Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance

Aznauryan, Inna G.; Burkert, Volker D.

doi:10.1103/PhysRevC.92.015203

Title: Extracting meson-baryon contributions to the electroexcitation of the N (1675)^{^-5}/₂ nucleon resonance

Abstract

We report on the determination of the electrocouplings for the transition from the proton to the N (1675)^{^-5}/₂ resonance state using recent differential cross section data on ep → eπ⁺n by the CLAS collaboration at 1.8 ≤ Q² < 4.5GeV². The data have been analyzed using two different approaches, the unitary isobar model and fixed-t dispersion relations. The extracted γ*p → N (1675)^{^-5}/₂ helicity amplitudes show considerable coupling through the A^P_1/2 amplitude, that is significantly larger than predicted three-quark contribution to this amplitude. The amplitude A^P_3/2 is much smaller. Both results are consistent with the predicted sizes of the meson-baryon contributions at Q² ≥ 1.8 GeV² from the dynamical coupled-channel model.

Authors:

Aznauryan, Inna G. ^[1]; Burkert, Volker D. ^[2]

Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Yerevan Physics Institute, Yerevan, (Armenia)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Publication Date:: Wed Jul 01 00:00:00 EDT 2015

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1192846

Alternate Identifier(s):: OSTI ID: 1198647

Report Number(s):: JLAB-PHY-14-1990; DOE/OR/23177-3251; arXiv:1412.1296
Journal ID: ISSN 0556-2813; PRVCAN

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Aznauryan, Inna G., and Burkert, Volker D. Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevC.92.015203.

Copy to clipboard


                    Aznauryan, Inna G., & Burkert, Volker D. Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance.  United States.  https://doi.org/10.1103/PhysRevC.92.015203

Copy to clipboard


                    Aznauryan, Inna G., and Burkert, Volker D. Wed .  
"Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance".  United States.  https://doi.org/10.1103/PhysRevC.92.015203.  https://www.osti.gov/servlets/purl/1192846.

Copy to clipboard


                    
@article{osti_1192846,

  title        = {Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance},

  author       = {Aznauryan, Inna G. and Burkert, Volker D.},

  abstractNote = {We report on the determination of the electrocouplings for the transition from the proton to the N (1675)-5/2 resonance state using recent differential cross section data on ep → eπ+n by the CLAS collaboration at 1.8 ≤ Q² < 4.5GeV². The data have been analyzed using two different approaches, the unitary isobar model and fixed-t dispersion relations. The extracted γ*p → N (1675)-5/2 helicity amplitudes show considerable coupling through the AP1/2 amplitude, that is significantly larger than predicted three-quark contribution to this amplitude. The amplitude AP3/2 is much smaller. Both results are consistent with the predicted sizes of the meson-baryon contributions at Q² ≥ 1.8 GeV² from the dynamical coupled-channel model.},

  doi          = {10.1103/PhysRevC.92.015203},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 1,

  volume       = 92,

  place        = {United States},

  year         = {Wed Jul 01 00:00:00 EDT 2015},

  month        = {Wed Jul 01 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/PhysRevC.92.015203

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 13 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

A schematic model of baryons and mesons
journal, February 1964

Gell-Mann, M.
Physics Letters, Vol. 8, Issue 3
DOI: 10.1016/S0031-9163(64)92001-3

Single pion photoproduction in the quark model
journal, October 1969

Copley, L. A.; Karl, G.; Obryk, E.
Nuclear Physics B, Vol. 13, Issue 2
DOI: 10.1016/0550-3213(69)90237-5

Electromagnetic Meson Production in the Nucleon Resonance Region
journal, December 2004

Burkert, V. D.; Lee, T. -S. H.
International Journal of Modern Physics E, Vol. 13, Issue 06
DOI: 10.1142/S0218301304002545

Review of Particle Physics
journal, August 2014

Olive, K. A.
Chinese Physics C, Vol. 38, Issue 9
DOI: 10.1088/1674-1137/38/9/090001

Electroexcitation of nucleon resonances
journal, January 2012

Aznauryan, I. G.; Burkert, V. D.
Progress in Particle and Nuclear Physics, Vol. 67, Issue 1
DOI: 10.1016/j.ppnp.2011.08.001

