Measurements of the elastic electromagnetic form factor ratio μpGEp/GMp via polarization transfer

Gayou, O.; Wijesooriya, K.; Afanasev, A.; Amarian, M.; Aniol, K.; Becher, S.; Benslama, K.; Bimbot, L.; Bosted, P.; Brash, E.; Calarco, J.; Chai, Z.; Chang, C. C.; Chang, T.; Chen, J. P.; Choi, S.; Chudakov, E.; Churchwell, S.; Crovelli, D.; Dieterich, S.; Dumalski, S.; Dutta, D.; Epstein, M.; Fissum, K.; Fox, B.; Frullani, S.; Gao, H.; Gao, J.; Garibaldi, F.; Gilman, R.; Glamazdin, S.; Glashausser, C.; Gomez, J.; Gorbenko, V.; Hansen, O.; Holt, R. J.; Hovdebo, J.; Huber, G. M.; de Jager, C. W.; Jiang, X.; Jones, C.; Jones, M. K.; Kelly, J.; Kinney, E.; Kooijman, E.; Kumbartzki, G.; Kuss, M.; LeRose, J.; Liang, M.; Lindgren, R.; Liyanage, N.; Malov, S.; Margaziotis, D. J.; Markowitz, P.; McCormick, K.; Meekins, D.; Meziani, Z. -E.; Michaels, R.; Mitchell, J.; Morand, L.; Perdrisat, C. F.; Pomatsalyuk, R.; Punjabi, V.; Ransome, R. D.; Roche, R.; Rvachev, M.; Saha, A.; Sarty, A.; Schulte, E. C.; Simon, D.; Strauch, S.; Suleiman, R.; Todor, L.; Ulmer, P. E.; Urciuoli, G. M.; Wojtsekhowski, B.; Xiong, F.; Xu, W.

doi:10.1103/PhysRevC.64.038202

Measurements of the elastic electromagnetic form factor ratio $μ_{p} G_{Ep} {/ G}_{Mp}$ via polarization transfer

Journal Article · Wed Aug 01 04:00:00 EDT 2001 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.64.038202· OSTI ID:40277142

Gayou, O.; Wijesooriya, K.; Afanasev, A.; Amarian, M.; Aniol, K.; Becher, S.; Benslama, K.; Bimbot, L.; Bosted, P.; Brash, E.; Calarco, J.; Chai, Z.; Chang, C. C.; Chang, T.; Chen, J. P.; Choi, S.; Chudakov, E.; Churchwell, S.; Crovelli, D.; Dieterich, S. more »

We present measurements of the ratio of the proton elastic electromagnetic form factors, {mu}{sub p}G{sub Ep}/G{sub Mp}. The Jefferson Lab Hall A Focal Plane Polarimeter was used to determine the longitudinal and transverse components of the recoil proton polarization in ep elastic scattering; the ratio of these polarization components is proportional to the ratio of the two form factors. These data reproduce the observation of Jones [Phys. Rev. Lett. 84, 1398 (2000)], that the form factor ratio decreases significantly from unity above Q{sup 2}=1 GeV{sup 2}.

Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-84ER40150

OSTI ID:: 40277142

Journal Information:: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 64; ISSN 0556-2813; ISSN PRVCAN

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

References (20)

