Matching in Nonrelativistic Effective Quantum Field Theories
| dc.creator | Gall, A. | |
| dc.date | 1999-10-15 | |
| dc.date.accessioned | 2026-07-07T04:08:22Z | |
| dc.date.available | 2026-07-07T04:08:22Z | |
| dc.description | Nonrelativstic effective field theories have shown to be a useful framework to describe systems of weakly bound particles. This work focuses on the matching procedure to the underlying relativistic theory. The concept of a physical mass in the absence of explicit Lorentz symmetry and the matching conditions for S-matrix elements and Green's functions are discussed in general for scalar particles. The effective Lagrangians of the pure particle and anti-particle sectors are constructed explicitely for a Yukawa-type interaction of a heavy and a light scalar field. Using the proper matching, it is shown that they reproduce the corresponding relativistic amplitudes in a systematic expansion in inverse powers of the heavy mass. | |
| dc.description | 72 pages, 13 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9910364 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9910364 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49504 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Matching in Nonrelativistic Effective Quantum Field Theories | |
| dc.type | text |