Speaker
Johannes Weber
(University of Tsukuba)
Description
Minimally doubled fermions reconcile standard chiral symmetry with a
minimal number of flavours in accordance with the restrictions of the
Nielsen-Ninomiya no-go theorem. Hypercubic symmetry however, is
necessarily broken by the alignment of two poles of the propagator in
momentum space.
The specified direction of the symmetry breaking strongly affects
the properties of these actions. We introduce a constant vector \Lambda
breaking hypercubic symmetry explicitly, which points from one zero mode
to the other and yields a uniform description of the renormalization
properties of minimally doubled fermions. We use this vector to clarify
the symmetry of the two zero modes.
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Primary author
Johannes Weber
(University of Tsukuba)
Co-authors
Prof.
Hartmut Wittig
(Johannes-Gutenberg-University Mainz)
Dr
Stefano Capitani
(Johannes-Gutenberg-University Mainz)
