Physics Letters B (Jun 2018)
Components of polarization-transfer to a bound proton in a deuteron measured by quasi-elastic electron scattering
- D. Izraeli,
- I. Yaron,
- B.S. Schlimme,
- P. Achenbach,
- H. Arenhövel,
- A. Ashkenazi,
- J. Beričič,
- R. Böhm,
- D. Bosnar,
- E.O. Cohen,
- M.O. Distler,
- A. Esser,
- I. Friščić,
- R. Gilman,
- I. Korover,
- J. Lichtenstadt,
- I. Mardor,
- H. Merkel,
- D.G. Middleton,
- M. Mihovilovič,
- U. Müller,
- M. Olivenboim,
- E. Piasetzky,
- J. Pochodzalla,
- G. Ron,
- M. Schoth,
- F. Schulz,
- C. Sfienti,
- S. Širca,
- S. Štajner,
- S. Strauch,
- M. Thiel,
- A. Tyukin,
- A. Weber
Affiliations
- D. Izraeli
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel; Corresponding author.
- I. Yaron
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- B.S. Schlimme
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- P. Achenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- H. Arenhövel
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- A. Ashkenazi
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
- J. Beričič
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- R. Böhm
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- D. Bosnar
- Department of Physics, University of Zagreb, HR-10002 Zagreb, Croatia
- 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
- I. Friščić
- Department of Physics, University of Zagreb, HR-10002 Zagreb, Croatia
- R. Gilman
- Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- I. Korover
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel; Department of Physics, NRCN, P.O. Box 9001, Beer-Sheva 84190, 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
- D.G. Middleton
- 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
- 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
- M. Schoth
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- F. Schulz
- 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
- 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. Tyukin
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- A. Weber
- Institut für Kernphysik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
- Journal volume & issue
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Vol. 781
pp. 107 – 111
Abstract
We report the first measurements of the transverse (Px and Py) and longitudinal (Pz) components of the polarization transfer to a bound proton in the deuteron via the H2(e→,e′p→) reaction, over a wide range of missing momentum. A precise determination of the electron beam polarization reduces the systematic uncertainties on the individual components to a level that enables a detailed comparison to a state-of-the-art calculation of the deuteron using free-proton electromagnetic form factors. We observe very good agreement between the measured and the calculated Px/Pz ratios, but deviations of the individual components. Our results cannot be explained by medium modified electromagnetic form factors. They point to an incomplete description of the nuclear reaction mechanism in the calculation.
