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 language | English (US) |
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Article number | 096016 |
Journal | Physical Review D |
Volume | 95 |
Issue number | 9 |
DOIs | |
State | Published - May 1 2017 |
Bibliographical note
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