Role of mesons in the electromagnetic form factors of the nucleon

C. Crawford, T. Akdogan, Ricardo Alarcon, W. Bertozzi, E. Booth, T. Botto, J. R. Calarco, B. Clasie, A. de Grush, T. W. Donnelly, K. Dow, M. Farkhondeh, R. Fatemi, O. Filoti, W. Franklin, H. Gao, E. Geis, S. Gilad, D. Hasell, P. Karpius & 27 others M. Kohl, H. Kolster, T. Lee, E. Lomon, A. Maschinot, J. Matthews, K. McIlhany, N. Meitanis, R. Milner, J. Rapaport, R. Redwine, J. Seely, A. Shinozaki, A. Sindile, S. Širca, E. Six, T. Smith, B. Tonguc, C. Tschalaer, E. Tsentalovich, W. Turchinetz, Y. Xiao, W. Xu, C. Zhang, Z. Zhou, V. Ziskin, T. Zwart

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q2 behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q2 or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as "charge distributions," nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.

Original languageEnglish (US)
Article number045211
JournalPhysical Review C - Nuclear Physics
Volume82
Issue number4
DOIs
StatePublished - 2010

Fingerprint

form factors
mesons
electromagnetism
vector dominance model
continuums
vector mesons
ingredients
charge distribution
quantum chromodynamics
dipoles
momentum

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Crawford, C., Akdogan, T., Alarcon, R., Bertozzi, W., Booth, E., Botto, T., ... Zwart, T. (2010). Role of mesons in the electromagnetic form factors of the nucleon. Physical Review C - Nuclear Physics, 82(4), [045211]. https://doi.org/10.1103/PhysRevC.82.045211

Role of mesons in the electromagnetic form factors of the nucleon. / Crawford, C.; Akdogan, T.; Alarcon, Ricardo; Bertozzi, W.; Booth, E.; Botto, T.; Calarco, J. R.; Clasie, B.; de Grush, A.; Donnelly, T. W.; Dow, K.; Farkhondeh, M.; Fatemi, R.; Filoti, O.; Franklin, W.; Gao, H.; Geis, E.; Gilad, S.; Hasell, D.; Karpius, P.; Kohl, M.; Kolster, H.; Lee, T.; Lomon, E.; Maschinot, A.; Matthews, J.; McIlhany, K.; Meitanis, N.; Milner, R.; Rapaport, J.; Redwine, R.; Seely, J.; Shinozaki, A.; Sindile, A.; Širca, S.; Six, E.; Smith, T.; Tonguc, B.; Tschalaer, C.; Tsentalovich, E.; Turchinetz, W.; Xiao, Y.; Xu, W.; Zhang, C.; Zhou, Z.; Ziskin, V.; Zwart, T.

In: Physical Review C - Nuclear Physics, Vol. 82, No. 4, 045211, 2010.

