Physics Letters B (Dec 2020)
Comparison of recoil polarization in the C12(e→,e′p→) process for protons extracted from s and p shells
- T. Kolar,
- S.J. Paul,
- T. Brecelj,
- P. Achenbach,
- R. Böhm,
- D. Bosnar,
- E. Cline,
- E.O. Cohen,
- M.O. Distler,
- A. Esser,
- R. Gilman,
- C. Giusti,
- M. Hoek,
- D. Izraeli,
- S. Kegel,
- Y. Kohl,
- I. Korover,
- J. Lichtenstadt,
- I. Mardor,
- H. Merkel,
- M. Mihovilovič,
- J. Müller,
- U. Müller,
- M. Olivenboim,
- E. Piasetzky,
- J. Pochodzalla,
- G. Ron,
- B.S. Schlimme,
- C. Sfienti,
- S. Širca,
- R. Spreckels,
- S. Štajner,
- S. Strauch,
- M. Thiel,
- A. Weber,
- I. Yaron
Affiliations
- T. Kolar
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia; Corresponding author.
- S.J. Paul
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- T. Brecelj
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- P. Achenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- R. Böhm
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- D. Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, HR-10000 Zagreb, Croatia
- E. Cline
- Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- E.O. Cohen
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- M.O. Distler
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- A. Esser
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- R. Gilman
- Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- C. Giusti
- Dipartimento di Fisica, Università degli Studi di Pavia, 27100 Pavia, Italy; Istituto Nazionale di Fisica Nucleare sezione di Pavia, 27100 Pavia, Italy
- M. Hoek
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- D. Izraeli
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- S. Kegel
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- Y. Kohl
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- I. Korover
- Department of Physics, NRCN, P.O. Box 9001, Beer-Sheva 84190, Israel; School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- J. Lichtenstadt
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- I. Mardor
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel; Soreq NRC, Yavne 81800, Israel
- H. Merkel
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- M. Mihovilovič
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia; Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany; Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
- J. Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- U. Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- M. Olivenboim
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- E. Piasetzky
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- J. Pochodzalla
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- G. Ron
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
- B.S. Schlimme
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- C. Sfienti
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- S. Širca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia; Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- R. Spreckels
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- S. Štajner
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- S. Strauch
- University of South Carolina, Columbia, SC 29208, USA
- M. Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- A. Weber
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- I. Yaron
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- Journal volume & issue
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Vol. 811
p. 135903
Abstract
We present the first measurements of the double ratio of the polarization-transfer components (Px′/Pz′)p/(Px′/Pz′)s for knock-out protons from the s and p shells in C12 measured by the C12(e→,e′p→) reaction in quasi-elastic kinematics. The data are compared to theoretical predictions in the relativistic distorted-wave impulse approximation. Our results show that the differences between s- and p-shell protons, observed when compared at the same initial momentum (missing momentum), largely disappear when the comparison is done at the same proton virtuality. We observe no difference in medium modifications between protons from the s and p shells with the same virtuality in spite of the large differences in the respective nuclear densities.
