Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2010-03-03
Physics
High Energy Physics
High Energy Physics - Lattice
17 pages, revtex
Scientific paper
We calculate finite volume effects on the pion masses and decay constant in twisted mass lattice QCD (tmLQCD) at finite lattice spacing. We show that the lighter neutral pion in tmLQCD gives rise to finite volume effects that are exponentially enhanced when compared to those arising from the heavier charged pions. We demonstrate that the recent two flavour twisted mass lattice data can be better fitted when twisted mass effects in finite volume corrections are taken into account.
Colangelo Gilberto
Wenger Urs
Wu Jackson M. S.
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