Octet baryon electromagnetic form factors in nuclear medium

Abstract

We study the octet baryon electromagnetic form factors in nuclear matter using the covariant spectator quark model extended to the nuclear matter regime. The parameters of the model in vacuum are fixed by the study of the octet baryon electromagnetic form factors. In nuclear matter the changes in hadron properties are calculated by including the relevant hadron masses and the modification of the pion-baryon coupling constants calculated in the quark-meson coupling model. In nuclear matter the magnetic form factors of the octet baryons are enhanced in the low $Q^2$ region, while the electric form factors show a more rapid variation with $Q^2$. The results are compared with the modification of the bound proton electromagnetic form factors observed at Jefferson Lab. In addition, the corresponding changes for the bound neutron are predicted.

Version accepted for publication in J.Phys. G. Few changes. 40 pages, 14 figures and 8 tables

References in corpus (96)

• Chiral Dynamics in Nucleons and Nuclei
• The ratio of proton's electric to magnetic form factors measured by polarization transfer
• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Nucleon Electromagnetic Form Factors
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• The role of nucleon structure in finite nuclei
• Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q^2 = 8.5 GeV^2
• Nucleon and hadron structure changes in the nuclear medium and impact on observables
• High Precision Measurement of the Proton Elastic Form Factor Ratio ${\mu }_p{G}_E/G_M$ at low $Q^2$
• Precise Neutron Magnetic Form Factors
• The Charge Form Factor of the Neutron from the Reaction \pol{2H}(\pol{e},e'n)p
• A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e^{\prime }n)p$ at $Q^2=0.5$ (GeV/c)${}^2$
• Measurements of GEn/GMn from the ^2H(vec{e},e'vec{n})^1H Reaction to Q^2=1.45 (GeV/c)^2
• Measurement of the Electric Form Factor of the Neutron at Q^2=0.5 and 1.0 (GeV/c)^2
• Charmed Mesic Nuclei: Bound D and $\bar{D}$ states with ^{208}Pb
• Variation of hadron masses in finite nuclei
• Self-consistent description of finite nuclei based on a relativistic quark model
• Light Front Cloudy Bag Model: Nucleon Electromagnetic Form Factors
• Precise determination of the strangeness magnetic moment of the nucleon
• Chiral Perturbation Theory Analysis of the Baryon Magnetic Moments
• Measurement of the Electric Form Factor of the Neutron at Q^2 = 0.3-0.8 (GeV/c)^2
• Polarization Transfer in the ^4He(\vec e,e'\vec p)^3H Reaction up to Q^2 = 2.6 (GeV/c)^2
• Measurements of the Electric Form Factor of the Neutron up to Q2=3.4 GeV2 using the Reaction He3(e,e'n)pp
• Leading SU(3)-breaking corrections to the baryon magnetic moments in Chiral Perturbation Theory
• Polarization transfer in the ${}^4$He$(\vec{e},e^{\prime }{\vec{p}}^3$H reaction
• Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
• The quark-meson coupling model for Lambda, Sigma and Xi hypernuclei
• Neutron charge form factor at large $q^2$
• Baryon magnetic moments in chiral perturbation theory
• Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2
• Precision Electromagnetic Structure of Octet Baryons in the Chiral Regime
• A Precise Measurement of the Neutron Magnetic Form Factor GMn in the Few-GeV2 Region
• Nucleon Magnetic Moments Beyond the Perturbative Chiral Regime
• Binding of Hypernuclei in the Latest Quark-Meson Coupling Model
• Are eta- and omega-nuclear states bound ?
• The nucleon electromagnetic form factors from Lattice QCD
• In-medium kaon and antikaon properties in the quark-meson coupling model
• Measurements of the neutron electric to magnetic form factor ratio GEn/GMn via the ^2H(\vec{e},e'\vec{n})^1H reaction to Q^2 = 1.45 (GeV/c)^2
• Electromagnetic Form Factors of the Nucleon in an Improved Quark Model
• In-medium electron-nucleon scattering
• Quaiselastic scattering from relativistic bound nucleons: Transverse-Longitudinal response
• Electromagnetic form factors of the bound nucleon
