Testing mu = 0 on the lattice

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Published 30 November 1999 • Published under licence by IOP Publishing Ltd
, , Citation Andrew G. Cohen et al JHEP11(1999)027 DOI 10.1088/1126-6708/1999/11/027

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1 Department of Physics, Boston University, Boston, MA 02215, USA

2 Institute for Nuclear Theory, Box 1550, University of Washington, Seattle, WA 98195-1550, USA

3 Department of Physics, Box 1560, University of Washington, Seattle, WA 98195-1560, USA

Dates

  1. Received 3 November 1999
  2. Accepted 18 November 1999
  3. Published

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1126-6708/1999/11/027

Abstract

A massless up quark is an intriguing possible solution to the strong CP problem. We discuss how lattice computations can be used in conjunction with chiral perturbation theory to address the consistency of mu = 0 with the observed hadron spectrum and interactions. It is not necessary to simulate very light quarks - three flavor partially quenched computations with comparable sea and valence quark masses on the order of the strange quark mass could suffice.

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