Study of the Λ/Σ⁰ electroproduction in the low-Q² region at JLab

¹ Department of Physics, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578 Japan
² Department of Physics, Graduate School of Science, The University of Tokyo, Hongo, Tokyo 113-0033 Japan
³ Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502 Japan
⁴ Department of Physics, Hampton University, Hampton, Virginia 23668, USA
⁵ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
⁶ Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
⁷ Department of Physics & Department of Applied Physics, University of Zagreb, HR-10000 Zagreb, Croatia
⁸ Physics and Astronomy Department, California State University, Los Angeles, California 90032, USA
⁹ Department of Physics, The College of William and Mary, Virginia 23185, USA
¹⁰ Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA
¹¹ Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185, Rome, Italy
¹² Department of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USA
¹³ Department of Physics, Florida International University, Miami, Florida 33199, USA
¹⁴ Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
¹⁵ National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
¹⁶ Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
¹⁷ Department of Physics, State University of New York, Stony Brook, New York 11794, USA
¹⁸ Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
¹⁹ Instituto Superiore di Sanità, 00161, Rome, Italy
²⁰ Department of Physics, Kent State University, Kent, Ohio 44242 USA
²¹ Department of Physics, Old Dominion University, Norfolk, Virginia 23529, USA
²² Department of Physics, University of New Hampshire, Durham, New Hampshire 03824, USA
²³ Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
²⁴ Department of Physics, Columbia University, New York, New York 10027, USA
²⁵ Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
²⁶ Sapienza University of Rome, I-00185, Rome, Italy
²⁷ Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
²⁸ Jožef Stefan Institute, Ljubljana, Slovenia
²⁹ Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany
³⁰ Department of Physics, Christopher Newport University, Newport News, Virginia 23606, USA
³¹ University of Education, Hue University, Hue City, Vietnam
³² Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
³³ División de Ciencias y Tecnologia, Universidad Ana G. Méndez, Recinto de Cupey, San Juan 00926, Puerto Rico
³⁴ Department of Physics & Astronomy, Virginia Military Institute, Lexington, Virginia 24450, USA
³⁵ Department of Physics, Syracuse University, New York, New York 10016, USA
³⁶ School of Physics & Astronomy, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK

^* e-mail: kazuki@lambda.phys.tohoku.ac.jp

Published online: 9 November 2022

Abstract

We performed an experiment using tritium and hydrogen cryogenic gas targets at Thomas Jefferson National Accelerator Facility (JLab) in 2018 (E12-17-003)[1, 2]. In this article, we discuss the Λ/Σ⁰ hyperon electroproduction from hydrogen target. Elementary Λ/Σ⁰ hyperon production processes are important not only for an absolute mass scale calibration in our experiment, but also for the study of the electroproduction mechanisms themselves. In this article, we reported the results of the differential cross section for the p(e, e’K⁺)Λ/Σ⁰ reaction at Q² ∼ 0.5 (GeV/c)².