Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry
Abstract
We examine the efficacy of pion exchange models to simultaneously describe leading neutron electroproduction at HERA and the $$\bar{d}-\bar{u}$$ flavor asymmetry in the proton. A detailed $$\chi^2$$ analysis of the ZEUS and H1 cross sections, when combined with constraints on the pion flux from Drell-Yan data, allows regions of applicability of one-pion exchange to be delineated. The analysis disfavors several models of the pion flux used in the literature, and yields an improved extraction of the pion structure function and its uncertainties at parton momentum fractions in the pion of $$4 \times 10^{-4} \lesssim x_\pi \lesssim 0.05$$ at a scale of $Q^2$=10 GeV$^2$. Based on the fit results, we provide estimates for leading proton structure functions in upcoming tagged deep-inelastic scattering experiments at Jefferson Lab on the deuteron with forward protons.
- Authors:
-
- North Carolina State Univ., Raleigh, NC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of North Carolina, Chapel Hill, NC (United States)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- North Carolina State Univ., Raleigh, NC (United States)
- Publication Date:
- 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:
- 1245177
- Report Number(s):
- JLAB-THY-15-2183; DOE/OR/23177-3722; arXiv:1512.04459
Journal ID: ISSN 2470-0010; PRVDAQ
- DOE Contract Number:
- AC05-06OR23177; FG02-03ER41260
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 5; Journal ID: ISSN 2470-0010
- Country of Publication:
- United States
- Language:
- English
Citation Formats
McKenney, Joshua R., Sato Gonzalez, Nobuo, Melnitchouk, Wally, and Ji, Chueng-Ryong. Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry. United States: N. p., 2016.
Web. doi:10.1103/PhysRevD.93.054011.
McKenney, Joshua R., Sato Gonzalez, Nobuo, Melnitchouk, Wally, & Ji, Chueng-Ryong. Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry. United States. https://doi.org/10.1103/PhysRevD.93.054011
McKenney, Joshua R., Sato Gonzalez, Nobuo, Melnitchouk, Wally, and Ji, Chueng-Ryong. 2016.
"Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry". United States. https://doi.org/10.1103/PhysRevD.93.054011. https://www.osti.gov/servlets/purl/1245177.
@article{osti_1245177,
title = {Pion structure function from leading neutron electroproduction and SU(2) flavor asymmetry},
author = {McKenney, Joshua R. and Sato Gonzalez, Nobuo and Melnitchouk, Wally and Ji, Chueng-Ryong},
abstractNote = {We examine the efficacy of pion exchange models to simultaneously describe leading neutron electroproduction at HERA and the $\bar{d}-\bar{u}$ flavor asymmetry in the proton. A detailed $\chi^2$ analysis of the ZEUS and H1 cross sections, when combined with constraints on the pion flux from Drell-Yan data, allows regions of applicability of one-pion exchange to be delineated. The analysis disfavors several models of the pion flux used in the literature, and yields an improved extraction of the pion structure function and its uncertainties at parton momentum fractions in the pion of $4 \times 10^{-4} \lesssim x_\pi \lesssim 0.05$ at a scale of $Q^2$=10 GeV$^2$. Based on the fit results, we provide estimates for leading proton structure functions in upcoming tagged deep-inelastic scattering experiments at Jefferson Lab on the deuteron with forward protons.},
doi = {10.1103/PhysRevD.93.054011},
url = {https://www.osti.gov/biblio/1245177},
journal = {Physical Review D},
issn = {2470-0010},
number = 5,
volume = 93,
place = {United States},
year = {Tue Mar 01 00:00:00 EST 2016},
month = {Tue Mar 01 00:00:00 EST 2016}
}
Works referenced in this record:
The Existence of a Neutron
journal, June 1932
- Chadwick, J.
- Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 136, Issue 830
Observations on the Tracks of Slow Mesons in Photographic Emulsions*
journal, October 1947
- Lattes, C. M. G.; Occhialini, G. P. S.; Powell, C. F.
- Nature, Vol. 160, Issue 4066
The nucleon-nucleon interaction
journal, March 2001
- Machleidt, R.; Slaus, I.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 27, Issue 5
Quark-hadron duality in electron-pion scattering
journal, June 2003
- Melnitchouk, W.
- The European Physical Journal A, Vol. 17, Issue 2
Higher twists in the pion structure function
journal, April 2003
- Melnitchouk, W.
- Physical Review D, Vol. 67, Issue 7
Broken chiral symmetry on a null plane
journal, October 2013
- Beane, Silas R.
