Axion and Neutralinos from Supersymmetric Extensions of the Standard Model with anomalous U(1)'s

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dc.creatorCoriano, Claudio
dc.creatorGuzzi, Marco
dc.creatorIrges, Nikos
dc.creatorMariano, Antonio
dc.date2008-11-03
dc.date2009-01-23
dc.date.accessioned2026-07-07T12:36:20Z
dc.date.available2026-07-07T12:36:20Z
dc.descriptionWe analyze the conditions under which some supersymmetric generalizations of a class of models descending from string theory allow an axion in the physical spectrum, due to the presence of anomalous abelian gauge interactions. The gauge structure of these constructions involve the Stueckelberg supermultiplet and a supersymmetric version of the Wess-Zumino term for anomaly cancellation. While these conditions are not satisfied by the MSSM superpotential, we show that an axion-like particle appears in the spectrum if extra Standard Model singlets are present. We show that the minimal requirements are met by simple superpotentials in which the singlet superfield is charged under the anomalous U(1). The dark matter sector of these models include an axion and several neutralinos with an axino component.
dc.descriptionPhys.Lett.B Published version, 9 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0811.0117
dc.identifierhttp://arxiv.org/abs/0811.0117
dc.identifierPhys.Lett.B671:87-90,2009
dc.identifierdoi:10.1016/j.physletb.2008.12.003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218061
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleAxion and Neutralinos from Supersymmetric Extensions of the Standard Model with anomalous U(1)'s
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