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arxiv: 2208.13689 · v1 · pith:6LEOH6AFnew · submitted 2022-08-29 · ⚛️ nucl-ex

Low-Q² elastic electron-proton scattering using a gas jet target

Y. Wang , J. C. Bernauer , B. S. Schlimme , P. Achenbach , S. Aulenbacher , M. Ball , M. Biroth , D. Bonaventura
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D. Bosnar P. Brand S. Caiazza M. Christmann E. Cline A. Denig M.O. Distler L. Doria P. Eckert A. Esser I. Friscic S. Gagneur J. Geimer S. Grieser P. Gulker P. Herrmann M. Hoek S. Kegel J. Kelsey P. Klag A. Khoukaz M. Kohl T. Kolar M. Lau{\ss} L. Le{\ss}mann M. Littich S. Lunkenheimer J. Marekovic D. Markus M. Mauch H. Merkel M. Mihovilovic R.G. Milner J. Muller U. Muller T. Petrovic J. Pochodzalla J. Rausch J. Schlaadt H. Schurg C. Sfienti S. Sirca R. Spreckels S. Stengel Y. Stottinger C. Szyszka M. Thiel S. Vestrick C. Vidal
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classification ⚛️ nucl-ex
keywords targetscatteringelasticelectron-protonexperimentlow-collectedconsistent
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In this paper, we describe an experiment measuring low-$Q^2$ elastic electron-proton scattering using a newly developed cryogenic supersonic gas jet target in the A1 three-spectrometer facility at the Mainz Microtron. We measured the proton electric form factor within the four-momentum transfer range of $0.01\le Q^2 \le 0.045(\text{GeV/c})^2$. The experiment showed consistent results with the existing measurements. The data we collected demonstrated the feasibility of the gas jet target and the potential of future scattering experiments using high-resolution spectrometers with this gas jet target.

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