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High Energy Physics
New high energy physics research from A.D. Shapere and co-researchers described
December 5th, 2008
"We present a general method for computing the central charges a and c of N = 2 superconformal field theories corresponding to singular points in the moduli space of N = 2 gauge theories. Our method relates a and c to the U( 1) R anomalies of the topologically twisted gauge theory," investigators in the United States report. "We evaluate these anomalies by studying the holomorphic dependence of the path integral measure on the moduli. We calculate a and c for superconformal points in a variety of gauge theories, including N = 4 SU( N), N = 2 pure SU( N) Yang-Mills, and USp(2N) with 1 massless antisymmetric and 4 massive fundamental hypermultiplets. In the latter case, we...
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Source: Energy Weekly News (2008-12-05)
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