Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2
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...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/60958 |
| _version_ | 1826194518014164992 |
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| author | Qian, X. Qiang, Yi Zhan, X. |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Qian, X. Qiang, Yi Zhan, X. |
| author_sort | Qian, X. |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T09:57:19Z |
| format | Article |
| id | mit-1721.1/60958 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:57:19Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/609582022-09-26T14:47:48Z Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 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] Qian, X. Qiang, Yi Zhan, X. Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Physics Qiang, Yi Zhan, X. 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. United States. Dept. of Energy National Science Foundation (U.S.) 2011-02-16T17:24:57Z 2011-02-16T17:24:57Z 2010-08 2010-02 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/60958 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 en_US http://dx.doi.org/10.1103/PhysRevLett.105.072001 Physical review letters 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. application/pdf American Physical Society APS |
| spellingShingle | Qian, X. Qiang, Yi Zhan, X. Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title | Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title_full | Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title_fullStr | Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title_full_unstemmed | Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title_short | Polarization Transfer in the 4He(e⃗,e′p⃗)3H Reaction at Q2=0.8 and 1.3 (GeV/c)2 |
| title_sort | polarization transfer in the 4he e e p 3h reaction at q2 0 8 and 1 3 gev c 2 |
| url | http://hdl.handle.net/1721.1/60958 |
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