Chiral bag model approach to $Δ$ electroproduction
journal, June 1997

Lu, D. H.; Thomas, A. W.; Williams, A. G.
Physical Review C, Vol. 55, Issue 6
DOI: 10.1103/PhysRevC.55.3108

Light baryon magnetic moments and $N \to Δ γ$ transition in a Lorentz covariant chiral quark approach
journal, October 2006

Faessler, Amand; Gutsche, Thomas; Holstein, Barry R.
Physical Review D, Vol. 74, Issue 7
DOI: 10.1103/PhysRevD.74.074010

Pion Cloud and the $Q^{2}$ Dependence of $γ^{*} N \leftrightarrow Δ$ Transition Form Factors
journal, November 1999

Kamalov, S. S.; Nan Yang, Shin
Physical Review Letters, Vol. 83, Issue 22
DOI: 10.1103/PhysRevLett.83.4494

$< ‘ γ^{*} \vec{N} Δ$ transition form factors: A new analysis of data on ${p (e, e}^{'} p) π^{0}$ at $Q^{2} = 2.8$ and $4.0 (GeV {/ c)}^{2}$
journal, August 2001

Kamalov, Sabit S.; Nan Yang, Shin; Drechsel, Dieter
Physical Review C, Vol. 64, Issue 3
DOI: 10.1103/PhysRevC.64.032201

Dynamical study of the $Δ$ excitation in ${N (e, e}^{'} π)$ reactions
journal, March 2001

Sato, T.; Lee, T. -S. H.
Physical Review C, Vol. 63, Issue 5
DOI: 10.1103/PhysRevC.63.055201

Dynamical coupled-channel model of meson production reactions in the nucleon resonance region
journal, February 2007

Matsuyama, A.; Sato, T.; Lee, T. -S. H.
Physics Reports, Vol. 439, Issue 5-6
DOI: 10.1016/j.physrep.2006.12.003

Dynamical coupled-channels effects on pion photoproduction
journal, April 2008

Juliá-Díaz, B.; Lee, T. -S. H.; Matsuyama, A.
Physical Review C, Vol. 77, Issue 4
DOI: 10.1103/PhysRevC.77.045205

Quarks and the helicity structure of photoproduction amplitudes
journal, January 1974

Hey, A. J. G.; Weyers, J.
Physics Letters B, Vol. 48, Issue 1
DOI: 10.1016/0370-2693(74)90461-4

Multipole analysis of resonance photoproduction
journal, February 1976

Babcock, John; Rosner, Jonathan L.
Annals of Physics, Vol. 96, Issue 2
DOI: 10.1016/0003-4916(76)90190-1

Baryon multipole moments in the single quark transition model
journal, March 1979

Cottingham, W. N.; Dunbar, I. H.
Zeitschrift f�r Physik C Particles and Fields, Vol. 2, Issue 1
DOI: 10.1007/BF01546235

Single quark transition model analysis of electromagnetic nucleon resonance excitations in the $[70, 1^{-}]$ supermultiplet
journal, March 2003

Burkert, V. D.; De Vita, R.; Battaglieri, M.
Physical Review C, Vol. 67, Issue 3
DOI: 10.1103/PhysRevC.67.035204

Photoproduction of $N^{*}$ Resonances in the Quark Model
journal, April 1966

Moorhouse, R. G.
Physical Review Letters, Vol. 16, Issue 17
DOI: 10.1103/PhysRevLett.16.772

Hyperfine interactions in negative parity baryons
journal, December 1977

Isgur, Nathan; Karl, Gabriel
Physics Letters B, Vol. 72, Issue 1
DOI: 10.1016/0370-2693(77)90074-0

SU(6)W and decays of baryon resonances
journal, September 1975

Hey, A. J. G.; Litchfield, P. J.; Cashmore, R. J.
Nuclear Physics B, Vol. 95, Issue 3
DOI: 10.1016/0550-3213(75)90333-8

Systematic study of longitudinal and transverse helicity amplitudes in the hypercentral constituent quark model
journal, December 2012

