An effective Lagrangian is used to compute scalar and pseudoscalar meson masses above Tc in Nf=2+1 QCD and tested against lattice screening masses extracted from chiral susceptibilities for evidence of persistent U(1)A breaking.
The Physics of Instantons in the pseudoscalar and vector meson mixing
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
When the theory of Quantum Chromodynamics was introduced, it was to explain the observed phenomena of quark confinement and scaling. It was then discovered that the emergence of instantons is an essential consequence of this theory. This led to unanticipated explanations not only for the anomalously high masses of the $\eta$ and the $\eta'$ particles, but also for the remarkable differences that had been observed in the mixing angles for the pseudoscalar mesons and the vector mesons.
fields
hep-ph 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
Study of the scalar and pseudoscalar meson mass spectrum above the QCD chiral phase transition, using an effective Lagrangian approach
An effective Lagrangian is used to compute scalar and pseudoscalar meson masses above Tc in Nf=2+1 QCD and tested against lattice screening masses extracted from chiral susceptibilities for evidence of persistent U(1)A breaking.