Jülich-Bonn-Washington model for pion electroproduction multipoles

Mai, M.; Döring, M.; Granados, C.; Haberzettl, H.; Meißner, Ulf-G; Rönchen, D.; Strakovsky, I.; Workman, R.

doi:10.1103/physrevc.103.065204

Title: Jülich-Bonn-Washington model for pion electroproduction multipoles

Abstract

Pion electroproduction off the proton is analyzed in a new framework based on a general parametrization of transition amplitudes, including constraints from gauge invariance and threshold behavior. Data with energies 1.13 GeV < W < 1.6 GeV and Q² below 6 Ge V² are included. The model is an extension of the latest Jülich-Bonn solution incorporating constraints from pion-induced and photoproduction data. Here, performing large-scale fits (≈10⁵ data) we find a set of solutions with $$χ^2_{\text{dof}}$$ = 1.69–1.81 which allows us to assess the systematic uncertainty of the approach.

Authors:

Mai, M. ^[1]; Döring, M. ^[2]; Granados, C. ^[1];

^[1];

^[3];

^[4];

^[1]; Workman, R. ^[1]

George Washington Univ., Washington, DC (United States)
George Washington Univ., Washington, DC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Universität Bonn (Germany); Forschungszentrum Juelich (Germany); Tbilisi State University (Georgia)
Forschungszentrum Juelich (Germany)

Publication Date:: Fri Jun 25 00:00:00 EDT 2021

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

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); National Natural Science Foundation of China (NSFC); German Research Foundation (DFG); Chinese Academy of Sciences (CAS); VolkswagenStiftung; EU Horizon 2020

Contributing Org.:: Jülich-Bonn-Washington Collaboration

OSTI Identifier:: 1798691

Report Number(s):: JLAB-THY-21-3348; DOE/OR/23177-5166; arXiv:2104.07312
Journal ID: ISSN 2469-9985; TRN: US2210733

Grant/Contract Number:: SC0016583; SC0016582; AC05-06OR23177; 12070131001; 2018DM0034; 93562; 824093

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 103; Journal Issue: 6; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Mai, M., Döring, M., Granados, C., Haberzettl, H., Meißner, Ulf-G, Rönchen, D., Strakovsky, I., and Workman, R. Jülich-Bonn-Washington model for pion electroproduction multipoles.  United States: N. p., 2021. 
Web.  doi:10.1103/physrevc.103.065204.

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                    Mai, M., Döring, M., Granados, C., Haberzettl, H., Meißner, Ulf-G, Rönchen, D., Strakovsky, I., & Workman, R. Jülich-Bonn-Washington model for pion electroproduction multipoles.  United States.  https://doi.org/10.1103/physrevc.103.065204

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                    Mai, M., Döring, M., Granados, C., Haberzettl, H., Meißner, Ulf-G, Rönchen, D., Strakovsky, I., and Workman, R. Fri .  
"Jülich-Bonn-Washington model for pion electroproduction multipoles".  United States.  https://doi.org/10.1103/physrevc.103.065204.  https://www.osti.gov/servlets/purl/1798691.

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@article{osti_1798691,

  title        = {Jülich-Bonn-Washington model for pion electroproduction multipoles},

  author       = {Mai, M. and Döring, M. and Granados, C. and Haberzettl, H. and Meißner, Ulf-G and Rönchen, D. and Strakovsky, I. and Workman, R.},

  abstractNote = {Pion electroproduction off the proton is analyzed in a new framework based on a general parametrization of transition amplitudes, including constraints from gauge invariance and threshold behavior. Data with energies 1.13 GeV < W < 1.6 GeV and Q2 below 6 Ge V2 are included. The model is an extension of the latest Jülich-Bonn solution incorporating constraints from pion-induced and photoproduction data. Here, performing large-scale fits (≈105 data) we find a set of solutions with $χ^2_{\text{dof}}$ = 1.69–1.81 which allows us to assess the systematic uncertainty of the approach.},

  doi          = {10.1103/physrevc.103.065204},

  journal      = {Physical Review C},

  number       = 6,

  volume       = 103,

  place        = {United States},

  year         = {Fri Jun 25 00:00:00 EDT 2021},

  month        = {Fri Jun 25 00:00:00 EDT 2021}

}

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Title: Jülich-Bonn-Washington model for pion electroproduction multipoles

Abstract

Citation Formats

Ab Initio Determination of Light Hadron Masses journal, November 2008

Unitary isobar model --MAID2007 journal, October 2007

Nucleon Mass from a Covariant Three-Quark Faddeev Equation journal, May 2010

Eta and etaprime photoproduction on the nucleon with the isobar model EtaMAID2018 journal, December 2018

