Gradient flow and IR fixed point in SU(2) with Nf=8 flavors

Viljami Leino; Tuomas Karavirta; Jarno Rantaharju; Teemu Rantalaiho; Kari Rummukainen; Joni M. Suorsa; Kimmo Tuominen

Gradient flow and IR fixed point in SU(2) with Nf=8 flavors

Viljami Leino, Tuomas Karavirta, Jarno Rantaharju, Teemu Rantalaiho, Kari Rummukainen, Joni M. Suorsa, Kimmo Tuominen

Research output: Contribution to journal › Conference article › Research

Abstract

We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schr\"odinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.

Original language	English
Journal	P o S - Proceedings of Science
Number of pages	7
ISSN	1824-8039
Publication status	Published - 11. Nov 2015
Event	33rd International Symposium on Lattice Field Theory - Kobe Convention Center, Kobe, Japan Duration: 14. Jul 2015 → 18. Jul 2015

Conference

Conference	33rd International Symposium on Lattice Field Theory
Location	Kobe Convention Center
Country	Japan
City	Kobe
Period	14/07/2015 → 18/07/2015

Keywords

hep-lat

Documents & Links

https://arxiv.org/pdf/1511.03563v1.pdf

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title = "Gradient flow and IR fixed point in SU(2) with Nf=8 flavors",

abstract = "We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schr\{"}odinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.",

keywords = "hep-lat",

author = "Viljami Leino and Tuomas Karavirta and Jarno Rantaharju and Teemu Rantalaiho and Kari Rummukainen and Suorsa, {Joni M.} and Kimmo Tuominen",

year = "2015",

month = nov,

day = "11",

language = "English",

journal = "P o S - Proceedings of Science",

issn = "1824-8039",

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note = "33rd International Symposium on Lattice Field Theory, Lattice ; Conference date: 14-07-2015 Through 18-07-2015",

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TY - GEN

T1 - Gradient flow and IR fixed point in SU(2) with Nf=8 flavors

AU - Leino, Viljami

AU - Karavirta, Tuomas

AU - Rantaharju, Jarno

AU - Rantalaiho, Teemu

AU - Rummukainen, Kari

AU - Suorsa, Joni M.

AU - Tuominen, Kimmo

PY - 2015/11/11

Y1 - 2015/11/11

N2 - We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schr\"odinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.

AB - We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schr\"odinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.

KW - hep-lat

M3 - Conference article

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

SN - 1824-8039

T2 - 33rd International Symposium on Lattice Field Theory

Y2 - 14 July 2015 through 18 July 2015

ER -