Phenomenology of scalar leptoquarks
| Autor: | Jonathan M. Arnold, Mark B. Wise, Bartosz Fornal |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Planck scale Proton decay High Energy Physics::Phenomenology FOS: Physical sciences Mass enhancement High Energy Physics - Phenomenology symbols.namesake High Energy Physics - Phenomenology (hep-ph) Homogeneous space symbols Leptoquark Baryon number Phenomenology (particle physics) Lepton |
| Zdroj: | Physical Review D. 88 |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.88.035009 |
| Popis: | We study the simplest renormalizable scalar leptoquark models where the standard model is augmented only by one additional scalar representation of SU(3) x SU(2) x U(1). The requirement that there be no proton decay from renormalizable interactions singles out two such models, one of which exhibits an unusual top mass enhancement of the mu -> e gamma decay rate. We analyze the phenomenology of the model with the unusual top mass enhancement of loop level chirality changing charged lepton processes in the light of existing and upcoming experiments. Both of the models that do not allow proton decay from renormalizable interactions have dimension five operators that, even if suppressed by the Planck scale, can give rise to an unacceptably high level of baryon number violation. We discuss symmetries that can forbid these dimension five operators. 7 pages, 9 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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