Santopinto, E.; Giannini, M. M.
Physical Review C, Vol. 86, Issue 6
DOI: 10.1103/PhysRevC.86.065202

Electromagnetic properties of baryons in a relativistic quark model
journal, November 2003

Merten, D.; Löring, U.; Metsch, B.
The European Physical Journal A, Vol. 18, Issue 2-3
DOI: 10.1140/epja/i2002-10304-5

Measurements of $e p \to e^{'} π^{+} n$ at $1.6 < W < 2.0$ GeV and extraction of nucleon resonance electrocouplings at CLAS
journal, April 2015

Park, K.; Aznauryan, I. G.; Burkert, V. D.
Physical Review C, Vol. 91, Issue 4
DOI: 10.1103/PhysRevC.91.045203

Cross sections and beam asymmetries for $\vec{e} p \to e n π^{+}$ in the nucleon resonance region for $1.7 ⩽ Q^{2} ⩽ 4.5$ GeV $^{2}$
journal, January 2008

Park, K.; Burkert, V. D.; Kim, W.
Physical Review C, Vol. 77, Issue 1
DOI: 10.1103/PhysRevC.77.015208

Multipole amplitudes of pion photoproduction on nucleons up to $2 GeV$ using dispersion relations and the unitary isobar model
journal, January 2003

Aznauryan, I. G.
Physical Review C, Vol. 67, Issue 1
DOI: 10.1103/PhysRevC.67.015209

Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
journal, November 2009

Aznauryan, I. G.; Burkert, V. D.; Biselli, A. S.
Physical Review C, Vol. 80, Issue 5
DOI: 10.1103/PhysRevC.80.055203

Electroexcitation of the $P_{33} (1232)$ , $P_{11} (1440)$ , $D_{13} (1520)$ , and $S_{11} (1535)$ at $Q^{2} = 0.4$ and $0.65 (GeV / c)^{2}$
journal, January 2005

Aznauryan, I. G.; Burkert, V. D.; Egiyan, H.
Physical Review C, Vol. 71, Issue 1
DOI: 10.1103/PhysRevC.71.015201

Electroexcitation of nucleon resonances at $Q^{2} = 0.65 (GeV / c)^{2}$ from a combined analysis of single- and double-pion electroproduction data
journal, October 2005

Aznauryan, I. G.; Burkert, V. D.; Fedotov, G. V.
Physical Review C, Vol. 72, Issue 4
DOI: 10.1103/PhysRevC.72.045201

A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
journal, January 1999

Drechsel, D.; Hanstein, O.; Kamalov, S. S.
Nuclear Physics A, Vol. 645, Issue 1
DOI: 10.1016/S0375-9474(98)00572-7

Partial-wave analysis of single pion photoproduction in the resonance region using fixed-t dispersion relations
journal, October 1975

Crawford, R. L.
Nuclear Physics B, Vol. 97, Issue 1
DOI: 10.1016/0550-3213(75)90217-5

Global analysis of proton elastic form factor data with two-photon exchange corrections
journal, September 2007

Arrington, J.; Melnitchouk, W.; Tjon, J. A.
Physical Review C, Vol. 76, Issue 3
DOI: 10.1103/PhysRevC.76.035205

Precise Measurement of the Neutron Magnetic Form Factor $G_{M}^{n}$ in the Few- ${GeV}^{2}$ Region
journal, May 2009

Lachniet, J.; Afanasev, A.; Arenhövel, H.
Physical Review Letters, Vol. 102, Issue 19
DOI: 10.1103/PhysRevLett.102.192001

Determination of the Pion Charge Form Factor at $Q^{2} = 1.60$ and $2.45 (GeV / c)^{2}$
journal, November 2006

Horn, T.; Aniol, K.; Arrington, J.
Physical Review Letters, Vol. 97, Issue 19
DOI: 10.1103/PhysRevLett.97.192001

Determination of the pion charge form factor for $Q^{2} =$ 0.60–1.60 GeV $^{2}$
journal, May 2007