Scaling law for the electromagnetic form factors of the proton Lu, Ding H.; Yang, Shin Nan; Thomas, Anthony W. Journal of Physics G: Nuclear and Particle Physics, Vol. 26, Issue 6 https://doi.org/10.1088/0954-3899/26/6/101	journal	May 2000
Measurements of the electric and magnetic form factors of the proton from Q 2 =1.75 to 8.83 (GeV/ c ) 2 Andivahis, L.; Bosted, P. E.; Lung, A. Physical Review D, Vol. 50, Issue 9 https://doi.org/10.1103/PhysRevD.50.5491	journal	November 1994
Proton form factors in the hypercentral constituent quark model De Sanctis, M.; Giannini, M. M.; Repetto, L. Physical Review C, Vol. 62, Issue 2 https://doi.org/10.1103/PhysRevC.62.025208	journal	July 2000
Measurements of the proton elastic form factors for 1 ≤ Q 2 ≤ 3 ( G e V / c ) 2 at SLAC Walker, R. C.; Filippone, B. W.; Jourdan, J. Physical Review D, Vol. 49, Issue 11 https://doi.org/10.1103/PhysRevD.49.5671	journal	June 1994
Erratum: Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron [Phys. Rev. Lett. 80, 452 (1998)] Milbrath, B. D.; McIntyre, J. I.; Armstrong, C. S. Physical Review Letters, Vol. 82, Issue 10 https://doi.org/10.1103/PhysRevLett.82.2221	journal	March 1999
SU(6) breaking effects in the nucleon elastic electromagnetic form factors Cardarelli, Fabio; Simula, Silvano Physical Review C, Vol. 62, Issue 6 https://doi.org/10.1103/PhysRevC.62.065201	journal	November 2000
G E p / G M p Ratio by Polarization Transfer in e → p → e p → Jones, M. K.; Aniol, K. A.; Baker, F. T. Physical Review Letters, Vol. 84, Issue 7 https://doi.org/10.1103/PhysRevLett.84.1398	journal	February 2000
Polarization Measurements in High-Energy Deuteron Photodisintegration Wijesooriya, K.; Afanasev, A.; Amarian, M. Physical Review Letters, Vol. 86, Issue 14 https://doi.org/10.1103/PhysRevLett.86.2975	journal	April 2001
Electro-magnetic nucleon form factors and their spectral functions in soliton models Holzwarth, G. Zeitschrift für Physik A: Hadrons and Nuclei, Vol. 356, Issue 1 https://doi.org/10.1007/BF02769237	journal	December 1996
Polarization transfer in the 4HeH reaction Dieterich, S.; Bartsch, P.; Baumann, D. Physics Letters B, Vol. 500, Issue 1-2 https://doi.org/10.1016/S0370-2693(01)00052-1	journal	February 2001
Empirical fit to the nucleon electromagnetic form factors Bosted, P. E. Physical Review C, Vol. 51, Issue 1 https://doi.org/10.1103/PhysRevC.51.409	journal	January 1995
Electromagnetic form factors of the proton at squared four-momentum transfers between 10 and 50 fm−2 Berger, Ch.; Burkert, V.; Knop, G. Physics Letters B, Vol. 35, Issue 1 https://doi.org/10.1016/0370-2693(71)90448-5	journal	April 1971
Measurement of the ratio of the proton form factors, GE/GM, at high momentum transfers and the question of scaling Litt, J.; Buschhorn, G.; Coward, D. H. Physics Letters B, Vol. 31, Issue 1 https://doi.org/10.1016/0370-2693(70)90015-8	journal	January 1970
Role of color neutrality in nuclear physics: Modifications of nucleonic wave functions Frank, M. R.; Jennings, B. K.; Miller, G. A. Physical Review C, Vol. 54, Issue 2 https://doi.org/10.1103/PhysRevC.54.920	journal	August 1996
High Energy Elastic Scattering of Electrons on Protons Rosenbluth, M. N. Physical Review, Vol. 79, Issue 4 https://doi.org/10.1103/PhysRev.79.615	journal	August 1950
Backward-Angle Electron-Proton Elastic Scattering and Proton Electromagnetic Form Factors Price, L. E.; Dunning, J. R.; Goitein, M. Physical Review D, Vol. 4, Issue 1 https://doi.org/10.1103/PhysRevD.4.45	journal	July 1971
Measurement of proton and neutron electromagnetic form factors at squared four-momentum transfers up to 3 (GeV/c)2 Bartel, W.; Büsser, F. -W.; Dix, W. -R. Nuclear Physics B, Vol. 58, Issue 2 https://doi.org/10.1016/0550-3213(73)90594-4	journal	July 1973
Selected nucleon form factors and a composite scalar diquark Bloch, J. C. R.; Roberts, C. D.; Schmidt, S. M. Physical Review C, Vol. 61, Issue 6 https://doi.org/10.1103/PhysRevC.61.065207	journal	May 2000
Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron Milbrath, B. D.; McIntyre, J. I.; Armstrong, C. S. Physical Review Letters, Vol. 80, Issue 3 https://doi.org/10.1103/PhysRevLett.80.452	journal	January 1998
Polarization transfer in elastic electron scattering from nucleons and deuterons Arnold, Raymond G.; Carlson, Carl E.; Gross, Franz Physical Review C, Vol. 23, Issue 1 https://doi.org/10.1103/PhysRevC.23.363	journal	January 1981

Similar Records

Measurements of the elastic electromagnetic form factor ratio

μ_{p} G_{Ep} {/ G}_{Mp}

via polarization transfer

Journal Article · Wed Aug 01 00:00:00 EDT 2001 · Physical Review. C, Nuclear Physics · OSTI ID:839041

G_{E_{p}} / G_{M_{p}}

Ratio by Polarization Transfer in

\vec{e} p \to e \vec{p}

Journal Article · Mon Jan 31 23:00:00 EST 2000 · Physical Review Letters · OSTI ID:801496

Measurement of the proton's G{sub Ep}/G{sub Mp} ratio to Q{sup 2} = 5.6 GeV{sup 2} at Jlab

Conference · Sun Mar 31 23:00:00 EST 2002 · OSTI ID:839085

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELASTIC SCATTERING
ELECTROMAGNETIC FORM FACTORS
FORM FACTORS
POLARIMETERS
POLARIZATION
PROTONS

Measurements of the elastic electromagnetic form factor ratio μp GEp /GMp via polarization transfer

Citation Formats

References (20)

Similar Records

Related Subjects

Measurements of the elastic electromagnetic form factor ratio $μ_{p} G_{Ep} {/ G}_{Mp}$ via polarization transfer