Speaker
Xining Du
(Washington University in St.Louis)
Description
In the light pseudoscalar sector, I study rooted staggered chiral
perturbation theory in the two-flavor case. The pion mass and decay
constant are calculated through NLO for a partially-quenched theory.
In the limit where the strange quark mass is large compared to the light
quark masses and the taste splittings, I show that the SU(2) staggered
chiral theory emerges from the SU(3) staggered chiral theory, as expected.
Explicit relations between SU(2) and SU(3)low energy constants and
taste-violating parameters are given. A brief summary of updated SU(2) chiral
fits to the MILC lattice data is presented.
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Primary author
Xining Du
(Washington University in St.Louis)
