English

Non-zero temperature study of spin 1/2 charmed baryons using lattice gauge theory

High Energy Physics - Lattice 2024-03-21 v2

Abstract

We study the behaviour of spin 1/21/2 charmed baryons as the temperature increases. We make use of anisotropic lattice QCD simulations with Nf=2+1N_f = 2 + 1 dynamical flavours. After determining the positive and negative parity ground state masses at the lowest temperature, we investigate the effect of rising temperature using ratios of thermal lattice correlators with both so-called reconstructed correlators and with simple model correlators. This avoids difficulties associated with non-zero temperature fitting or spectral reconstruction. We find that temperature effects are prominent throughout the hadronic phase for all negative parity channels considered and for some positive parity channels. Subsequently and where possible, we determine the masses of the ground states as a function of temperature. Finally we consider the effect of chiral symmetry restoration and extract an estimate of the pseudocritical temperature from singly charmed baryonic correlators.

Keywords

Cite

@article{arxiv.2308.12207,
  title  = {Non-zero temperature study of spin 1/2 charmed baryons using lattice gauge theory},
  author = {Gert Aarts and Chris Allton and M. Naeem Anwar and Ryan Bignell and Timothy J. Burns and Benjamin Jäger and Jon-Ivar Skullerud},
  journal= {arXiv preprint arXiv:2308.12207},
  year   = {2024}
}

Comments

17 pages, 16 figures, Matches published version