Polarization transfer in the 4He(e→,e'p→)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2
Abstract
Here, proton recoil polarization was measured in the quasielastic 4He(e→,e'p→)3H reaction at Q2 = 0.8 (GeV/c)2 and 1.3 (GeV/c)2 with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e→,e'p→) reaction, contradicting a relativistic distorted-wave approximation, and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton.
- Authors:
-
- Univ. of South Carolina, Columbia, SC (United States). et al.
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Org.:
- Jefferson Lab E03-104 Collaboration
- OSTI Identifier:
- 985221
- Report Number(s):
- JLAB-PHY-10-1127; DOE/OR/23177-3685
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1006095
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 7; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; CHARGE EXCHANGE; FINAL-STATE INTERACTIONS; FORM FACTORS; POLARIZATION; PROTONS
Citation Formats
Michael Paolone, and Malace, Simona P. Polarization transfer in the 4He(e→,e'p→)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2. United States: N. p., 2010.
Web. doi:10.1103/PhysRevLett.105.072001.
Michael Paolone, & Malace, Simona P. Polarization transfer in the 4He(e→,e'p→)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2. United States. https://doi.org/10.1103/PhysRevLett.105.072001
Michael Paolone, and Malace, Simona P. Thu .
"Polarization transfer in the 4He(e→,e'p→)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2". United States. https://doi.org/10.1103/PhysRevLett.105.072001. https://www.osti.gov/servlets/purl/985221.
@article{osti_985221,
title = {Polarization transfer in the 4He(e→,e'p→)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2},
author = {Michael Paolone and Malace, Simona P.},
abstractNote = {Here, proton recoil polarization was measured in the quasielastic 4He(e→,e'p→)3H reaction at Q2 = 0.8 (GeV/c)2 and 1.3 (GeV/c)2 with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e→,e'p→) reaction, contradicting a relativistic distorted-wave approximation, and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton.},
doi = {10.1103/PhysRevLett.105.072001},
journal = {Physical Review Letters},
number = 7,
volume = 105,
place = {United States},
year = {Thu Aug 12 00:00:00 EDT 2010},
month = {Thu Aug 12 00:00:00 EDT 2010}
}
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