Research output: Contribution to journalArticle

Crawford, C, Akdogan, T, Alarcon, R, Bertozzi, W, Booth, E, Botto, T, Calarco, JR, Clasie, B, de Grush, A, Donnelly, TW, Dow, K, Farkhondeh, M, Fatemi, R, Filoti, O, Franklin, W, Gao, H, Geis, E, Gilad, S, Hasell, D, Karpius, P, Kohl, M, Kolster, H, Lee, T, Lomon, E, Maschinot, A, Matthews, J, McIlhany, K, Meitanis, N, Milner, R, Rapaport, J, Redwine, R, Seely, J, Shinozaki, A, Sindile, A, Širca, S, Six, E, Smith, T, Tonguc, B, Tschalaer, C, Tsentalovich, E, Turchinetz, W, Xiao, Y, Xu, W, Zhang, C, Zhou, Z, Ziskin, V & Zwart, T 2010, 'Role of mesons in the electromagnetic form factors of the nucleon', Physical Review C - Nuclear Physics, vol. 82, no. 4, 045211. https://doi.org/10.1103/PhysRevC.82.045211
Crawford, C. ; Akdogan, T. ; Alarcon, Ricardo ; Bertozzi, W. ; Booth, E. ; Botto, T. ; Calarco, J. R. ; Clasie, B. ; de Grush, A. ; Donnelly, T. W. ; Dow, K. ; Farkhondeh, M. ; Fatemi, R. ; Filoti, O. ; Franklin, W. ; Gao, H. ; Geis, E. ; Gilad, S. ; Hasell, D. ; Karpius, P. ; Kohl, M. ; Kolster, H. ; Lee, T. ; Lomon, E. ; Maschinot, A. ; Matthews, J. ; McIlhany, K. ; Meitanis, N. ; Milner, R. ; Rapaport, J. ; Redwine, R. ; Seely, J. ; Shinozaki, A. ; Sindile, A. ; Širca, S. ; Six, E. ; Smith, T. ; Tonguc, B. ; Tschalaer, C. ; Tsentalovich, E. ; Turchinetz, W. ; Xiao, Y. ; Xu, W. ; Zhang, C. ; Zhou, Z. ; Ziskin, V. ; Zwart, T. / Role of mesons in the electromagnetic form factors of the nucleon. In: Physical Review C - Nuclear Physics. 2010 ; Vol. 82, No. 4.
@article{808bcab36b054be497258a013fd8f4fa,
title = "Role of mesons in the electromagnetic form factors of the nucleon",
abstract = "The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q2 behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q2 or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as {"}charge distributions,{"} nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.",
author = "C. Crawford and T. Akdogan and Ricardo Alarcon and W. Bertozzi and E. Booth and T. Botto and Calarco, {J. R.} and B. Clasie and {de Grush}, A. and Donnelly, {T. W.} and K. Dow and M. Farkhondeh and R. Fatemi and O. Filoti and W. Franklin and H. Gao and E. Geis and S. Gilad and D. Hasell and P. Karpius and M. Kohl and H. Kolster and T. Lee and E. Lomon and A. Maschinot and J. Matthews and K. McIlhany and N. Meitanis and R. Milner and J. Rapaport and R. Redwine and J. Seely and A. Shinozaki and A. Sindile and S. Širca and E. Six and T. Smith and B. Tonguc and C. Tschalaer and E. Tsentalovich and W. Turchinetz and Y. Xiao and W. Xu and C. Zhang and Z. Zhou and V. Ziskin and T. Zwart",
year = "2010",
doi = "10.1103/PhysRevC.82.045211",
language = "English (US)",
volume = "82",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "4",

}

TY - JOUR

T1 - Role of mesons in the electromagnetic form factors of the nucleon

AU - Crawford, C.

AU - Akdogan, T.

AU - Alarcon, Ricardo

AU - Bertozzi, W.

AU - Booth, E.

AU - Botto, T.

AU - Calarco, J. R.

AU - Clasie, B.

AU - de Grush, A.

AU - Donnelly, T. W.

AU - Dow, K.

AU - Farkhondeh, M.

AU - Fatemi, R.

AU - Filoti, O.

AU - Franklin, W.

AU - Gao, H.

AU - Geis, E.

AU - Gilad, S.

AU - Hasell, D.

AU - Karpius, P.

AU - Kohl, M.

AU - Kolster, H.

AU - Lee, T.

AU - Lomon, E.

AU - Maschinot, A.

AU - Matthews, J.

AU - McIlhany, K.

AU - Meitanis, N.

AU - Milner, R.

AU - Rapaport, J.

AU - Redwine, R.

AU - Seely, J.

AU - Shinozaki, A.

AU - Sindile, A.

AU - Širca, S.

AU - Six, E.

AU - Smith, T.

AU - Tonguc, B.

AU - Tschalaer, C.

AU - Tsentalovich, E.

AU - Turchinetz, W.

AU - Xiao, Y.

AU - Xu, W.

AU - Zhang, C.

AU - Zhou, Z.

AU - Ziskin, V.

AU - Zwart, T.

PY - 2010

Y1 - 2010

N2 - The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q2 behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q2 or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as "charge distributions," nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.

AB - The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q2 behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q2 or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as "charge distributions," nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.

UR - http://www.scopus.com/inward/record.url?scp=78649345931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649345931&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.82.045211

DO - 10.1103/PhysRevC.82.045211

M3 - Article

VL - 82

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 4

M1 - 045211

ER -