Speaker
Maarten Golterman
(San Francisco State University)
Description
Partially quenched lattice QCD is defined in euclidean space, and usually
considered not be unitary. This raises the question whether effective
field theory methods, such as chiral perturbation theory, can be justified
in the partially quenched case. In this talk, we take a first step, in which
we construct a transfer matrix for the ghost sector of partially quenched
theories. While this leads to a nonhermitian hamiltonian, we show that
the eigenvalues of this hamiltonian have positive real part.
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Primary author
Maarten Golterman
(San Francisco State University)
Co-author
Prof.
Claude Bernard
(Washington University)