- Annals of Physics, Vol. 337
Light-front representation of chiral dynamics in peripheral transverse densities
journal, July 2015
- Granados, C.; Weiss, C.
- Journal of High Energy Physics, Vol. 2015, Issue 7
A limit on the pionic component of the nucleon through SU(3) flavour breaking in the sea
journal, June 1983
- Thomas, A. W.
- Physics Letters B, Vol. 126, Issue 1-2
One-Pion Exchange and Deep-Inelastic Electron-Nucleon Scattering
journal, April 1972
- Sullivan, J. D.
- Physical Review D, Vol. 5, Issue 7
Gottfried sum from the ratio /
journal, May 1991
- Amaudruz, P.; Arneodo, M.; Arvidson, A.
- Physical Review Letters, Vol. 66, Issue 21
Reevaluation of the Gottfried sum
journal, July 1994
- Arneodo, M.; Arvidson, A.; Badelek, B.
- Physical Review D, Vol. 50, Issue 1
Improved measurement of the asymmetry in the nucleon sea
journal, August 2001
- Towell, R. S.; McGaughey, P. L.; Awes, T. C.
- Physical Review D, Vol. 64, Issue 5
Flavor asymmetry of light quarks in the nucleon sea
journal, January 2001
- Garvey, G. T.; Peng, J. -C.
- Progress in Particle and Nuclear Physics, Vol. 47, Issue 1
Dynamical Symmetry Breaking in the Sea of the Nucleon
journal, October 2000
- Thomas, A. W.; Melnitchouk, W.; Steffens, F. M.
- Physical Review Letters, Vol. 85, Issue 14
Chiral Extrapolation of Lattice Moments of Proton Quark Distributions
journal, October 2001
- Detmold, W.; Melnitchouk, W.; Negele, J. W.
- Physical Review Letters, Vol. 87, Issue 17
Is the Sullivan process compatible with QCD chiral dynamics?
journal, December 2001
- Chen, Jiunn-Wei; Ji, Xiangdong
- Physics Letters B, Vol. 523, Issue 1-2
Chiral corrections to matrix elements of twist-2 operators
journal, January 2002
- Arndt, Daniel; Savage, Martin J.
- Nuclear Physics A, Vol. 697, Issue 1-2
Chiral perturbation theory and the first moments of the generalized parton distributions in a nucleon
journal, January 2008
- Dorati, Marina; Gail, Tobias A.; Hemmert, Thomas R.
- Nuclear Physics A, Vol. 798, Issue 3-4
Pion momentum distributions in the nucleon in chiral effective theory
journal, March 2013
- Burkardt, M.; Hendricks, K. S.; Ji, Chueng-Ryong
- Physical Review D, Vol. 87, Issue 5
Asymmetry in the Proton in Chiral Effective Theory
journal, March 2015
- Salamu, Yusupujiang; Ji, Chueng-Ryong; Melnitchouk, W.
- Physical Review Letters, Vol. 114, Issue 12
Leading neutron production in e+p collisions at HERA
journal, August 2002
- Chekanov, S.; Krakauer, D.; Magill, S.
- Nuclear Physics B, Vol. 637, Issue 1-3
Measurement of leading neutron production in deep-inelastic scattering at HERA
journal, July 2010
- Aaron, F. D.; Alexa, C.; Andreev, V.
- The European Physical Journal C, Vol. 68, Issue 3-4
Leading neutron energy and distributions in deep inelastic scattering and photoproduction at HERA
journal, July 2007
- Chekanov, S.; Derrick, M.; Magill, S.
- Nuclear Physics B, Vol. 776, Issue 1-2
How to measure the pion structure function at HERA
journal, October 1994
- Holtmann, H.; Levman, G.; Nikolaev, N. N.
- Physics Letters B, Vol. 338, Issue 2-3
Pion structure function at small from deep-inelastic scattering data
journal, June 2012
- Kopeliovich, B. Z.; Potashnikova, I. K.; Povh, B.
- Physical Review D, Vol. 85, Issue 11
Gluon saturation and Feynman scaling in leading neutron production
journal, January 2016
- Carvalho, F.; Gonçalves, V. P.; Spiering, D.
- Physics Letters B, Vol. 752
Experimental determination of the π meson structure functions by the Drell-Yan mechanism
journal, December 1983
- Badier, J.; Boucrot, J.; Bourotte, J.
