Sensitivity of the chiral phase transition of QCD to the scalar meson sector
Abstract
Gribov's theory of light quark confinement implies the existence of two kinds of scalar bound states. The phase diagram of the three-flavor QCD is mapped out in the (mpi-mK)-plane with help of the SUL(3)xSUR(3) linear sigma model supplemented with the assumption that the masses of the so-called superbound scalars do not change under the variation of the pion and kaon mass. The phase boundary along the mpi=mK line is found in the interval 15 MeV<mcrit<25 MeV, irrespective which f0-sigma linear combination is identified with the pure superbound state.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.