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 journalConference articleResearch

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 languageEnglish
JournalP o S - Proceedings of Science
Number of pages7
ISSN1824-8039
Publication statusPublished - 11. Nov 2015
Event33rd International Symposium on Lattice Field Theory - Kobe Convention Center, Kobe, Japan
Duration: 14. Jul 201518. Jul 2015

Conference

Conference33rd International Symposium on Lattice Field Theory
LocationKobe Convention Center
CountryJapan
CityKobe
Period14/07/201518/07/2015

Fingerprint

gradients
gauge theory
indication
perturbation theory
fermions
boundary conditions
continuums
scaling

Keywords

  • hep-lat

Cite this

Leino, V., Karavirta, T., Rantaharju, J., Rantalaiho, T., Rummukainen, K., Suorsa, J. M., & Tuominen, K. (2015). Gradient flow and IR fixed point in SU(2) with Nf=8 flavors. P o S - Proceedings of Science.
Leino, Viljami ; Karavirta, Tuomas ; Rantaharju, Jarno ; Rantalaiho, Teemu ; Rummukainen, Kari ; Suorsa, Joni M. ; Tuominen, Kimmo. / Gradient flow and IR fixed point in SU(2) with Nf=8 flavors. In: P o S - Proceedings of Science. 2015.
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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 = "11",
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language = "English",
journal = "P o S - Proceedings of Science",
issn = "1824-8039",
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}

Leino, V, Karavirta, T, Rantaharju, J, Rantalaiho, T, Rummukainen, K, Suorsa, JM & Tuominen, K 2015, 'Gradient flow and IR fixed point in SU(2) with Nf=8 flavors', P o S - Proceedings of Science.

Gradient flow and IR fixed point in SU(2) with Nf=8 flavors. / Leino, Viljami; Karavirta, Tuomas; Rantaharju, Jarno; Rantalaiho, Teemu; Rummukainen, Kari; Suorsa, Joni M.; Tuominen, Kimmo.

In: P o S - Proceedings of Science, 11.11.2015.

Research output: Contribution to journalConference articleResearch

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

ER -

Leino V, Karavirta T, Rantaharju J, Rantalaiho T, Rummukainen K, Suorsa JM et al. Gradient flow and IR fixed point in SU(2) with Nf=8 flavors. P o S - Proceedings of Science. 2015 Nov 11.