Studies of the large N behaviour of the topological properties of gauge theories typically focused on the large N scaling of the topological susceptibility. A much more difficult task is the study of the behaviour of higher cumulants of the topological charge in the large N limit, which up to now remained elusive. We will present first results confirming the expected large N scaling of the coefficient commonly denoted by b2, related to the kurtosis of the topological charge.
Theta dependence in the large N limit
Claudio Bonati;Massimo D'Elia;Paolo Rossi;Ettore Vicari
2017-01-01
Abstract
Studies of the large N behaviour of the topological properties of gauge theories typically focused on the large N scaling of the topological susceptibility. A much more difficult task is the study of the behaviour of higher cumulants of the topological charge in the large N limit, which up to now remained elusive. We will present first results confirming the expected large N scaling of the coefficient commonly denoted by b2, related to the kurtosis of the topological charge.File in questo prodotto:
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