Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2
Name
Paolone-2010-Polarization Transfe.pdf
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Checksum (MD5)
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Author(s)
Qian, X.
Qiang, Yi
Zhan, X.
Alternative Title
Polarization Transfer in the [superscript 4]He(e⃗,e′p⃗)[superscript 3]H Reaction at Q[superscript 2]=0.8 and 1.3 (GeV/c)[superscript 2]
Date Issued
August 2010
Journal
Physical review letters
Publisher
American Physical Society
Citation
Paolone, M. et al. tion “Polarization Transfer in the ^{4}He(e[over →],e^{′}p[over →])^{3}H Reaction at Q^{2}=0.8 and 1.3 (GeV/c)^{2}.” Physical Review Letters 105.7 (2010): n. pag. c2010 The American Physical Society
Version
Final published version
Abstract
Proton recoil polarization was measured in the quasielastic [superscript 4]He(e⃗,e′p⃗)[superscript 3]H reaction at Q [superscript 2]=0.8 and 1.3 (GeV/c)[superscript 2] with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the [superscript 1]H(e⃗,e′p⃗) 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.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.072001