Tadevosyan, V.; Blok, H. P.; Huber, G. M.
Physical Review C, Vol. 75, Issue 5
DOI: 10.1103/PhysRevC.75.055205

Measurements of the Electric Form Factor of the Neutron up to $Q^{2} = 3.4 {GeV}^{2}$ Using the Reaction $^{3} \vec{He} (\vec{e}, e^{'} n) p p$
journal, December 2010

Riordan, S.; Abrahamyan, S.; Craver, B.
Physical Review Letters, Vol. 105, Issue 26
DOI: 10.1103/PhysRevLett.105.262302

Relativistic quark model predictions for meson radiative transition form factors
journal, October 1990

Aznauryan, I. G.; Oganessyan, K. A.
Physics Letters B, Vol. 249, Issue 2
DOI: 10.1016/0370-2693(90)91261-9

Similar Records in DOE PAGES and OSTI.GOV collections:

Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction

Journal Article Aznauryan, I G ; Yerevan Physics Institute, 375036 Yerevan ; Burkert, V D ; ... - Physical Review. C, Nuclear Physics

We present results on the electroexcitation of the low mass resonances {delta}(1232)P{sub 33}, N(1440)P{sub 11}, N(1520)D{sub 13}, and N(1535)S{sub 11} in a wide range of Q{sup 2}. The results were obtained in the comprehensive analysis of data from the Continuous Electron Beam Accelerator Facility (CEBAF) large acceptance spectrometer (CLAS) detector at the Thomas Jefferson National Accelerator Facility (JLab) on differential cross sections, longitudinally polarized beam asymmetries, and longitudinal target and beam-target asymmetries for {pi} electroproduction off the proton. The data were analyzed using two conceptually different approaches--fixed-t dispersion relations and a unitary isobar model--allowing us to draw conclusions on themore »« less
https://doi.org/10.1103/PHYSREVC.80.055203
Electroexcitation of the Roper resonance for 1.7<Q{sup 2}<4.5 GeV{sup 2} in e-vectorp{yields}en{pi}{sup +}

Journal Article Aznauryan, I G ; Yerevan Physics Institute, 375036 Yerevan ; Burkert, V D ; ... - Physical Review. C, Nuclear Physics

The helicity amplitudes of the electroexcitation of the Roper resonance are extracted for 1.7<Q{sup 2}<4.5 GeV{sup 2} from recent high precision JLab-CLAS cross section and longitudinally polarized beam asymmetry data for {pi}{sup +} electroproduction on protons at W=1.15-1.69 GeV. The analysis is made using two approaches, dispersion relations and a unitary isobar model, which give consistent Q{sup 2} behavior of the helicity amplitudes for the {gamma}*p{yields}N(1440)P{sub 11} transition. It is found that the transverse helicity amplitude A{sub 1/2}, which is large and negative at Q{sup 2}=0, becomes large and positive at Q{sup 2}{approx_equal}2 GeV{sup 2}, and then drops slowly withmore »« less
https://doi.org/10.1103/PHYSREVC.78.045209
First results on nucleon resonance electroexcitation amplitudes from ep → e'π⁺π^–p' cross sections at W = 1.4–1.7 GeV and Q² = 2.0–5.0 GeV²

Journal Article Mokeev, V. I. ; Achenbach, P. ; Burkert, V. D. ; ... - Physical Review. C

The electroexcitation amplitudes ormore »« less
https://doi.org/10.1103/physrevc.108.025204
Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction

Journal Article I. G. Aznauryan, V. D. Burkert - Physical Review C

We present results on the electroexcitation of the low mass resonances Delta(1232)P33, N(1440)P11, N(1520)D13, and N(1535)S11 in a wide range of Q2. The results were obtained in the comprehensive analysis of JLab-CLAS data on differential cross sections, longitudinally polarized beam asymmetries, and longitudinal target and beam-target asymmetries for pion electroproduction off the proton. The data were analysed using two conceptually different approaches, fixed-t dispersion relations and a unitary isobar model, allowing us to draw conclusions on the model sensitivity of the obtained electrocoupling amplitudes. The amplitudes for the Delta(1232)P33} show the importance of a meson-cloud contribution to quantitatively explain themore »« less
https://doi.org/10.1103/PhysRevC.80.055203

