2,579 research outputs found
Renormalization trasformations of the 4D BFYM theory
We study the most general renormalization transformations for the first-order
formulation of the Yang-Mills theory. We analyze, in particular, the trivial
sector of the BRST cohomology of two possible formulations of the model: the
standard one and the extended one. The latter is a promising starting point for
the interpretation of the Yang-Mills theory as a deformation of the topological
BF theory. This work is a necessary preliminary step towards any perturbative
calculation, and completes some recently obtained results.Comment: 12 pages, Late
Juvenile schizophrenia
This brief review is preceded by the report of a case of schizophrenia in an African juvenile, a condition which I have not found described in the literature. One of the objects of the paper is to demonstrate that psychiatry is not divorced from general medicine, and to draw attention to the fact that fascinating clinical and research material exists in our mental hospitals
Axial Anomaly from the BPHZ regularized BV master equation
A BPHZ renormalized form for the master equation of the field antifiled (or
BV) quantization has recently been proposed by De Jonghe, Paris and Troost.
This framework was shown to be very powerful in calculating gauge anomalies. We
show here that this equation can also be applied in order to calculate a global
anomaly (anomalous divergence of a classically conserved Noether current),
considering the case of QED. This way, the fundamental result about the
anomalous contribution to the Axial Ward identity in standard QED (where there
is no gauge anomaly) is reproduced in this BPHZ regularized BV framework.Comment: 10 pages, Latex, minor changes in the reference
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