Mass anomalous dimension in SU(2) with six fundamental fermions

Francis Bursa; Luigi Del Debbio; Liam Keegan; Claudio Pica; Thomas Pickup

doi:10.1016/j.physletb.2010.12.050

Mass anomalous dimension in SU(2) with six fundamental fermions

High Energy Physics - Phenomenology 2011-04-14 v3 High Energy Physics - Lattice

Authors: Francis Bursa , Luigi Del Debbio , Liam Keegan , Claudio Pica , Thomas Pickup

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Abstract

We simulate SU(2) gauge theory with six massless fundamental Dirac fermions. We measure the running of the coupling and the mass in the Schroedinger Functional scheme. We observe very slow running of the coupling constant. We measure the mass anomalous dimension gamma, and find it is between 0.135 and 1.03 in the range of couplings consistent with the existence of an IR fixed point.

Keywords

SU(2) gauge theory mass anomalous dimension schroedinger functional infrared fixed point lattice simulation conformal window

Cite

@article{arxiv.1007.3067,
  title  = {Mass anomalous dimension in SU(2) with six fundamental fermions},
  author = {Francis Bursa and Luigi Del Debbio and Liam Keegan and Claudio Pica and Thomas Pickup},
  journal= {arXiv preprint arXiv:1007.3067},
  year   = {2011}
}

Comments

14 pages, 4 figures; v3: published version

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