Full Text Available
Measurements of $$ep \to e^\prime π^+n$$ at W = 1.6 - 2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS

Journal Article Park, Kijun ; Aznauryan, I. G. ; Burkert, V. D. ; ... - Physical Review C, Nuclear Physics

Differential cross sections of the exclusive processmore »« less
Cited by 53
https://doi.org/10.1103/PhysRevC.91.045203

Full Text Available

Similar Records

Title: Extracting meson-baryon contributions to the electroexcitation of the N (1675)-5/2 nucleon resonance

Abstract

Citation Formats

A schematic model of baryons and mesons journal, February 1964

Single pion photoproduction in the quark model journal, October 1969

Electromagnetic Meson Production in the Nucleon Resonance Region journal, December 2004

Review of Particle Physics journal, August 2014

Electroexcitation of nucleon resonances journal, January 2012

Chiral bag model approach to Δ electroproduction journal, June 1997

Light baryon magnetic moments and N → Δ γ transition in a Lorentz covariant chiral quark approach journal, October 2006

Pion Cloud and the Q 2 Dependence of γ * N ↔ Δ Transition Form Factors journal, November 1999

< ‘ γ * N → Δ transition form factors: A new analysis of data on p ( e , e ′ p ) π 0 at Q 2 = 2.8 and 4.0 ( GeV / c ) 2 journal, August 2001

Dynamical study of the Δ excitation in N ( e , e ′ π ) reactions journal, March 2001

Dynamical coupled-channel model of meson production reactions in the nucleon resonance region journal, February 2007

Dynamical coupled-channels effects on pion photoproduction journal, April 2008

Quarks and the helicity structure of photoproduction amplitudes journal, January 1974

Multipole analysis of resonance photoproduction journal, February 1976

Baryon multipole moments in the single quark transition model journal, March 1979

Single quark transition model analysis of electromagnetic nucleon resonance excitations in the [ 7 0 , 1 − ] supermultiplet journal, March 2003

Photoproduction of N * Resonances in the Quark Model journal, April 1966

Hyperfine interactions in negative parity baryons journal, December 1977

SU(6)W and decays of baryon resonances journal, September 1975

Systematic study of longitudinal and transverse helicity amplitudes in the hypercentral constituent quark model journal, December 2012

Electromagnetic properties of baryons in a relativistic quark model journal, November 2003

Measurements of e p → e ′ π + n at 1.6 < W < 2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS journal, April 2015

Cross sections and beam asymmetries for e → p → e n π + in the nucleon resonance region for 1 . 7 ⩽ Q 2 ⩽ 4 . 5 GeV 2 journal, January 2008

Multipole amplitudes of pion photoproduction on nucleons up to 2 GeV using dispersion relations and the unitary isobar model journal, January 2003

Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction journal, November 2009

Electroexcitation of the P 33 ( 1232 ) , P 11 ( 1440 ) , D 13 ( 1520 ) , and S 11 ( 1535 ) at Q 2 = 0.4 and 0.65 ( GeV / c ) 2 journal, January 2005

Electroexcitation of nucleon resonances at Q 2 = 0 . 65 ( GeV / c ) 2 from a combined analysis of single- and double-pion electroproduction data journal, October 2005

A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV journal, January 1999

Partial-wave analysis of single pion photoproduction in the resonance region using fixed-t dispersion relations journal, October 1975

Global analysis of proton elastic form factor data with two-photon exchange corrections journal, September 2007

Precise Measurement of the Neutron Magnetic Form Factor G M n in the Few- GeV 2 Region journal, May 2009

Determination of the Pion Charge Form Factor at Q 2 = 1.60 and 2.45 ( GeV / c ) 2 journal, November 2006

Determination of the pion charge form factor for Q 2 = 0.60–1.60 GeV 2 journal, May 2007

Measurements of the Electric Form Factor of the Neutron up to Q 2 = 3.4 GeV 2 Using the Reaction 3 He → ( e → , e ′ n ) p p journal, December 2010

Relativistic quark model predictions for meson radiative transition form factors journal, October 1990

