Estimating $\chi_\mathrm{top}$ Lattice Artifacts from Flowed SU(2) Calorons
| Autor: | Jahn, Peter Thomas, Moore, Guy D., Robaina, Daniel |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Eur. Phys. J. C (2019) 79:510 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1140/epjc/s10052-019-7008-9 |
| Popis: | Lattice computations of the high-temperature topological susceptibility of QCD receive lattice-spacing corrections and suffer from systematics arising from the type and depth of gradient flow. We study the lattice spacing corrections to $\chi_\mathrm{top}$ semi-analytically by exploring the behavior of discretized Harrington-Shepard calorons under the action of different forms of gradient flow. From our study we conclude that $N_\tau = 6$ is definitely too small of a time extent to study the theory at temperatures of order $4~T_\mathrm{c}$ and we explore how the amount of gradient flow influences the continuum extrapolation. Comment: 10 pages, 8 figures (published version) |
| Databáze: | arXiv |
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