The Schrödinger functional with chirally rotated boundary
conditions
Presenter: Stefan Sint
Stefan Sint
Abstract: Using orbifold techniques I define a modified Schrödinger functional
for Wilson quarks with chirally rotated boundary conditions. With this set-up
all the standard O(a) counterterms to the action and operators become irrelevant in the chiral limit. This implies that ratios of renormalization constants
computed in a Schrödinger functional scheme can be automatically O(a) improved, up to unavoidable boundary counterterms. As an example I calculate
the running coupling for Nf = 2 massless quark flavours in the SF-scheme to
one-loop order of perturbation theory, demonstrating explicitly the irrelevance
of the Sheikholeslami-Wohlert term in the action.
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