Baryonic Correlation Functions in the Random Instanton Vacuum

Abstract

We study baryon and diquark correlation functions in the framework of an instanton model for the QCD vacuum. The model naturally accomodates a light scalar diquark. As a consequence, the correlation functions for the nucleon and delta are found to be qualitatively different. Using a complete set of all available correlation functions we determine masses and coupling constants for these particles. We compare our results with predictions from QCD sum rules and recent lattice measurement of point-to-point correlators.

31 pages (LaTex), figures can be obtained directly from the authors

References in corpus (4)

• Mesonic Correlation Functions in the Random Instanton Vacuum
• Baryonic currents and their correlators in the Heavy Quark Effective Theory
• Lattice Calculation of Point-to-Point Hadron Current Correlation
• Quark Propagation in the Random Instanton Vacuum

Cited by in corpus (102)

• Instantons in QCD
• Diquark Bose Condensates in High Density Matter and Instantons
• New Charmonium States in QCD Sum Rules: a Concise Review
• Instantons at work
• Screening of the topological charge in a correlated instanton vacuum
• High Density QCD and Instantons
• 50 Years of Quantum Chromodynamics
• Evidence for the Role of Instantons in Hadron Structure from Lattice QCD
• QCD Sum Rules for Skeptics
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Symmetries and spectrum of SU(2) Lattice Gauge Theory at finite chemical potential
• Hadronic matrix elements of gluon operators in the instanton vacuum
• Weinberg-Type Sum Rules at Zero and Finite Temperature
• Spontaneous generation of local CP violation and inverse magnetic catalysis
• Instantons, the QCD Vacuum, and Hadronic Physics
• A schematic model for pentaquarks based on diquarks
• Strange and nonstrange baryon spectra in the relativistic interacting quark-diquark model with a Gürsey and Radicati-inspired exchange interaction
• Diquark Masses from Lattice QCD
• Glueballs and Instantons
• Nucleon Properties from Unconventional Interpolating Fields
• Mesonic Correlation Functions in the Random Instanton Vacuum
• S-Matrix Unitarity, Impact Parameter Profiles, Gluon Saturation and High-Energy Scattering
• The instanton liquid in QCD at zero and finite temperature
• Diquark correlations in baryon spectroscopy and holographic QCD
• The Chiral Phase Transition and Instanton Anti-instanton Molecules
• Analysis of the scalar and axial-vector heavy diquark states with QCD sum rules
• D_s (2317) as a four-quark state in QCD sum rules
• The \bar q q Bound States and Instanton Molecule at T >~ T_c
• An SU(2) KvBLL caloron gas model and confinement
• The Sigma_c and Lamda_c magnetic moments from QCD spectral sum rules
• Quark Propagation in the Random Instanton Vacuum
• Analysis of the light-flavor scalar and axial-vector diquark states with QCD sum rules
• Chiral phase transition and Anderson localization in the Instanton Liquid Model for QCD
• X(1835) as a baryonium state with QCD sum rules
• Evidence of Instanton Effects in Hadrons from the Study of Low Eigenfunctions of the Dirac Operator
• Tetraquarks in large-$N_c$ QCD
• Hadronic Correlation Functions in the Interacting Instanton Liquid
• Instanton size distribution: repulsion or the infrared fixed point?
• Predicative Ability of QCD Sum Rules for Decuplet Baryons
• The Instanton Density at Finite Temperatures
• Nucleon Structure and High Energy Scattering
• Chiral Symmetry Breaking on the Lattice
• Foundations of the Constituent Quark Model
• Baryon structure in a quark-confining non-local NJL model
• Diquark effects in light baryon correlators from lattice QCD
• Testing QCD Sum Rule Techniques on the Lattice
• Are There Diquarks in the Nucleon?
• Relativistic quark-diquark model of baryons with a spin-isospin transition interaction
• Diquark Condensation in High Density Baryon Matter
• Diquark Bose-Einstein Condensation and Nuclear Matter
• Instanton induced quark dynamics and the pentaquark
• Spectra of Free Diquark in the Bethe-Salpeter Approach
• A Diquark Chiral Effective Theory and Exotic Baryons
• Baryon form factors in a diquark-quark bound state description
• Chiral Random Matrix Models : Thermodynamics, Phase Transitions and Universality
• History of exotic Meson (4-quark) and Baryon (5-quark) States
• Hadronic Wave Functions in the Instanton Model
• Light scalar tetraquarks from a holographic perspective
• Are there narrow flavor-exotic tetraquarks in large-$N_c$ QCD?
• Triquark correlations and pentaquarks in a QCD sum rule approach
• Comments on Diquarks, Strong Binding and a Large Hidden QCD Scale
• Instantons, diquarks and non-leptonic weak decays of hyperons
• Hadronic structure on the light-front V. Diquarks, Nucleons and multiquark Fock components
• Analysis of the scalar doubly heavy tetraquark states with QCD sum rules
• Is D_s(2700) a charmed tetraquark state ?
• The Nuclear matter stability in a non-local chiral quark model
• Proton Electro-Magnetic Form-Factors in the Instanton Liquid Model
• Glue in hadrons at medium resolution and the QCD instanton vacuum
• Instantons and Scalar Multiquark States: From Small to Large N_c
• Instanton Contribution to the Electro-Magnetic Form Factors of the Nucleon
• Instantons and the Spin of the Nucleon
• Instanton Contribution to the Proton and Neutron Electric Form Factors
• Can hadrons survive the chiral phase transition ?
• Pion electromagnetic formfactor in the instanton vacuum
• The QCD vacuum as a disordered medium: A simplified model for the QCD Dirac operator
• Analysis of the nonet scalar mesons as tetraquark states with new QCD sum rules
• Higher twist corrections to Bjorken sum rule
• Toward dynamical understanding of the diquarks, pentaquarks and dibaryons
• Ground state mass spectrum for scalar diquarks with Bethe-Salpeter equation
• Algebraic Approach to Bare Nucleon Matrix Elements
• Finite-width effects on Delta baryons in QCD Sum Rules
• QCD phases at high density and instantons
• Scalar field in nuclear matter: the roles of spontaneous chiral symmetry breaking and nucleon structure
• The effect of uu diquark suppression in proton splitting in Monte Carlo event generators
• Instanton contributions to the low-lying hadron mass spectrum
• Light Scalar Decay in Diquark Chiral Effective Theory
• Instantons and Meson Correlators in QCD
• Topological zero modes at nonzero chemical potential
• Hadronic Correlation Functions in the Random Instanton-dyon Ensemble
• The Chiral Phase Transition
• Proposal for Topologically Unquenched QCD
• Collins-Soper Kernel in the QCD Instanton Vacuum
• Instanton-Induced Correlations in Hadrons
• From Static Potentials to High-Energy Scattering
• Constituent Quarks, Diquarks and the N-Delta Mass Splitting
• Why is a nucleon bound?
• Analysis of the tensor-tensor type scalar tetraquark states with QCD sum rules
• Application of radial basis functions neutral networks in spectral functions
• Hadronic Correlators and Condensate Fluctuations in QCD Vacuum
• Constituent quark model for baryons with strong quark-pair correlations and non-leptonic weak transitions of hyperon
• Roles of Diquarks in the Nucleon for the Deep Inelastic Scattering and the Non-leptonic Weak Transitions
• QCD at Finite Density and Color Superconductivity