https://doi.org/10.1140/epja/s10050-025-01623-4
Regular Article - Experimental Physics
Measurement of the 40Ar(e,
) elastic scattering cross section with a novel gas-jet target
1
Institut für Kernphysik, Johannes Gutenberg-Universität, 55128, Mainz, Germany
2
Institut für Kernphysik, Universität Münster, 48149, Münster, Germany
3
Department of Physics and Astronomy, Center for Frontiers in Nuclear Science, Stony Brook University, 11794, New York, USA
4
Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
5
Laboratory for Nuclear Science, Massachusetts Institute of Technology, 02139, Cambridge, USA
6
Jožef Stefan Institute, 1000, Ljubljana, Slovenia
7
Faculty of Mathematics and Physics, University of Ljubljana, 1000, Ljubljana, Slovenia
8
Institute of Physics, University of Silesia in Katowice, 41-500, Chorzow, Poland
Received:
21
March
2025
Accepted:
17
June
2025
Published online:
3
July
2025
We report on a measurement of elastic electron scattering on argon performed with a novel cryogenic gas-jet target at the Mainz Microtron accelerator MAMI. The luminosity is estimated with the thermodynamical parameters of the target and by comparison to a calculation in distorted-wave Born approximation. The cross section, measured at new momentum transfers of 1.24 
and 1.55 is in agreement with previous experiments performed with a traditional high-pressure gas target, as well as with modern ab-initio calculations employing state-of-the-art nuclear forces from chiral effective field theory. The nearly background-free measurement highlights the optimal properties of the gas-jet target for elements heavier than hydrogen, enabling new applications in hadron and nuclear physics.
© The Author(s) 2025
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