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Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.104043
Abstract: We prove the unitarity of the Euclidean nonlocal scalar field theory to all perturbative orders in the loop expansion. The amplitudes in the Euclidean space are calculated assuming that all the particles have purely imaginary…
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Keywords:
field;
rules perturbative;
perturbative unitarity;
euclidean nonlocal ... See more keywords