Title: Extracting meson-baryon contributions to the electroexcitation of the N (1675)^{^-5}/₂ nucleon resonance

A schematic model of baryons and mesons
journal, February 1964

Single pion photoproduction in the quark model
journal, October 1969

Electromagnetic Meson Production in the Nucleon Resonance Region
journal, December 2004

Review of Particle Physics
journal, August 2014

Electroexcitation of nucleon resonances
journal, January 2012

Chiral bag model approach to $Δ$ electroproduction
journal, June 1997

Light baryon magnetic moments and $N \to Δ γ$ transition in a Lorentz covariant chiral quark approach
journal, October 2006

Pion Cloud and the $Q^{2}$ Dependence of $γ^{*} N \leftrightarrow Δ$ Transition Form Factors
journal, November 1999

$< ‘ γ^{*} \vec{N} Δ$ transition form factors: A new analysis of data on ${p (e, e}^{'} p) π^{0}$ at $Q^{2} = 2.8$ and $4.0 (GeV {/ c)}^{2}$
journal, August 2001

Dynamical study of the $Δ$ excitation in ${N (e, e}^{'} π)$ reactions
journal, March 2001

Dynamical coupled-channel model of meson production reactions in the nucleon resonance region
journal, February 2007

Dynamical coupled-channels effects on pion photoproduction
journal, April 2008

Quarks and the helicity structure of photoproduction amplitudes
journal, January 1974

Multipole analysis of resonance photoproduction
journal, February 1976

Baryon multipole moments in the single quark transition model
journal, March 1979

Single quark transition model analysis of electromagnetic nucleon resonance excitations in the $[70, 1^{-}]$ supermultiplet
journal, March 2003

Photoproduction of $N^{*}$ Resonances in the Quark Model
journal, April 1966

Hyperfine interactions in negative parity baryons
journal, December 1977

SU(6)W and decays of baryon resonances
journal, September 1975

Systematic study of longitudinal and transverse helicity amplitudes in the hypercentral constituent quark model
journal, December 2012

Electromagnetic properties of baryons in a relativistic quark model
journal, November 2003

Measurements of $e p \to e^{'} π^{+} n$ at $1.6 < W < 2.0$ GeV and extraction of nucleon resonance electrocouplings at CLAS
journal, April 2015

Cross sections and beam asymmetries for $\vec{e} p \to e n π^{+}$ in the nucleon resonance region for $1.7 ⩽ Q^{2} ⩽ 4.5$ GeV $^{2}$
journal, January 2008

Multipole amplitudes of pion photoproduction on nucleons up to $2 GeV$ using dispersion relations and the unitary isobar model
journal, January 2003

Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
journal, November 2009

Electroexcitation of the $P_{33} (1232)$ , $P_{11} (1440)$ , $D_{13} (1520)$ , and $S_{11} (1535)$ at $Q^{2} = 0.4$ and $0.65 (GeV / c)^{2}$
journal, January 2005

Electroexcitation of nucleon resonances at $Q^{2} = 0.65 (GeV / c)^{2}$ from a combined analysis of single- and double-pion electroproduction data
journal, October 2005

A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
journal, January 1999

Partial-wave analysis of single pion photoproduction in the resonance region using fixed-t dispersion relations
journal, October 1975

Global analysis of proton elastic form factor data with two-photon exchange corrections
journal, September 2007

Precise Measurement of the Neutron Magnetic Form Factor $G_{M}^{n}$ in the Few- ${GeV}^{2}$ Region
journal, May 2009

Determination of the Pion Charge Form Factor at $Q^{2} = 1.60$ and $2.45 (GeV / c)^{2}$
journal, November 2006

Determination of the pion charge form factor for $Q^{2} =$ 0.60–1.60 GeV $^{2}$
journal, May 2007

Measurements of the Electric Form Factor of the Neutron up to $Q^{2} = 3.4 {GeV}^{2}$ Using the Reaction $^{3} \vec{He} (\vec{e}, e^{'} n) p p$
journal, December 2010

Relativistic quark model predictions for meson radiative transition form factors
journal, October 1990