guest ::
| Home > Publications database > Topological susceptibility of N$_{f}$ = 2 + 1 QCD from staggered fermions spectral projectors at high temperatures |
| Home > Publications database > Topological susceptibility of N$_{f}$ = 2 + 1 QCD from staggered fermions spectral projectors at high temperatures |
| Preprint | PUBDB-2022-07926 |
; ; ; ; ; ; ; ; ;
2022
This record in other databases: 
Report No.: arXiv:2208.08921
Abstract: We compute the topological susceptibility of N$_{f}$ = 2 + 1 QCD with physical quark masses in the high-temperature phase, using numerical simulations of the theory discretized on a space-time lattice. More precisely we estimate the topological susceptibility for five temperatures in the range from ∼ 200 MeV up to ∼ 600 MeV, adopting the spectral projectors definition of the topological charge based on the staggered Dirac operator. This strategy turns out to be effective in reducing the large lattice artifacts which affect the standard gluonic definition, making it possible to perform a reliable continuum extrapolation. Our results for the susceptibility in the explored temperature range are found to be partially in tension with previous determinations in the literature.
Keyword(s): susceptibility: topological ; temperature: high ; charge: topological ; fermion: staggered ; space-time: lattice ; operator: Dirac ; quark: mass ; spectral ; quantum chromodynamics ; tension ; numerical calculations ; Lattice QCD ; Vacuum Structure and Confinement ; Axions and ALPs ; CP Violation
|
The record appears in these collections: |
Journal Article
Topological susceptibility of N$_{f}$ = 2 + 1 QCD from staggered fermions spectral projectors at high temperatures
Journal of high energy physics 10(10), 197 (2022) [10.1007/JHEP10(2022)197]
Files Fulltext by arXiv.org
BibTeX |
EndNote:
XML,
Text |
RIS
PDF