paper

Applying chiral perturbation to twisted mass Lattice QCD

arXiv:hep-lat/0407035 · doi:10.1016/j.nuclphysbps.2004.11.265

Abstract

We have explored twisted mass LQCD (tmLQCD) analytically using chiral perturbation theory, including discretization effects up to O(a^2), and working at next-to-leading (NLO) order in the chiral expansion. In particular we have studied the vacuum structure, and calculated the dependence of pion masses and decay constants on the quark mass, twisting angle and lattice spacing. We give explicit examples for quantities that both are and are not automatically improved at maximal twisting.

3 pages, 1 figure. Talk given at Lattice2004(spectrum), Fermi National Accelerator Laboratory, June 21 - 26, 2004. v2: Minor typos fixed, slight page format adjustment for generating 3 page postscript at the arXiv. v3: Change to meta-data field only. No change to actual paper

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