Excited Scalar Mesons and the Search for Glueballs
Denis Parganlija (Vienna UT), Francesco Giacosa (Kielce U)
TL;DR
This paper explores the mixing of glueballs with excited quark-antiquark states in the scalar meson sector, suggesting that their masses are close, which impacts strategies for identifying glueballs in experiments.
Contribution
It introduces a preliminary analysis using the Extended Linear Sigma Model to estimate excited scalar meson masses near lattice QCD glueball predictions.
Findings
Excited scalar meson masses are close to lattice QCD glueball masses.
Mixing between glueballs and excited states is significant for experimental searches.
Implications for future glueball detection strategies.
Abstract
We discuss the importance of mixing between glueballs -- bound states of gluons -- and excited states for the glueball search. A preliminary study of the excited states in the Extended Linear Sigma Model (eLSM) suggests their masses in the scalar channel to be in the vicinity of the scalar-glueball mass found in Lattice QCD. This could have implications for future glueball searches.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Dark Matter and Cosmic Phenomena