Quarkonia Formation in a Holographic Gravity–Dilaton Background Describing QCD Thermodynamics

• Main Authors: Rico Zöllner, Burkhard Kämpfer
• Format: Article
• Language: English
• Published: MDPI AG 2021-04-01
• Series: Particles
• Subjects: AdS/CFT correspondence; QCD phenomenology; meson spectral functions
• Online Access: https://www.mdpi.com/2571-712X/4/2/15

A holographic model of probe quarkonia is presented, where the dynamical gravity–dilaton background was adjusted to the thermodynamics of 2 + 1 flavor QCD with physical quark masses. The quarkonia action was modified to account for the systematic study of the heavy-quark mass dependence. We focused on the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>J</mi><mo>/</mo><mi>ψ</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mo>Υ</mo></semantics></math></inline-formula> spectral functions and related our model to heavy quarkonia formation as a special aspect of hadron phenomenology in heavy-ion collisions at LHC.