The running coupling of 8 flavors and 3 colors

Zoltan Fodor; Kieran Holland; Julius Kuti; Santanu Mondal; Daniel Nogradi; Chik Him Wong

doi:10.1007/JHEP06(2015)019

The running coupling of 8 flavors and 3 colors

Zoltan Fodor, Kieran Holland, Julius Kuti, Santanu Mondal, Daniel Nogradi, Chik Him Wong

Physics

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Abstract: We compute the renormalized running coupling of SU(3) gauge theory coupled to N_f = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. As a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.

Original language	English (US)
Article number	19
Journal	Journal of High Energy Physics
Volume	2015
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2015)019
State	Published - Jun 9 2015

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP06(2015)019

Cite this

@article{a04b0991d6c74c50b381c433d87a4078,

title = "The running coupling of 8 flavors and 3 colors",

abstract = "Abstract: We compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. As a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.",

author = "Zoltan Fodor and Kieran Holland and Julius Kuti and Santanu Mondal and Daniel Nogradi and Wong, {Chik Him}",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = jun,

day = "9",

doi = "10.1007/JHEP06(2015)019",

language = "English (US)",

volume = "2015",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "6",

}

TY - JOUR

T1 - The running coupling of 8 flavors and 3 colors

AU - Fodor, Zoltan

AU - Holland, Kieran

AU - Kuti, Julius

AU - Mondal, Santanu

AU - Nogradi, Daniel

AU - Wong, Chik Him

PY - 2015/6/9

Y1 - 2015/6/9

N2 - Abstract: We compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. As a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.

AB - Abstract: We compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. As a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.

UR - http://www.scopus.com/inward/record.url?scp=84930633860&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930633860&partnerID=8YFLogxK

U2 - 10.1007/JHEP06(2015)019

DO - 10.1007/JHEP06(2015)019

M3 - Article

AN - SCOPUS:84930633860

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 19

ER -

The running coupling of 8 flavors and 3 colors

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this