- Zeitschrift für Physik C Particles and Fields, Vol. 18, Issue 4
Observation of anomalous scaling violation in muon pair production by 194 GeV/c π−-tungsten interactions
journal, March 1985
- Betev, B.; Blaising, J. J.; Bordalo, P.
- Zeitschrift für Physik C Particles and Fields, Vol. 28, Issue 1
Experimental study of muon pairs produced by 252-GeV pions on tungsten
journal, January 1989
- Conway, J. S.; Adolphsen, C. E.; Alexander, J. P.
- Physical Review D, Vol. 39, Issue 1
Phenomenology of forward hadrons in deep inelastic scattering: Fracture functions and its evolution
journal, July 1997
- de Florian, D.; Sassot, R.
- Physical Review D, Vol. 56, Issue 1
Parton momentum and helicity distributions in the nucleon
journal, August 2013
- Jimenez-Delgado, P.; Melnitchouk, W.; Owens, J. F.
- Journal of Physics G: Nuclear and Particle Physics, Vol. 40, Issue 9
Progress in the Determination of the Partonic Structure of the Proton
journal, October 2013
- Forte, Stefano; Watt, Graeme
- Annual Review of Nuclear and Particle Science, Vol. 63, Issue 1
Theory of Deep-Inelastic Lepton-Nucleon Scattering and Lepton-Pair Annihilation Processes. I
journal, November 1969
- Drell, Sidney D.; Levy, Donald J.; Yan, Tung-Mow
- Physical Review, Vol. 187, Issue 5
Anatomy of relativistic pion loop corrections to the electromagnetic nucleon coupling
journal, October 2013
- Ji, Chueng-Ryong; Melnitchouk, W.; Thomas, A. W.
- Physical Review D, Vol. 88, Issue 7
The pion nucleon coupling constant
journal, March 2004
- Bugg, D. V.
- The European Physical Journal C, Vol. 33, Issue 4
Dynamics of light antiquarks in the proton
journal, December 1998
- Melnitchouk, W.; Speth, J.; Thomas, A. W.
- Physical Review D, Vol. 59, Issue 1
Flavor asymmetry of antiquark distributions in the nucleon
journal, September 1998
- Kumano, S.
- Physics Reports, Vol. 303, Issue 4
SU(3) baryon chiral perturbation theory and long distance regularization
journal, January 1999
- Donoghue, John F.; Holstein, Barry R.; Borasoy, Buḡra
- Physical Review D, Vol. 59, Issue 3
Leading quenching effects in the proton magnetic moment
journal, January 2005
- Young, R. D.; Leinweber, D. B.; Thomas, A. W.
- Physical Review D, Vol. 71, Issue 1
On the Invariant Regularization in Relativistic Quantum Theory
journal, July 1949
- Pauli, W.; Villars, F.
- Reviews of Modern Physics, Vol. 21, Issue 3
Peripheral structure of nucleons when probing with highQ 2 photons
journal, September 1992
- Zoller, V. R.
- Zeitschrift für Physik C Particles and Fields, Vol. 53, Issue 3
Flavour and spin of the proton and the meson cloud
journal, January 1996
- Holtmann, H.; Szczurek, A.; Speth, J.
- Nuclear Physics A, Vol. 596, Issue 3-4
Role of vector mesons in high- lepton-nucleon scattering
journal, May 1993
- Melnitchouk, W.; Thomas, A. W.
- Physical Review D, Vol. 47, Issue 9
Constraints on isospin breaking in the light quark sea from the Drell-Yan process
journal, March 1991
- Ellis, S. D.; Stirling, W. J.
- Physics Letters B, Vol. 256, Issue 2
Constructing Parton Convolution in Effective Field Theory
journal, September 2001
- Chen, Jiunn-Wei; Ji, Xiangdong
- Physical Review Letters, Vol. 87, Issue 15
Erratum: Constructing Parton Convolution in Effective Field Theory [Phys. Rev. Lett. 87, 152002 (2001)]
journal, May 2002
- Chen, Jiunn-Wei; Ji, Xiangdong
- Physical Review Letters, Vol. 88, Issue 24
Nuclear effects in deep inelastic lepton scattering
journal, February 1985
- Smith, C. H. Llewellyn
- Nuclear Physics A, Vol. 434
Deep-inelastic scattering from off-shell nucleons
journal, February 1994
- Melnitchouk, W.; Schreiber, A. W.; Thomas, A. W.
- Physical Review D, Vol. 49, Issue 3
Parton distributions for the pion extracted from Drell-Yan and prompt photon experiments
journal, April 1992
- Sutton, P. J.; Martin, A. D.; Roberts, R. G.
