Where the Nuclear Pions are

Abstract

Three recent experiments, which looked at pionic effects in nuclei have concluded that there are no excess pions. This puts into serious question the conventional meson-exchange picture of the nucleon-nucleon interaction. Based on arguments of partial restoration of chiral symmetry with density we propose a resolution to this problem.

24 pages, Stony Brook preprint SUNY-NTG-94-54

References in corpus (1)

• Model for the Quasifree Polarization-Transfer Measurements in the (p,n) reaction at 495 MeV

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• Distorted wave impulse approximation analysis for spin observables in nucleon quasi-elastic scattering and enhancement of the spin-longitudinal response
• Nuclear Saturation with in-Medium Meson Exchange Interactions
• Microscopic calculations of medium effects for 200-MeV (p,p') reactions
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• Pions in the nuclear medium and Drell-Yan scattering
• Photon Rates for Heavy-Ion Collisions from Hidden Local Symmetry
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• The Two-Pion Exchange NN-Potential in Nuclear Matter and Nuclear Stability
• The role of the pion cloud in the interpretation of the valence light-cone wavefunction of the nucleon
• Nuclear medium effects in Drell-Yan process
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• $\rho$-mass Modification in $H{e}^3$ - a Signal of Restoration of Chiral Symmetry or Test for Nuclear Matter Models ?
• The Single Particle Sum Rules in the Deep-Inelastic Region
• $\rho$ - nucleus bound states in Walecka model
• Parton fluxes and virtual pions in heavy nuclei