• Nucleon Electromagnetic Form Factors from Lattice QCD using 2+1 Flavor Domain Wall Fermions on Fine Lattices and Chiral Perturbation Theory
• A pure S-wave covariant model for the nucleon
• Nucleon electromagnetic form factors in twisted mass lattice QCD
• J/Psi mass shift in nuclear matter
• Analysis of factorization in (e,e'p) reactions: A survey of the relativistic plane wave impulse approximation
• D-state effects in the electromagnetic N-Delta transition
• Measurement of the Sigma^- Charge Radius by Sigma^- Electron Elastic Scattering
• Leading Quenching Effects in the Proton Magnetic Moment
• A Covariant model for the nucleon and the $\Delta$
• A relativistic quark model for the Omega- electromagnetic form factors
• Properties of charmed and bottom hadrons in nuclear matter: A plausible study
• Nucleon form factors and spin content in a quark-diquark model with a pion cloud
• Electric quadrupole and magnetic octupole moments of the Delta
• Novel features of $J/\Psi$ dissociation in matter
• Dirac and Pauli form factors from lattice QCD
• Valence quark contribution for the gamma N -> Delta quadrupole transition extracted from lattice QCD
• Valence quark contributions for the gamma N -> P11(1440) form factors
• Chiral extrapolation of octet-baryon charge radii
• $J/\Psi$-nuclear bound states
• ${\Lambda }_c^{+}$- and ${\Lambda }_b$-hypernuclei
• Relativistic nuclear structure effects in (e,e' vec{p})
• Electromagnetic form factors of the Delta with D-waves
• A covariant model for the gamma N -> N(1535) transition at high momentum transfer
• Timelike gamma* N -> Delta form factors and Delta Dalitz decay
• ${\Lambda }_c^{+}$, ${\Sigma }_c$, ${\Xi }_c$ and ${\Lambda }_b$ hypernuclei in the quark-meson coupling model
• Baryon Octet magnetic moments in $\chi$PT: More on the importance of the Decuplet
• Octet baryon electromagnetic form factors in a relativistic quark model
• Polarization transfer in ${}^4$He$(\vec{e},e^{\prime }\vec{p})$${}^3$H: is the ratio $G_{Ep}/G_{Mp}$ modified in medium ?
• On the pion cloud of the nucleon
• Electromagnetic form factors of the baryon octet in the perturbative chiral quark model
• Baryon form factors
• Phenomenological quark model for baryon magnetic moments and beta decay ratios ($G_A/G_V$)
• Strange Baryon Electromagnetic Form Factors and SU(3) Flavor Symmetry Breaking
• Chiral solitons in nuclei: Electromagnetic form factors
• A precise extraction of the induced polarization in the 4He(e,e'p)3H reaction
• Covariant nucleon wave function with S, D, and P-state components
• In-Medium Chiral Perturbation Theory and Pion Weak Decay in the Presence of Background Matter
• Using baryon octet magnetic moments and masses to fix the pion cloud contribution
• Extracting the Omega- electric quadrupole moment from lattice QCD data
• Valence quark and meson cloud contributions for the gamma* Lambda -> Lambda* and gamma* Sigma0 -> Lambda* reactions
• Neutron Properties in the Medium
• Fixed-axis polarization states: covariance and comparisons
• A simple relation between the gamma N -> N(1535) helicity amplitudes
• Medium modifications of nucleon electromagnetic form factors
• Chiral extrapolations for nucleon magnetic moments
• Properties of charmed and bottom hadrons in nuclear medium: Results for ${\Lambda }_c^{+}$ and ${\Lambda }_b$ hypernuclei
• The neutron charge form factor in helium-3
• Spin and angular momentum in the nucleon
• Effect of the bound nucleon form factors on charged-current neutrino-nucleus scattering
• Comparison of Nucleon Form Factors from Lattice QCD Against the Light Front Cloudy Bag Model and Extrapolation to the Physical Mass Regime
• Photoproduction of hypernuclei within the quark-meson coupling model
• Magnetic moment of hyperons in nuclear matter by using quark-meson coupling models
• Production of cascade hypernuclei via the (K-,K+) reaction within a quark-meson coupling model
• Polarization transfer in 4He(\vec{e},e'\vec{p}) and 16O(\vec{e},e'\vec{p}) in a relativistic Glauber model

