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Collider signatures...
Collider signatures of goldstini in gauge mediation
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- Argurio, Riccardo, 1972 (author)
- Université libre de Bruxelles (ULB),International Solvay Institute for Physics and Chemistry
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- De Causmaecker, K. (author)
- International Solvay Institute for Physics and Chemistry,Vrije Universiteit Brüssel (VUB),Vrije Universiteit Brussel (VUB)
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- Ferretti, Gabriele, 1963 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mariotti, A. (author)
- Vrije Universiteit Brüssel (VUB),Vrije Universiteit Brussel (VUB),International Solvay Institute for Physics and Chemistry
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- Mawatari, K. (author)
- Vrije Universiteit Brüssel (VUB),Vrije Universiteit Brussel (VUB),International Solvay Institute for Physics and Chemistry
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- Takaesu, Yoshitaro (author)
- High Energy Accelerator Research Organization (KEK)
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(creator_code:org_t)
- 2012
- 2012
- English.
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In: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; 2012:6
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We investigate the collider signatures of the multiple goldstini scenario in the framework of gauge mediation. This class of models is characterized by a visible sector (e.g. the MSSM or any extension) coupled by gauge interactions to more than one SUSY breaking sector. The spectrum consists of a light gravitino LSP, behaving as a goldstino, and a number of neutral fermions (the pseudo-goldstini) with a mass between that of the LSP and that of the lightest particle of the observable sector (LOSP). We consider the two situations where the LOSP is either a gaugino-like neutralino or a stau and we assume only one pseudo-goldstino of a mass of O(100) GeV. The coupling of the LOSP to the pseudo-goldstino can be enhanced with respect to those of the gravitino giving rise to characteristic signatures. We show that the decay modes of the LOSP into a SM particle and a pseudo-goldstino can be significant. For both LOSP scenarios we analyze (pseudo)-goldstini production at colliders. Compared to standard gauge mediation the final state spectrum is softer and more structured.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Goldstinos
- Supersymmetry
- LHC
Publication and Content Type
- art (subject category)
- ref (subject category)
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