Recent observation of short range nucleon correlations in nuclei and their implications for the structure of nuclei and neutron stars

Abstract

Novel processes probing the decay of nucleus after removal of a nucleon with momentum larger than Fermi momentum by hard probes finally proved unambiguously the evidence for long sought presence of short-range correlations (SRCs) in nuclei. In combination with the analysis of large $Q^2$, A(e,e')X processes at $x>1$ they allow us to conclude that (i) practically all nucleons with momenta $\ge$ 300 MeV/c belong to SRCs, consisting mostly of two nucleons, ii) probability of such SRCs in medium and heavy nuclei is $\sim 25$, iii) a fast removal of such nucleon practically always leads to emission of correlated nucleon with approximately opposite momentum, iv) proton removal from two-nucleon SRCs in 90% of cases is accompanied by a removal of a neutron and only in 10% by a removal of another proton. We explain that observed absolute probabilities and the isospin structure of two nucleon SRCs confirm the important role that tensor forces play in internucleon interactions. We find also that the presence of SRCs requires modifications of the Landau Fermi liquid approach to highly asymmetric nuclear matter and leads to a significantly faster cooling of cold neutron stars with neutrino cooling operational even for $N_p/N_n\le 0.1$. The effect is even stronger for the hyperon stars. Theoretical challenges raised by the discovered dominance of nucleon degrees of freedom in SRCs and important role of the spontaneously broken chiral symmetry in quantum chromodynamics (QCD) in resolving them are considered. We also outline directions for future theoretical and experimental studies of the physics relevant for SRCs.

74 pages. Review article, updated version to be published in International Journal of Modern Physics A

References in corpus (39)

• An accurate nucleon-nucleon potential with charge-independence breaking
• The Physics of Neutron Stars
• Neutron Star Cooling
• Factorization for hard exclusive electroproduction of mesons in QCD
• Probing Cold Dense Nuclear Matter
• Realistic Model of the Nucleon Spectral Function in Few- and Many- Nucleon Systems
• Measurement of 2- and 3-Nucleon Short Range Correlation Probabilities in Nuclei
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Investigation of Proton-Proton Short-Range Correlations via the 12C(e,e'pp) Reaction
• Tensor correlations in the Unitary Correlation Operator Method
• Femtometer Toroidal Structures in Nuclei
• Recent Progress in Neutron Star Theory
• Observation of Nuclear Scaling in the $A(e,e^{\prime })$ Reaction at $x_B>$1
• n-p Short-Range Correlations from (p,2p + n) Measurements
• HERA Collider Physics
• Correlations in Hot Asymmetric Nuclear Matter
• The physics of dense hadronic matter and compact stars
• Feynman Graphs and Generalized Eikonal Approach to High Energy Knock-Out Processes
• Direct measurement of the pion valence quark momentum distribution, the pion light-cone wave function squared
• Hadrons in the Nuclear Medium
• Exclusive Electro-Disintegration of 3He at high Q2: II. Decay Function Formalism
• Selected Topics in High Energy Semi-Exclusive Electro-Nuclear Reactions
• Measurement of Nuclear Transparency for the A(e,e' pi^+) Reaction
• Color Transparency Effects in Electron Deuteron Interactions at Intermediate Q^2
• The electro-disintegration of few body systems revisited
• Measurement of the 3He(e,e'p)pn reaction at high missing energies and momenta
• QCD Rescattering and High Energy Two-Body Photodisintegration of the Deuteron
• Exclusive Electro-Disintegration of 3He at High Q2: I. Generalized Eikonal Approximation
• Ground-state energies, densities and momentum distributions in closed-shell nuclei calculated within a cluster expansion approach and realistic interactions
• A non factorized calculation of the process ^3He(e,e'p)^2H at medium energies
• On the Interpretation of the Processes 3He(e,e'p)2H and 3He(e,e'p)(pn) at High Missing Momenta
• Spin-Momentum Correlations in Quasi-Elastic Electron Scattering from Deuterium
• Hard Photodisintegration of a Proton Pair in 3He
• Sum Rule Description of Color Transparency
• Nuclear Structure Functions in the Large x Large Q^2 Kinematic Region in Neutrino Deep Inelastic Scattering
• Unfactorized versus factorized calculations for ^2H(e,e'p) reactions at GeV energies
• Investigation of the high momentum component of nuclear wave function using hard quasielastic A(p,2p)X reactions
• Role of the Delta (1232) in DIS on polarized ${}^3$He and extraction of the neutron spin structure function $g_1^n(x,Q^2)$

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