Excited baryons in lattice QCD journal, June 2003

New results from the studies of the N ( 1440 ) 1 / 2 + , N ( 1520 ) 3 / 2 − , and Δ ( 1620 ) 1 / 2 − resonances in exclusive e p → e ′ p ′ π + π − electroproduction with the CLAS detector journal, February 2016

Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation journal, May 2019

Beam-helicity asymmetry in photon and pion electroproduction in the Δ(1232)-resonance region at Q2 = 0.35(GeV/c)2 journal, March 2007

Photon– and pion–nucleon interactions in a unitary and causal effective field theory based on the chiral Lagrangian journal, December 2010

Investigation of the Conjectured Nucleon Deformation at Low Momentum Transfer journal, January 2005

Beam helicity asymmetries in $K^{+} \Lambda$ K + Λ electroproduction off the proton at low Q2 journal, October 2017

Search for Quadrupole Strength in the Electroexcitation of the Δ + ( 1232 ) journal, April 2001

Evidence for the N′(1720)3/2+ nucleon resonance from combined studies of CLAS π+π−p photo- and electroproduction data journal, June 2020

Baryons as relativistic three-quark bound states journal, November 2016

Q 2 Dependence of Quadrupole Strength in the γ * p → Δ + ( 1232 ) → p π 0 Transition journal, March 2002

Spectrum of Light- and Heavy-Baryons journal, April 2019

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ journal, April 2013

Polarized structure function σ LT ' for H 1 ( e → , e ' K + ) Λ in the nucleon resonance region journal, June 2008

Excited state baryon spectroscopy from lattice QCD journal, October 2011

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

Scattering in the π N negative parity channel in lattice QCD journal, March 2013

Pion–nucleon scattering in an effective chiral field theory with explicit spin- fields journal, January 2001

Flavor structure of the excited baryon spectra from lattice QCD journal, March 2013

Quasi-two-body decays of nonstrange baryons journal, May 1994

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

Heavy baryon chiral perturbation theory with light deltas journal, October 1998

Measurement of the Recoil Polarization in the p ( e → , e ′ p → ) π 0 Reaction at the Δ ( 1232 ) Resonance journal, April 2001

Measurement of the LT-asymmetry in πelectroproduction at the energy of the Δ(1232)-resonance journal, January 2006

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

On the general theory of collisions for particles with spin journal, August 1959

Hybrid baryons in QCD journal, March 2012

A measurement of the longitudinal and transverse parts of the π+ electroproduction cross-section at 1175 MeV pion-nucleon centre-of-mass energy journal, July 1975

Electromagnetic $${\varvec{N}}^{\varvec{*}}$$ N ∗ Transition Form Factors in the ANL-Osaka Dynamical Coupled-Channels Approach journal, March 2018

N*'s AND Δ's GENERATED IN VECTOR, PSEUDOSCALAR MESON-BARYON SYSTEMS journal, January 2014

K − p scattering length from scattering experiments journal, November 2006

Longitudinal Electroproduction of Charged Pions from H 1 , H 2 , and H 3 e journal, October 2001

Nucleon electromagnetic form factors and electroexcitation of low-lying nucleon resonances in a light-front relativistic quark model journal, May 2012

Electroproduction of π0 mesons in the resonance region at q2=1.0 (GeV/c)2 journal, October 1981

Transition form factors: γ * + p → Δ ( 1232 ) , Δ ( 1600 ) journal, August 2019

Hadron properties and Dyson–Schwinger equations journal, July 2008

Electromagnetic form factors of the $\Delta(1232)$ excitation journal, July 2003

Photo- and electroproduction of nonstrange baryon resonances in the relativized quark model journal, October 1992

Electromagnetic transition form factors of the Roper resonance in a phenomenological field theory journal, July 2014

Relativistic Dispersion Relation Approach to Photomeson Production journal, June 1957

Nucleon-to-Roper electromagnetic transition form factors at large Q 2 journal, February 2019

Covariant model for the Dalitz decay of the N ( 1535 ) resonance journal, June 2020

Forward π+ electroproduction in the first resonance region at four-momentum transfers q2 = −0.15 and −0.3 GeV2/c2 journal, December 1978

Nucleon-to- Δ transition form factors in chiral effective field theory using the complex-mass scheme journal, March 2018

Threshold pion electroproduction in chiral perturbation theory journal, October 1994

The Nucleon Resonance Structure from the π+π−p Electroproduction Reaction off Protons journal, May 2019

Beam-Recoil Polarization Measurement of π 0 Electroproduction on the Proton in the Region of the Roper Resonance journal, July 2017

Transition Amplitudes for Photoproduction of Mesons from Nucleons and Photodisintegration of the Deuteron journal, August 1957

Radiative decay of the journal, April 2007

Nucleon resonances within a dynamical coupled-channels model of π N and γ N reactions journal, September 2013

