Noncommutativity and unitarity violation in gauge boson scattering
| Autor: | J.L. Hewett, Frank Petriello, T. G. Rizzo |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
High Energy Physics - Theory
Condensed Matter::Quantum Gases Physics Nuclear and High Energy Physics Gauge boson Particle physics Unitarity Mathematics::Operator Algebras Spontaneous symmetry breaking High Energy Physics::Phenomenology FOS: Physical sciences Noncommutative geometry High Energy Physics - Phenomenology Theoretical physics High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) Mathematics::K-Theory and Homology Noncommutative standard model Gauge theory Symmetry breaking Noncommutative quantum field theory |
| Zdroj: | Physical Review D. 66 |
| ISSN: | 1089-4918 0556-2821 |
| DOI: | 10.1103/physrevd.66.036001 |
| Popis: | We examine the unitarity properties of spontaneously broken non-commutative gauge theories. We find that the symmetry breaking mechanism in the non-commutative Standard Model of Chaichian et al. leads to an unavoidable violation of tree-level unitarity in gauge boson scattering at high energies. We then study a variety of simplified spontaneously broken non-commutative theories and isolate the source of this unitarity violation. Given the group theoretic restrictions endemic to non-commutative model building, we conclude that it is difficult to build a non-commutative Standard Model under the Weyl-Moyal approach that preserves unitarity. Comment: 31 pages |
| Databáze: | OpenAIRE |
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