Speaker
Stefan Sint
(Trinity College Dublin)
Description
The chirally rotated Schroedinger functional (SF) provides a test bed
for universality and automatic O(a) improvement.
In joint work with Bjoern Leder, we have implemented
the chirally rotated Schroedinger functional and carried out
extensive quenched simulations. We demonstrate that, after proper tuning
of a dimension 3 boundary counterterm, the expected chirally rotated
SF boundary conditions are indeed obtained. As a result, automatic
O(a) improvement is realised and we demonstrate this with a few
examples. Universality of properly renormalized correlation functions
is confirmed by comparing to results obtained with the standard set-up
of the Schroedinger functional. As a by-product of this study the
non-singlet current renormalisation constants Z_A and Z_V are obtained
from ratios of 2-point functions.
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Primary author
Stefan Sint
(Trinity College Dublin)
Co-author
Dr
Bjoern Leder
(University of Wuppertal)
