Light-front φ24 theory with sector-dependent mass

Sophia S. Chabysheva, John R. Hiller

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5 Scopus citations

Abstract

As an extension of recent work on two-dimensional light-front φ4 theory, we implement Fock-sector dependence for the bare mass. Such dependence should have important consequences for the convergence of nonperturbative calculations with respect to the level of Fock-space truncation. The truncation forces the self-energy corrections to be sector dependent; in particular, the highest sector has no self-energy correction. Thus, the bare mass can be considered sector dependent as well. We find that, although higher Fock sectors have a larger probability, the mass of the lightest state and the value of the critical coupling are not significantly affected. This implies that coherent states or the light-front coupled-cluster method may be required to properly represent critical behavior.

Original languageEnglish (US)
Article number096016
JournalPhysical Review D
Volume95
Issue number9
DOIs
StatePublished - May 1 2017

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