skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Polarization transfer in the 4He(e,e'p)3H reaction at Q2 = 0.8 and 1.3 (GeV/c)2

Journal Article · · Physical Review Letters
 [1]
  1. Univ. of South Carolina, Columbia, SC (United States). et al.

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.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
Jefferson Lab E03-104 Collaboration
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
985221
Report Number(s):
JLAB-PHY-10-1127; DOE/OR/23177-3685; PRLTAO; TRN: US1006095
Journal Information:
Physical Review Letters, Vol. 105, Issue 7; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 75 works
Citation information provided by
Web of Science

References (33)

Nucleon electromagnetic form factors journal October 2007
Proton elastic form factor ratios to Q 2 = 3.5 GeV 2 by polarization transfer journal May 2005
Measurements of the elastic electromagnetic form factor ratio μ p G Ep / G Mp via polarization transfer journal August 2001
Measurement of the Proton’s Electric to Magnetic Form Factor Ratio from H 1 ( e , e p ) journal January 2007
Measurements of the Proton Elastic-Form-Factor Ratio μ p G E p / G M p at Low Momentum Transfer journal November 2007
In-medium electron-nucleon scattering journal January 1998
Nucleon and hadron structure changes in the nuclear medium and the impact on observables journal January 2007
High momentum transfer R T , L inclusive response functions for He 3 , 4 journal July 1992
Role of color neutrality in nuclear physics: Modifications of nucleonic wave functions journal August 1996
Electromagnetic form factors of bound nucleons revisited journal April 2003
Chiral solitons in nuclei: Electromagnetic form factors journal December 2004
Medium modifications of nucleon electromagnetic form factors journal November 2005
Dependence of the wave function of a bound nucleon on its momentum and the EMC effect journal November 2007
Polarization Transfer in H 4 e ( e , e p ) H 3 : Is the Ratio G E p / G M p Modified in the Nuclear Medium? journal February 2005
New Measurements of the European Muon Collaboration Effect in Very Light Nuclei journal November 2009
A set of efficient estimators for polarization measurements journal December 1979
Radiative correction to the transferred polarization in elastic electron-proton scattering journal December 2001
Two-photon exchange in elastic electron-nucleon scattering journal September 2005
Quasielastic Scattering from Relativistic Bound Nucleons: Transverse-Longitudinal Response journal December 1999
Relativistic nuclear structure effects in ( e , e p ) journal August 2000
High-Precision Studies of the H 3 e ( e , e p ) Reaction at the Quasielastic Peak journal September 1999
Off-shell electron-nucleon cross sections journal January 1983
Impulse approximation NN amplitudes for proton-nucleus interactions journal May 1983
Relativistic Love-Franey model: Covariant representation of the NN interaction for N-nucleus scattering journal April 1985
Polarization transfer in the 4HeH reaction journal February 2001
Polarization Transfer in the H e 4 ( e , e p ) H 3 Reaction up to Q 2 = 2.6     ( G e V / c ) 2 journal July 2003
On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect text January 2007
Radiative Correction to the Transferred Polarization in Elastic Electron-Proton Scattering text January 2000
Nucleon and hadron structure changes in the nuclear medium and impact on observables text January 2005
Relativistic nuclear structure effects in (e,e' vec{p}) text January 2000
Electromagnetic form factors of bound nucleons revisited text January 2002
Two-photon exchange in elastic electron-nucleon scattering text January 2005
The Role of Color Neutrality in Nuclear Physics--Modifications of Nucleonic Wave Functions text January 1995

Cited By (17)

Two-Photon Exchange: Future Experimental Prospects journal July 2018
Hadron Medium Modifications journal January 2012
Transition between nuclear and quark–gluon descriptions of hadrons and light nuclei journal July 2012
Octet baryon electromagnetic form factor double ratios ( G E * / G M * ) / ( G E / G M ) in a nuclear medium journal July 2019
The structure of the nucleon: Elastic electromagnetic form factors journal July 2015
Nucleon form factors, generalized parton distributions and quark angular momentum journal April 2013
Border and skewness functions from a leading order fit to DVCS data journal November 2018
Electromagnetic and axial-vector form factors of the quarks and nucleon journal November 2017
Proton Charge Radius from Electron Scattering journal December 2017
Hard two-photon contribution to elastic lepton-proton scattering determined by the OLYMPUS experiment journal February 2018
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering Determined by the OLYMPUS Experiment text January 2016
A light front quark-diquark model for the nucleons text January 2016
Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering: Determined by the OLYMPUS Experiment text January 2016
Nucleon-Nucleon Correlations, Short-lived Excitations, and the Quarks Within text January 2016
Nucleon form factors in dispersively improved Chiral Effective Field Theory II: Electromagnetic form factors text January 2017
Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon text January 2017
Electromagnetic structure of nucleon and Roper in soft-wall AdS/QCD text January 2017