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Unscreening the Gaugino Mass with Chiral Messengers

Riccardo Argurio ; Matteo Bertolini ; Gabriele Ferretti (Institutionen för fundamental fysik, Matematisk fysik) ; Alberto Mariotti
Journal of High Energy Physics (1126-6708). 12, (2010)
[Artikel, refereegranskad vetenskaplig]

Gaugino screening, the absence of next-to-leading order corrections to gaugino masses, is a generic feature of gauge mediation models of supersymmetry breaking. We show that in a specific class of models, known as semi-direct gauge mediation, it is possible to avoid gaugino screening by allowing for a chiral messenger sector. Messengers then acquire a mass at some scale, for instance by higgsing or by some auxiliary strong coupling dynamics. We implement this idea in a simple model which we work out explicitly.

Nyckelord: Supersymmetry, Gauge mediation, Gaugino

Denna post skapades 2010-12-21. Senast ändrad 2011-11-04.
CPL Pubid: 131559


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Institutioner (Chalmers)

Institutionen för fundamental fysik, Matematisk fysik (2005-2013)



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