Baryon resonance analysis from SAID journal, December 2009

Electron scattering by nuclei journal, January 1980

Electroproduction of π+ mesons in the resonance region journal, November 1975

Spectroscopy of baryon resonances journal, January 2017

Backward electroproduction of π+ mesons in the second and third nucleon resonance region journal, June 1983

Pion-nucleon scattering in the Roper channel from lattice QCD journal, January 2017

Chiral dynamics in the γ p → π 0 η p and γ p → π 0 K 0 Σ + reactions journal, April 2006

Regge description of charged pseudoscalar meson electroproduction above the resonance region journal, March 1998

Correlations of π N partial waves for multireaction analyses journal, June 2016

Electromagnetic excitation of nucleon resonances journal, September 2011

Contact-interaction Faddeev equation and, inter alia , proton tensor charges journal, December 2015

Light baryon masses with dynamical twisted mass fermions journal, July 2008

π + photoproduction on the proton for photon energies from 0.725 to 2.875 GeV journal, June 2009

Covariant model for the γ N → N ( 1535 ) transition at high momentum transfer journal, August 2011

Lowest- Q2 measurement of the γp → Δ reaction: Probing the pionic contribution journal, December 2006

Erratum to: Photocouplings at the pole from pion photoproduction journal, May 2015

Studies of n* Structure from the clas Meson Electroproduction data journal, January 2014

Photocouplings at the pole from pion photoproduction journal, June 2014

On the low-energy theorems for threshold pion electroproduction journal, May 1992

Nucleon and Roper electromagnetic elastic and transition form factors journal, February 2012

Kaon Photoproduction and the Λ Decay Parameter α − journal, October 2019

First measurement of the polarization observable E in the p → ( γ → , π + ) n reaction up to 2.25 GeV journal, November 2015

Watson’s theorem and the N Δ ( 1232 ) axial transition journal, January 2016

Ab Initio Determination of Light Hadron Masses
journal, November 2008

Unitary isobar model --MAID2007
journal, October 2007

Nucleon Mass from a Covariant Three-Quark Faddeev Equation
journal, May 2010

Eta and etaprime photoproduction on the nucleon with the isobar model EtaMAID2018
journal, December 2018

Excited baryons in lattice QCD
journal, June 2003

New results from the studies of the $N (1440) 1 / 2^{+}, N (1520) 3 / 2^{-}$ , and $Δ (1620) 1 / 2^{-}$ resonances in exclusive $e p \to e^{'} p^{'} π^{+} π^{-}$ electroproduction with the CLAS detector
journal, February 2016

Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation
journal, May 2019

Beam-helicity asymmetry in photon and pion electroproduction in the Δ(1232)-resonance region at Q2 = 0.35(GeV/c)2
journal, March 2007

Photon– and pion–nucleon interactions in a unitary and causal effective field theory based on the chiral Lagrangian
journal, December 2010

Investigation of the Conjectured Nucleon Deformation at Low Momentum Transfer
journal, January 2005

Beam helicity asymmetries in $K^{+} \Lambda$ K + Λ electroproduction off the proton at low Q2
journal, October 2017

Search for Quadrupole Strength in the Electroexcitation of the $Δ^{+} (1232)$
journal, April 2001

Evidence for the N′(1720)3/2+ nucleon resonance from combined studies of CLAS π+π−p photo- and electroproduction data
journal, June 2020

Baryons as relativistic three-quark bound states
journal, November 2016

$Q^{2}$ Dependence of Quadrupole Strength in the $γ^{*} p \to Δ^{+} (1232) \to p π^{0}$ Transition
journal, March 2002

Spectrum of Light- and Heavy-Baryons
journal, April 2019

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ
journal, April 2013

Polarized structure function $σ_{{LT}^{'}}$ for ${}^{1}H$ $(\vec{e}, e^{'} K^{+}) Λ$ in the nucleon resonance region
journal, June 2008

Excited state baryon spectroscopy from lattice QCD
journal, October 2011

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

Scattering in the $π N$ negative parity channel in lattice QCD
journal, March 2013

Pion–nucleon scattering in an effective chiral field theory with explicit spin- fields
journal, January 2001

Flavor structure of the excited baryon spectra from lattice QCD
journal, March 2013

Quasi-two-body decays of nonstrange baryons
journal, May 1994

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

Heavy baryon chiral perturbation theory with light deltas
journal, October 1998

Measurement of the Recoil Polarization in the $p (\vec{e}, e^{'} \vec{p}) π^{0}$ Reaction at the $Δ (1232)$ Resonance
journal, April 2001

Measurement of the LT-asymmetry in πelectroproduction at the energy of the Δ(1232)-resonance
journal, January 2006

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

On the general theory of collisions for particles with spin
journal, August 1959

Hybrid baryons in QCD
journal, March 2012

A measurement of the longitudinal and transverse parts of the π+ electroproduction cross-section at 1175 MeV pion-nucleon centre-of-mass energy
journal, July 1975