Cited by in corpus (43)

• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV
• The electromagnetic form factors of $\Lambda$ hyperon in the vector meson dominance model
• Octet to decuplet electromagnetic transition in a relativistic quark model
• Electromagnetic Transition Form Factors of Baryon Resonances
• Hyperon electromagnetic timelike elastic form factors at large $q^2$
• What is the role of the meson cloud in the ${\Sigma }^{\ast 0}\to \gamma \Lambda$ and ${\Sigma }^{\ast }\to \gamma \Sigma$ decays?
• Valence quark and meson cloud contributions to the ${\gamma }^{\ast }N\to N^{\ast }(1520)$ form factors
• Axial form factors of the octet baryons in a covariant quark model
• Electroweak properties of pions in a nuclear medium
• ${\gamma }^{\ast }N\to N^{\ast }(1520)$ form factors in the timelike regime
• Covariant spectator quark model description of the ${\gamma }^{\ast }\Lambda \to {\Sigma }^0$ transition
• Baryon Octet Electromagnetic Form Factors in a confining NJL model
• Using the Single Quark Transition Model to predict nucleon resonance amplitudes
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Semirelativistic approximation to the ${\gamma }^{\ast }N\to N(1520)$ and ${\gamma }^{\ast }N\to N(1535)$ transition form factors
• Valence quark contributions for the ${\gamma }^{\ast }N\to N(1440)$ form factors from Light-Front holography
• Hyperon elastic electromagnetic form factors in the space-like momentum region
• $N^{\ast }$ Form Factors based on a Covariant Quark Model
• Electromagnetic form factors of the ${\Omega }^{-}$ baryon in the spacelike and timelike regions
• Covariant model for the Dalitz decay of the $N(1535)$ resonance
• Meson cloud contributions to baryon axial form factors
• Determination of the ${\Sigma }^{+}$ Timelike Electromagnetic Form Factors
• Nuclear medium meson structures from the Schwinger proper-time Nambu--Jona-Lasinio model
• Study of baryon octet electromagnetic form factors in perturbative chiral quark model
• Magnetic moments of the octet, decuplet, low-lying charm, and low-lying bottom baryons in a nuclear medium
• A covariant model for the decuplet to octet Dalitz decays
• Study of the in-medium nucleon electromagnetic form factors using a light-front nucleon wave function combined with the quark-meson coupling model
• Octet baryon electromagnetic form factor double ratios $(G_E^{\ast }/G_M^{\ast })/(G_E/G_M)$ in a nuclear medium
• Electromagnetic form factors of octet baryons in QCD
• Electromagnetic $|G_E/G_M|$ ratios of hyperons at large timelike $q^2$
• Holographic estimate of the meson cloud contribution to nucleon axial form factor
• Electromagnetic form factors of ${\Sigma }^{+}$ and ${\Sigma }^{-}$ in the vector meson dominance model
• Weak interaction axial form factors of the octet baryons in nuclear medium
• In-medium electromagnetic form factors of pseudoscalar mesons from the quark model
• Electroweak form factors of baryons in dense nuclear matter
• Analysis of excited quark propagator effects on neutron charge form factor
• Quark model calculations of transition form factors at high photon virtualities
• A covariant model for the ${\gamma }^{\ast }N\to N^{\ast }(1520)$ reaction
• A covariant model for the negative parity resonances of the nucleon
• Octet baryon electroweak form factors in dense nuclear matter
• A Relativistic Model for the Electromagnetic Structure of Baryons from the 3rd Resonance Region
• Electric and magnetic timelike form factors of hyperons at large transfer momentum