Организаторы
Evening session 10: Chiral Symmetry Breaking in Hadron Physics
- Roman Rogalyov (Logunov IHEP NRC KI)
State-of-the-art lattice QCD studies of hot and dense strongly interacting matter currently rely on extrapolation from zero or imaginary chemical potentials. The ill-posedness of numerical analytic continuation puts severe limitations on the reliability of such methods. We performed simulations of the QCD chiral transition at finite real baryon density with the more direct sign reweighting...
In this contribution I consider masses of chiral partners in the context of the chiral symmetry restoration at finite temperature. Using an effective quark model I first review the common situation where two mesonic chiral partners become nearly degenerate when temperature is increased above the chiral restoration one. Then I turn to an effective hadron theory for describing charm mesons where...
Chiral effective field theory is been advanced to a precision tool for analyzing low-energy few-nucleon dynamics. I will outline the foundations of this theoretical framework and discuss our recent and ongoing precision studies of the electromagnetic structure of light nuclei.
I present an overview about chiralspin symmetry and its relation with confinement and the deconfined phase of QCD, as well as its chirally restored phase. I focus on high temperature QCD and some interesting “truncated” lattice studies, proposing an alternative chiralspin group which would be worth to check at high temperature QCD.
This talk is intended as an introduction to the application of chiral effective field theory to lattice simulations of nuclear systems. I present work by the Nuclear Lattice Effective Field Theory Collaboration studying the connection between microscopic nuclear forces and nuclear structure and reactions. I also describe recent results calculating nuclear thermodynamics and the phase diagram...
We study the vacuum properties of hybrids by using the so-called extended Linear Sigma Model (eLSM). This model includes scalar and pseudoscalar mesons, as well as vector and axial-vector mesons. We enlarge the eLSM by including the low-lying hybrid nonet with exotic quantum numbers $J^{P C} = 1^{−+}$ and the nonet of their chiral partners with $J^{P C} = 1^{+−}$ to a global $U(3)_r\times...
