Baryonic susceptibilities, quark-diquark models, and quark-hadron duality at finite temperature
arXiv:1812.09365 · doi:10.1103/PhysRevD.99.074020
Abstract
Fluctuations of conserved charges such as baryon number, electric charge and strangeness may provide a test for completeness of states in lattice QCD for three light flavors. We elaborate on the idea that the corresponding susceptibilities can be saturated with excited baryonic states with an underlying quark-diquark structure with a linearly confining interaction. Using Polyakov-loop correlators we show that in the static limit, the quark-diquark potential coincides with the quark-antiquark potential in marked agreement with recent lattice studies. We thus study in a quark-diquark model the baryonic fluctuations of electric charge, baryon number and strangeness: , and ; by considering a realization of the hadron resonance gas model in the light flavor sector of QCD. These results have been obtained by using the baryon spectrum computed within a relativistic quark-diquark model, leading to an overall good agreement with the spectrum obtained with other quark models and with lattice data for the fluctuations.
arXiv comment17 pages, 13 figures, 1 table; v2 typos corrected, added Fig. 12 and comments in Sec. V-C and in the conclusions. It matches the version published in Physical Review D
References in corpus (29)
- The equation of state in (2+1)-flavor QCD
- Full result for the QCD equation of state with 2+1 flavors
- Exotica
- Fluctuations of conserved charges at finite temperature from lattice QCD
- Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
- Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model
- Fluctuations and correlations in high temperature QCD
- Higher order fluctuations and correlations of conserved charges from lattice QCD
- The Flavor Structure of the Excited Baryon Spectra from Lattice QCD
- An interacting quark-diquark model of baryons
- The QCD phase diagram: A comparison of lattice and hadron resonance gas model calculations
- Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction
- Evidence for diquarks in lattice QCD
- Strange and nonstrange baryon spectra in the relativistic interacting quark-diquark model with a Gürsey and Radicati-inspired exchange interaction
- Update of the Hagedorn mass spectrum
- On light baryons and their excitations
- Issues and Opportunities in Exotic Hadrons
- Different Hagedorn temperatures for mesons and baryons from experimental mass spectra, compound hadrons, and combinatorial saturation
- Relativistic resonances: Their masses, widths, lifetimes, superposition, and causal evolution
- Comparison of gluon flux-tube distributions for quark-diquark and quark-antiquark hadrons
- Precise determination of the three-quark potential in SU(3) lattice gauge theory
- Diquark effects in light baryon correlators from lattice QCD
- Relativistic quark-diquark model of baryons with a spin-isospin transition interaction
- Quark Hadron Duality at Finite Temperature
- Dimension-2 condensates, zeta-regularization and large-Nc Regge Models
- The Y-stringlike behavior of a static hadron at finite T
- The Polyakov loop in various representations in the confined phase of QCD
- Regge trajectories of Excited Baryons, quark-diquark models and quark-hadron duality
- Semiclassical expansions up to -order in relativistic nuclear physics