English

The Superfluid and Conformal Phase Transitions of Two-Color QCD

High Energy Physics - Phenomenology 2009-11-07 v2 High Energy Physics - Lattice Nuclear Theory

Abstract

The phase structure of two-color QCD is examined as a function of the chemical potential and the number of light quark flavors. We consider effective Lagrangians for two-color QCD containing the Goldstone excitations, spin-one particles and negative intrinsic parity terms. We discuss the possibility of a conformal phase transition and the enhancement of the global symmetries as the number of flavors is increased. The effects of a quark chemical potential on the spin-one particles and on the negative intrinsic parity terms are analyzed. It is shown that the phase diagram that is predicted by the linearly realized effective Lagrangian at tree-level matches exactly that predicted by chiral perturbation theory.

Keywords

Cite

@article{arxiv.hep-ph/0107099,
  title  = {The Superfluid and Conformal Phase Transitions of Two-Color QCD},
  author = {J. T. Lenaghan and F. Sannino and K. Splittorff},
  journal= {arXiv preprint arXiv:hep-ph/0107099},
  year   = {2009}
}

Comments

ReVTeX, 23 pages, 3 figures. Discussion of vector condensation extended, two figures added, references added