Superasymptotic and hyperasymptotic approximation to the operator product expansion
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DOI: 10.1103/physrevd.99.074019
Abstract: Given an observable and its operator product expansion (OPE), we present expressions that carefully disentangle truncated sums of the perturbative series in powers of $\alpha$ from the non-perturbative (NP) corrections. This splitting is done with… read more here.
Keywords: product expansion; operator product; expansion; superasymptotic hyperasymptotic ... See more keywords