Polarization Transfer in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">H</mml:mi><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mn>4</mml:mn></mml:mmultiscripts><mml:mo stretchy="false">(</mml:mo><mml:mover accent="true"><mml:mi>e</mml:mi><mml:mo>→</mml:mo></mml:mover><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>→</mml:mo></mml:mover><mml:mo stretchy="false">)</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">H</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math>Reaction up to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>=</mml:mo><mml:mn>2.6</mml:mn><mml:mtext> </mml:mtext><mml:mo stretchy="false">(</mml:mo><mml:mi mathvariant="normal">G</mml:mi><mml:mi mathvariant="normal">e</mml:mi><mml:mi mathvariant="normal">V</mml:mi><mml:mo>/</mml:mo><mml:mi>c</mml:mi><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mn>2</mml:mn></mml:msup></mml:math>
S. StrauchRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USASonja DieterichRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAK. AniolCalifornia State University, Los Angeles, California 90032, USAJ. R. M. AnnandUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomO. K. BakerHampton University, Hampton, Virginia 23668, USAW. BertozziMassachusetts Institute of Technology, Cambridge, Massachusetts 02139, USAM. BoswellRandolph-Macon Woman’s College, Lynchburg, Virginia 24503, USAE. J. BrashUniversity of Regina, Regina, Saskatchewan, Canada S4S 0A2Z. ChaiMassachusetts Institute of Technology, Cambridge, Massachusetts 02139, USAJyh‐Ping ChenThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAM. E. ChristyHampton University, Hampton, Virginia 23668, USAE. ChudakovThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAA. CochranHampton University, Hampton, Virginia 23668, USAR. De LeoINFN, Sezione di Bari and University of Bari, I-70126, Bari, ItalyR. EntThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAMichael EpsteinCalifornia State University, Los Angeles, California 90032, USAJ. M. FinnCollege of William and Mary, Williamsburg, Virginia 23187, USAK. FissumUniversity of Lund, SE-221 00 Lund, SwedenT. A. ForestOld Dominion University, Norfolk, Virginia 23529, USAS. FrullaniINFN, Sezione Sanitá and Istituto Superiore di Sanitá, Laboratorio di Fisica, I-00161 Rome, ItalyF. GaribaldiINFN, Sezione Sanitá and Istituto Superiore di Sanitá, Laboratorio di Fisica, I-00161 Rome, ItalyA. GasparianHampton University, Hampton, Virginia 23668, USAO. GayouCollege of William and Mary, Williamsburg, Virginia 23187, USAS. GiladMassachusetts Institute of Technology, Cambridge, Massachusetts 02139, USAR. GilmanRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAC. GlashausserRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAJ. GómezThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAV. GorbenkoKharkov Institute of Physics and Technology, Kharkov 310108, UkraineP. GuèyeHampton University, Hampton, Virginia 23668, USAO. HansenThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAD. W. HiginbothamMassachusetts Institute of Technology, Cambridge, Massachusetts 02139, USABingcheng HuHampton University, Hampton, Virginia 23668, USAC. E. Hyde-WrightOld Dominion University, Norfolk, Virginia 23529, USAD. G. IrelandUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomC. JacksonHampton University, Hampton, Virginia 23668, USAC. W. de JagerThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAX. JiangRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USACatherine JonesHampton University, Hampton, Virginia 23668, USAM. JonesUniversity of Maryland, College Park, Maryland 20742, USAJ. D. KellieUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomJames J. KellyUniversity of Maryland, College Park, Maryland 20742, USAC. KeppelHampton University, Hampton, Virginia 23668, USAG. KumbartzkiRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAM. KussThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAJ. J. LeRoseThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAK. LivingstonUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomN. LiyanageThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAS. MalovRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAD. J. MargaziotisCalifornia State University, Los Angeles, California 90032, USAD. MeekinsFlorida State University, Tallahassee, Florida 32306, USAR. MichaelsThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAJ. H. MitchellThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAS. K. NandaThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAJ. NappaRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAC. F. PerdrisatCollege of William and Mary, Williamsburg, Virginia 23187, USAVina PunjabiNorfolk State University, Norfolk, Virginia 23504, USAR. D. RansomeRutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USAR. RochéFlorida State University, Tallahassee, Florida 32306, USAG. RosnerUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomM. RvachevMassachusetts Institute of Technology, Cambridge, Massachusetts 02139, USAF. SabatiéOld Dominion University, Norfolk, Virginia 23529, USAA. SahaThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USAA. SartyFlorida State University, Tallahassee, Florida 32306, USAJ. M. Udı́asUniversidad Complutense de Madrid, E-28040 Madrid, SpainP. E. UlmerOld Dominion University, Norfolk, Virginia 23529, USAG. M. UrciuoliINFN, Sezione Sanitá and Istituto Superiore di Sanitá, Laboratorio di Fisica, I-00161 Rome, ItalyJ. F. J. van den BrandVrije Universiteit, NL-1081 HV Amsterdam, The NetherlandsJ. R. VignoteUniversidad Complutense de Madrid, E-28040 Madrid, SpainD. P. WattsUniversity of Glasgow, Glasgow, G12 8QQ, Scotland, United KingdomL. B. WeinsteinOld Dominion University, Norfolk, Virginia 23529, USAK. WijesooriyaUniversity of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USAB. WojtsekhowskiThomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
2003lv
ABI
Аннотация
We have measured the proton recoil polarization in the $^{4}\mathrm{H}\mathrm{e}(\stackrel{\ensuremath{\rightarrow}}{e}\text{ },{e}^{\ensuremath{'}}\stackrel{\ensuremath{\rightarrow}}{p})^{4}\mathrm{H}$ reaction at ${Q}^{2}=0.5$, 1.0, 1.6, and $2.6\text{ }(\mathrm{G}\mathrm{e}\mathrm{V}/c{)}^{2}$. The measured ratio of polarization transfer coefficients differs from a fully relativistic calculation, favoring the inclusion of a medium modification of the proton form factors predicted by a quark-meson coupling model. In addition, the measured induced polarizations agree reasonably well with the fully relativistic calculation indicating that the treatment of final-state interactions is under control.
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