Right-chiral sneutrinos and long-lived staus: event characteristics at the CERN Large Hadron Collider

Gupta, Sudhir Kumar ; Mukhopadhyaya, Biswarup ; Rai, Santosh Kumar (2007) Right-chiral sneutrinos and long-lived staus: event characteristics at the CERN Large Hadron Collider Physical Review D - Particles, Fields, Gravitation and Cosmology, 75 (7). Article ID 075007. ISSN 1550-7998

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Official URL: https://journals.aps.org/prd/abstract/10.1103/Phys...

Related URL: http://dx.doi.org/10.1103/PhysRevD.75.075007

Abstract

We investigate the signals of a supersymmetric scenario where the lighter tau-sneutrino is the lightest supersymmetric particle, while the lighter stau-state is the next lightest. We confirm that such a scenario can be motivated within the framework of minimal supergravity, with just the addition of a right-chiral neutrino superfield. Such a spectrum leads to rather unusual signals of supersymmetry, showing stable tracks of the stau in the muon chambers. We have studied two types of signals, namely, (a) two or more hard jets and two stau tracks, and (b) hard jets with two muons and two stau tracks. We demonstrate that the stau tracks can be distinguished from the muonic ones through proper kinematic cuts which also enable one to remove all standard model backgrounds.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:114657
Deposited On:04 Jun 2018 11:25
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