- Physical Review D, Vol. 45, Issue 7
Soft-Gluon Resummation and the Valence Parton Distribution Function of the Pion
journal, December 2010
- Aicher, Matthias; Schäfer, Andreas; Vogelsang, Werner
- Physical Review Letters, Vol. 105, Issue 25
Pion structure function in the Nambu and Jona-Lasinio model
journal, July 1993
- Shigetani, T.; Suzuki, K.; Toki, H.
- Physics Letters B, Vol. 308, Issue 3-4
Generalized relativistic meson wave function
journal, April 1994
- Szczepaniak, Adam; Ji, Chueng-Ryong; Cotanch, Stephen R.
- Physical Review D, Vol. 49, Issue 7
Pion Form Factor
journal, July 1979
- Farrar, Glennys R.; Jackson, Darrell R.
- Physical Review Letters, Vol. 43, Issue 4
Nucleon and pion distribution functions in the valence region
journal, October 2010
- Holt, Roy J.; Roberts, Craig D.
- Reviews of Modern Physics, Vol. 82, Issue 4
Pion parton distribution function in the valence region
journal, December 2005
- Wijesooriya, K.; Reimer, P. E.; Holt, R. J.
- Physical Review C, Vol. 72, Issue 6
Skyrme-model form factor and nucleon-nucleon interaction
journal, March 1997
- Holzwarth, G.; Machleidt, R.
- Physical Review C, Vol. 55, Issue 3
Skyrme model πNN form factor and the sea quark distribution of the nucleon
journal, June 1998
- Fries, R.; Schäfer, A.
- Physical Review C, Vol. 57, Issue 6
Photoproduction with a leading proton at HERA
journal, December 2001
- Adloff, C.; Andreev, V.; Andrieu, B.
- Nuclear Physics B, Vol. 619, Issue 1-3
Q2-dependent parametrizations of parton distribution functions
journal, July 1984
- Duke, D.; Owens, J.
- Physical Review D, Vol. 30, Issue 1
Pionic parton distributions
journal, December 1992
- Glück, M.; Reya, E.; Vogt, A.
- Zeitschrift für Physik C Particles and Fields, Vol. 53, Issue 4
Mesonic parton densities derived from constituent quark model constraints
journal, March 1998
- Glück, M.; Reya, E.; Stratmann, M.
- The European Physical Journal C, Vol. 2, Issue 1
Measurement of the Neutron Structure Function via Spectator Tagging with CLAS
journal, April 2012
- Baillie, N.; Tkachenko, S.; Zhang, J.
- Physical Review Letters, Vol. 108, Issue 14
Measurement of the structure function of the nearly free neutron using spectator tagging in inelastic ( , ) scattering with CLAS
journal, April 2014
- Tkachenko, S.; Baillie, N.; Kuhn, S. E.
- Physical Review C, Vol. 89, Issue 4
Observations on the Tracks of Slow Mesons in Photographic Emulsions
journal, October 1947
- Lattes, C. M. G.; Occhialini, G. P. S.; Powell, C. F.
- Nature, Vol. 160, Issue 4067
Photoproduction with a Leading Proton at hera
conference, January 2012
- Hiller, K.
- Proceedings of the 9th International Workshop, Deep Inelastic Scattering
Reevaluation of the Gottfried sum
text, January 1994
- Arneodo, M.; Arvidson, A.; Badelek, B.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
The Nucleon-Nucleon Interaction
journal, January 1978
- de Swart, J. J.; Nagels, M. M.
- Fortschritte der Physik, Vol. 26, Issue 4
Chiral Extrapolation of Lattice Moments of Proton Quark Distributions
text, January 2001
- Detmold, W.; Melnitchouk, W.; Negele, J. W.
- The American Physical Society
Constructing Parton Convolution in Effective Field Theory
text, January 2001
- Chen, Jiunn-Wei; Ji, Xiangdong
- The American Physical Society
Measurement of leading neutron production in deep-inelastic scattering at HERA
text, January 2010
- Collaboration, H1; Aaron, Francise D.; Grab, Christophorus
- ETH Zurich
Parton momentum and helicity distributions in the nucleon
text, January 2013
- Jimenez-Delgado, P.; Melnitchouk, W.; Owens, J. F.
- arXiv
Chiral extrapolation of lattice moments of proton quark distributions
text, January 2001
- Detmold, W.; Melnitchouk, W.; Negele, J. W.
