Neutron Properties in the Medium

Abstract

We demonstrate that for small values of momentum transfer, Q^2, the in-medium change of the G_E/G_M form factor ratio for a bound neutron is dominated by the change in the electric charge radius and predict in a model independent manner that the in-medium ratio will increase relative to the free result. This effect will act to increase the predicted cross-section for the neutron recoil polarization transfer process 4He(e,e'n)3He. This is in contrast to medium modification effects on the proton G_E/G_M from factor ratio, which act to decrease the predicted cross-section for the 4He(e,e'p)3H reaction. Experiments to measure the in-medium neutron form factors via neutron knockout reactions are currently feasible in the range 0.1 < Q^2 < 1 GeV^2.

4 pages, 1 figure

References in corpus (25)

• Impact Parameter Space Interpretation for Generalized Parton Distributions
• Generalized parton distributions in impact parameter space
• Charge Density of the Neutron
• Nuclear Deep-Inelastic Lepton Scattering and Coherence Phenomena
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• Impact Parameter Dependent Parton Distributions and Transverse Single Spin Asymmetries
• Polarization Transfer in the ^4He(\vec e,e'\vec p)^3H Reaction up to Q^2 = 2.6 (GeV/c)^2
• Charge Symmetry Breaking and QCD
• Polarization transfer in the ${}^4$He$(\vec{e},e^{\prime }{\vec{p}}^3$H reaction
• Empirical transverse charge densities in the nucleon and the nucleon-to-$\Delta$ transition
• Spin-dependent structure functions in nuclear matter and the polarized EMC effect
• In-medium electron-nucleon scattering
• Electromagnetic form factors of the bound nucleon
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• Is the Coulomb sum rule violated in nuclei?
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• The Proton Elastic Form Factor Ratio at Low Momentum Transfer
• On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect
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• Proton Electromagnetic Form Factor Ratios at Low Q^2
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• A relativistic Glauber approach to polarization transfer in 4He(\vec{e},e'\vec{p})

Cited by in corpus (18)

• Nucleon-Nucleon Correlations, Short-lived Excitations, and the Quarks Within
• Octet baryon electromagnetic form factors in nuclear medium
• Transition between nuclear and quark-gluon descriptions of hadrons and light nuclei
• Natural Resolution of the Proton Size Puzzle
• Relativistic and Nuclear Medium Effects on the Coulomb Sum Rule
• Electroweak properties of pions in a nuclear medium
• Valence-quark distributions of pions and kaons in a nuclear medium
• Asymmetry in the neutrino and anti-neutrino reactions in a nuclear medium
• Impact of medium modification of the nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matter
• 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
• Modification of generalized vector form factors and transverse charge densities of the nucleon in nuclear matter
• Nuclear Density Dependence of In-Medium Polarization
• Electroweak properties of kaons in a nuclear medium
• Weak interaction axial form factors of the octet baryons in nuclear medium
• Transverse charge densities in the nucleon in nuclear matter
• Electroweak form factors of baryons in dense nuclear matter
• Neutrino propagation in the neutron star with uncertainties from nuclear, hadron, and particle physics