A Fat Gluino in Disguise
arXiv:1212.5559 · doi:10.1140/epjc/s10052-013-2355-4
Abstract
In this paper, we investigate how a sizeable width-to-mass ratio for a gluino, as is for example realized in GMSB scenarios, could affect the discovery potential of gluinos at the LHC. More importantly, the influence of the gluino being "fat" on the standard mass and spin determination methods at the LHC are investigated. For this purpose, we focus on gluino production at the LHC, where we do not factorize the first step in the gluino decay cascade, but treat the following decay cascades step in factorization, including full spin correlations. The effects of sizeable width-to-mass ratios from a few up to 15-20 per cent on the endpoint of several mass determination methods as well as on means for discrimination between BSM spin paradigms like SUSY and UED are studied.
27 pages, 14 figures
References in corpus (7)
- FeynRules - Feynman rules made easy
- Narrow-width approximation accuracy
- It's a Gluino!
- Novel reconstruction technique for New Physics processes with initial state radiation
- A New Method for Resolving Combinatorial Ambiguities at Hadron Colliders
- Controlling ISR in sparticle mass reconstruction
- Distorted mass edges at LHC from supersymmetric leptoquarks