,atoms/b) liquid natural argon target in the energy range $30$-$70$\,keV was performed by the Argon Resonance Transmission Interaction Experiment (ARTIE) using a time of flight neutron beam at Los Alamos National Laboratory.
In this energy range theory predicts an anti-resonance in the $^{40}$Ar cross section near $57$\,keV, but the existing data, coming from an experiment performed in the 90s (Winters. et al.), does not support this.
This discrepancy gives rise to significant uncertainty in the penetration depth of neutrons through liquid argon, an important parameter for next generation neutrino and dark matter experiments.
In this talk, the first results from the ARTIE experiment will be presented.
The ARTIE measurement of the total cross section as a function of energy confirms the existence of the anti-resonance near $57$\,keV, but not as deep as the theory prediction.

Primary author

Luca Pagani (UC Davis)


Prof. Robert Svoboda (UC Davis) Prof. Emilija Pantic (UC Davis) Prof. Michael Mulhearn (UC Davis) Prof. Jingbo Wang (South Dakota School of Mines and Technology) Dr Sofia Andriga (LIP) Dr John Ullmann (LANL) Mr Tyler Erjavec (UC Davis) Mr Yashwanth Bezawada (UC Davis) Dr Leon Pickard (UC Davis) Ms Julie He (UC Davis) Mr Junying Huang (UC Davis)

Presentation materials