Electromagnetic $${\varvec{N}}^{\varvec{*}}$$ N ∗ Transition Form Factors in the ANL-Osaka Dynamical Coupled-Channels Approach
journal, March 2018

N*'s AND Δ's GENERATED IN VECTOR, PSEUDOSCALAR MESON-BARYON SYSTEMS
journal, January 2014

$K^{-} p$ scattering length from scattering experiments
journal, November 2006

Longitudinal Electroproduction of Charged Pions from ${}^{1}H$ , ${}^{2}H$ , and ${}^{3}H e$
journal, October 2001

Nucleon electromagnetic form factors and electroexcitation of low-lying nucleon resonances in a light-front relativistic quark model
journal, May 2012

Electroproduction of π0 mesons in the resonance region at q2=1.0 (GeV/c)2
journal, October 1981

Transition form factors: $γ^{*} + p \to Δ (1232)$ , $Δ (1600)$
journal, August 2019

Hadron properties and Dyson–Schwinger equations
journal, July 2008

Electromagnetic form factors of the $\Delta(1232)$ excitation
journal, July 2003

Photo- and electroproduction of nonstrange baryon resonances in the relativized quark model
journal, October 1992

Electromagnetic transition form factors of the Roper resonance in a phenomenological field theory
journal, July 2014

Relativistic Dispersion Relation Approach to Photomeson Production
journal, June 1957

Nucleon-to-Roper electromagnetic transition form factors at large $Q^{2}$
journal, February 2019

Covariant model for the Dalitz decay of the $N (1535)$ resonance
journal, June 2020

Forward π+ electroproduction in the first resonance region at four-momentum transfers q2 = −0.15 and −0.3 GeV2/c2
journal, December 1978

Nucleon-to- $Δ$ transition form factors in chiral effective field theory using the complex-mass scheme
journal, March 2018

Threshold pion electroproduction in chiral perturbation theory
journal, October 1994

The Nucleon Resonance Structure from the π+π−p Electroproduction Reaction off Protons
journal, May 2019

Beam-Recoil Polarization Measurement of $π^{0}$ Electroproduction on the Proton in the Region of the Roper Resonance
journal, July 2017

Transition Amplitudes for Photoproduction of Mesons from Nucleons and Photodisintegration of the Deuteron
journal, August 1957

Radiative decay of the
journal, April 2007

Nucleon resonances within a dynamical coupled-channels model of $π N$ and $γ N$ reactions
journal, September 2013

Baryon resonance analysis from SAID
journal, December 2009

Electron scattering by nuclei
journal, January 1980

Electroproduction of π+ mesons in the resonance region
journal, November 1975

Spectroscopy of baryon resonances
journal, January 2017

Backward electroproduction of π+ mesons in the second and third nucleon resonance region
journal, June 1983

Pion-nucleon scattering in the Roper channel from lattice QCD
journal, January 2017

Chiral dynamics in the $γ p \to π^{0} η p$ and $γ p \to π^{0} K^{0} Σ^{+}$ reactions
journal, April 2006

Regge description of charged pseudoscalar meson electroproduction above the resonance region
journal, March 1998

Correlations of $π N$ partial waves for multireaction analyses
journal, June 2016

Electromagnetic excitation of nucleon resonances
journal, September 2011

Contact-interaction Faddeev equation and, inter alia , proton tensor charges
journal, December 2015

Light baryon masses with dynamical twisted mass fermions
journal, July 2008

$π^{+}$ photoproduction on the proton for photon energies from 0.725 to 2.875 GeV
journal, June 2009

Covariant model for the $γ N \to N (1535)$ transition at high momentum transfer
journal, August 2011

Lowest- Q2 measurement of the γp → Δ reaction: Probing the pionic contribution
journal, December 2006

Erratum to: Photocouplings at the pole from pion photoproduction
journal, May 2015

Studies of n* Structure from the clas Meson Electroproduction data
journal, January 2014

Photocouplings at the pole from pion photoproduction
journal, June 2014

On the low-energy theorems for threshold pion electroproduction
journal, May 1992

Nucleon and Roper electromagnetic elastic and transition form factors
journal, February 2012

Kaon Photoproduction and the $Λ$ Decay Parameter $α_{-}$
journal, October 2019

First measurement of the polarization observable E in the $\vec{p} (\vec{γ}, π^{+}) n$ reaction up to 2.25 GeV
journal, November 2015

Watson’s theorem and the $N Δ (1232)$ axial transition
journal, January 2016

Coincidence electroproduction of single neutral pions in the resonance region at q2 = 0.5 (GeV/c)2
journal, August 1979

Measurement of the transverse–longitudinal cross sections in the p(e→,e′p)π0 reaction in the Δ region
journal, July 2003

Amplitude reconstruction from complete electroproduction experiments and truncated partial-wave expansions
journal, August 2017