Search for direct chargino production in anomaly-mediated supersymmetry breaking models based on a disappearing-track signature in pp collisions at $$ \sqrt{s}=7\;\mathrm{TeV} $$ with the ATLAS detector
Journal Article
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· Journal of High Energy Physics (Online)
A search for direct chargino production in anomaly-mediated supersymmetry breaking scenarios is performed in pp collisions at s√=7TeV using 4.7 fb-1 of data collected with the ATLAS experiment at the LHC. In these models, the lightest chargino is predicted to have a lifetime long enough to be detected in the tracking detectors of collider experiments. This analysis explores such models by searching for chargino decays that result in tracks with few associated hits in the outer region of the tracking system. The transverse-momentum spectrum of candidate tracks is found to be consistent with the expectation from the Standard Model background processes and constraints on chargino properties are obtained.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- The ATLAS collaboration
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1462393
- Report Number(s):
- BNL--207889-2018-JARP; PII: 5468
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2013; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Search for charginos nearly mass degenerate with the lightest neutralino based on a disappearing-track signature in p p collisions at ( s ) = 8 TeV with the ATLAS detector
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journal | December 2013 |
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