Thermodynamics of charmed hadrons across chiral crossover from lattice QCD
arXiv:2501.01300 · doi:10.1016/j.jspc.2025.100044
Abstract
We use up to fourth-order charm fluctuations and their correlations with net baryon number, electric charge, and strangeness fluctuations, calculated within the framework of lattice QCD, to study the continuum partial pressure contributions of charmed baryons and mesons. We show that, at and below the chiral crossover temperature, these partial pressures receive enhanced contributions from experimentally unobserved charmed hadrons predicted by the Quark Model. Additionally, we demonstrate that at the chiral crossover, the Hadron Resonance Gas description breaks down, signaling the modification of open charm hadrons and thereby implying the onset of charm deconfinement. We present evidence for the survival of low-lying non-radial and hadron-like excitations above the chiral crossover, which hints at the sequential melting of charmed hadrons. Finally, we investigate the continuum partial pressure contribution of charm quark-like excitation that emerges at the chiral crossover and calculate its temperature-dependent in-medium mass.
6 pages, 6 figures; contribution to the proceedings of EMMI Workshop in Wroclaw "Aspects of Criticality II". Made modifications based on the Referee report
References in corpus (12)
- An updated review of the new hadron states
- Highly Improved Staggered Quarks on the Lattice, with Applications to Charm Physics
- Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
- Scaling studies of QCD with the dynamical HISQ action
- The melting and abundance of open charm hadrons
- Second order cumulants of conserved charge fluctuations revisited I. Vanishing chemical potentials
- In-medium modifications of open and hidden strange-charm mesons from spatial correlation functions
- SIMULATeQCD: A simple multi-GPU lattice code for QCD calculations
- New Way to Resum the Lattice QCD Taylor Series Equation of State at Finite Chemical Potential
- Charm degrees of freedom in hot matter from lattice QCD
- Streamlined data analysis in Python
- Emergence of New Systematics for Open Charm Production in High Energy Collisions
Cited by in corpus (4)
- Generalized susceptibilities and the properties of charm degrees of freedom across the QCD crossover temperature
- Emergence of New Systematics for Open Charm Production in High Energy Collisions
- Primordial Black Holes Formation Beyond the Standard Cosmic QCD Transition
- Studying the QCD phase diagram using pressure derivatives from lattice QCD