We present a lattice simulation study of large Nc regularities of meson and baryon spectroscopy in SU(Nc) gauge theory with two flavors of dynamical fundamental representation fermions. Systems investigated include Nc=2, 3, 4, and 5, over a range of fermion masses parametrized by a squared pseudoscalar to vector meson mass ratio between about 0.2 to 0.7. Good agreement with large Nc scaling is observed in the static potential, in meson masses and decay constants, and in baryon spectroscopy. This is an update of the published version of the paper (Phys. Rev. D94 (2016) 034506).
@article{arxiv.1606.01277,
title = {Lattice study of large $N_c$ QCD},
author = {Thomas DeGrand and Yuzhi Liu},
journal= {arXiv preprint arXiv:1606.01277},
year = {2017}
}
Comments
35 pages, 23 figures. SU(4) and SU(5) results updated. Erratum published; this is an integral replacement of the paper