- arXiv
Leading Quenching Effects in the Proton Magnetic Moment
text, January 2004
- Young, R. D.; Leinweber, D. B.; Thomas, A. W.
- arXiv
Dynamical Symmetry Breaking in the Sea of the Nucleon
text, January 2000
- Thomas, A. W.; Melnitchouk, W.; Steffens, F. M.
- arXiv
Is the Sullivan Process Compatible with QCD Chiral Dynamics?
text, January 2001
- Chen, Jiunn-Wei; Ji, Xiangdong
- arXiv
Generalized Relativistic Meson Wave Function
text, January 1993
- Szczepaniak, A.; Ji, C-R.; Cotanch, S. R.
- arXiv
Pion Structure Function in the Nambu and Jona-Lasinio model
text, January 1994
- Shigetani, T.; Suzuki, K.; Toki, H.
- arXiv
Mesonic Parton Densities Derived From Constituent Quark Model Constraints
text, January 1997
- Gluck, M.; Reya, E.; Stratmann, M.
- arXiv
The Skyrme Model piNN Form Factor and the Sea Quark Distribution of the Nucleon
text, January 1998
- Fries, R. J.; Schaefer, A.
- arXiv
Dynamics of Light Antiquarks in the Proton
text, January 1998
- Melnitchouk, W.; Speth, J.; Thomas, A. W.
- arXiv
Flavor Asymmetry of Light Quarks in the Nucleon Sea
text, January 2001
- Garvey, Gerald T.; Peng, Jen-Chieh
- arXiv
Chiral Corrections to Matrix Elements of Twist-2 Operators
text, January 2001
- Arndt, Daniel; Savage, Martin J.
- arXiv
Chiral Perturbation Theory and the first moments of the Generalized Parton Distriputions in a Nucleon
text, January 2007
- Dorati, Marina; Gail, Tobias A.; Hemmert, Thomas R.
- arXiv
Role of Vector Mesons in High-Q^2 Lepton-Nucleon Scattering
text, January 1993
- Melnitchouk, W.; Thomas, A. W.
- arXiv
Measurement of leading neutron production in deep-inelastic scattering at HERA
text, January 2010
- Collaboration, H1; Egli, S.; Grab, C.
- Springer
Works referencing / citing this record:
Chiral Corrections to Baryon Electromagnetic Form Factors
journal, August 2018
- Perry, Robert J.; Carrillo-Serrano, Manuel E.; Thomas, Anthony W.
- Few-Body Systems, Vol. 59, Issue 6
Drawing insights from pion parton distributions
journal, March 2020
- Ding, Minghui; Raya, Khépani; Binosi, Daniele
- Chinese Physics C, Vol. 44, Issue 3
Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
journal, November 2019
- Salamu, Y.; Ji, Chueng-Ryong; Melnitchouk, W.
- Physical Review D, Vol. 100, Issue 9
Symmetry, symmetry breaking, and pion parton distributions
journal, March 2020
- Ding, Minghui; Raya, Khépani; Binosi, Daniele
- Physical Review D, Vol. 101, Issue 5
Valence-quark distribution functions in the kaon and pion
journal, April 2016
- Chen, Chen; Chang, Lei; Roberts, Craig D.
- Physical Review D, Vol. 93, Issue 7
Pion and kaon valence-quark parton quasidistributions
journal, May 2018
- Xu, Shu-Sheng; Chang, Lei; Roberts, Craig D.
- Physical Review D, Vol. 97, Issue 9
First Monte Carlo Global QCD Analysis of Pion Parton Distributions
journal, October 2018
- Barry, P. C.; Sato, N.; Melnitchouk, W.
- Physical Review Letters, Vol. 121, Issue 15
Pion and kaon structure at the electron-ion collider
journal, October 2019
- Aguilar, Arlene C.; Ahmed, Zafir; Aidala, Christine
- The European Physical Journal A, Vol. 55, Issue 10
Chiral Corrections to Baryon Electromagnetic Form Factors
text, January 2017
- Perry, Robert J.; Carrillo-Serrano, Manuel E.; Thomas, Anthony W.
- arXiv
Symmetry, symmetry breaking, and pion parton distributions
text, January 2019
- Ding, Minghui; Raya, Khepani; Binosi, Daniele
- arXiv
Pion and Kaon Structure at the Electron-Ion Collider
text, January 2019
- Aguilar, Arlene C.; Ahmed, Zafir; Aidala, Christine
- arXiv