SU(3) Yang Mills theory at small distances and fine lattices

We investigate the SU(3) Yang Mills theory at small gradient flow time and at short distances. Lattice spacings down to a = 0.015 fm are simulated with open boundary conditions to allow topology to flow in and out. We study the behaviour of the action density E ( t ) close to the boundaries, the fea...

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Bibliographic Details
Published in:EPJ Web of conferences 2018-01, Vol.175, p.14024
Main Authors: Husung, Nikolai, Koren, Mateusz, Krah, Philipp, Sommer, Rainer
Format: Article
Language:English
Subjects:
Boundary conditions
Gradient flow
Lattices
Yang-Mills theory
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Summary:We investigate the SU(3) Yang Mills theory at small gradient flow time and at short distances. Lattice spacings down to a = 0.015 fm are simulated with open boundary conditions to allow topology to flow in and out. We study the behaviour of the action density E ( t ) close to the boundaries, the feasibility of the small flow-time expansion and the extraction of the Λ-parameter from the static force at small distances. For the latter, significant deviations from the 4-loop perturbative β-function are visible at α ≈ 0.2. We still can extrapolate to extract r o Λ.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201817514024