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Title: Polarization transfer in the {sup 4}He(e(pol), e'p(pol)) {sup 3}He reaction at Q{sup 2} = 0.8 and 1.3 GeV/c){sup 2}.

Abstract

Proton recoil polarization was measured in the quasielastic 4He(e(pol),e{prime}p(pol)){sup 3}H reaction at Q{sup 2}=0.8 and 1.3(GeV/c){sup 2} with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the {sup 1}H(e(pol),e{prime}p(pol)) 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:
; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF)
OSTI Identifier:
989073
Report Number(s):
ANL/PHY/JA-66386
Journal ID: 0031-9007; TRN: US1007007
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: Aug. 12, 2010
Country of Publication:
United States
Language:
ENGLISH
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCURACY; APPROXIMATIONS; CHARGE EXCHANGE; FINAL-STATE INTERACTIONS; FORM FACTORS; POLARIZATION; PROTONS

Citation Formats

Paolone, M, Malace, S P, Strauch, S, Albayrak, I, Arrington, J, Solvignon, P, E03-104 Collaboration, Physics, Univ. of South Carolina, Hampton Univ., and The E03-104 Collaboration. Polarization transfer in the {sup 4}He(e(pol), e'p(pol)) {sup 3}He reaction at Q{sup 2} = 0.8 and 1.3 GeV/c){sup 2}.. United States: N. p., 2010. Web. doi:10.1103/PhysRevLett.105.072001.
Paolone, M, Malace, S P, Strauch, S, Albayrak, I, Arrington, J, Solvignon, P, E03-104 Collaboration, Physics, Univ. of South Carolina, Hampton Univ., & The E03-104 Collaboration. Polarization transfer in the {sup 4}He(e(pol), e'p(pol)) {sup 3}He reaction at Q{sup 2} = 0.8 and 1.3 GeV/c){sup 2}.. United States. doi:10.1103/PhysRevLett.105.072001.
Paolone, M, Malace, S P, Strauch, S, Albayrak, I, Arrington, J, Solvignon, P, E03-104 Collaboration, Physics, Univ. of South Carolina, Hampton Univ., and The E03-104 Collaboration. Thu . "Polarization transfer in the {sup 4}He(e(pol), e'p(pol)) {sup 3}He reaction at Q{sup 2} = 0.8 and 1.3 GeV/c){sup 2}.". United States. doi:10.1103/PhysRevLett.105.072001.
@article{osti_989073,
title = {Polarization transfer in the {sup 4}He(e(pol), e'p(pol)) {sup 3}He reaction at Q{sup 2} = 0.8 and 1.3 GeV/c){sup 2}.},
author = {Paolone, M and Malace, S P and Strauch, S and Albayrak, I and Arrington, J and Solvignon, P and E03-104 Collaboration and Physics and Univ. of South Carolina and Hampton Univ. and The E03-104 Collaboration},
abstractNote = {Proton recoil polarization was measured in the quasielastic 4He(e(pol),e{prime}p(pol)){sup 3}H reaction at Q{sup 2}=0.8 and 1.3(GeV/c){sup 2} with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the {sup 1}H(e(pol),e{prime}p(pol)) 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 = Aug. 12, 2010,
volume = 105,
place = {United States},
year = {2010},
month = {8}
}

Works referenced in this record:

Nucleon electromagnetic form factors
journal, October 2007

  • Perdrisat, C. F.; Punjabi, V.; Vanderhaeghen, M.
  • Progress in Particle and Nuclear Physics, Vol. 59, Issue 2
  • DOI: 10.1016/j.ppnp.2007.05.001

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

  • Saito, K.; Tsushima, K.; Thomas, A. W.
  • Progress in Particle and Nuclear Physics, Vol. 58, Issue 1
  • DOI: 10.1016/j.ppnp.2005.07.003

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

  • Yakhshiev, U. T.; Meißner, U. -G.; Wirzba, A.
  • The European Physical Journal A, Vol. 16, Issue 4
  • DOI: 10.1140/epja/i2002-10121-x

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


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


    Works referencing / citing this record:

    Hadron Medium Modifications
    journal, January 2012