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Article
Report number arXiv:1201.5595 ; CERN-PH-EP-2011-188 ; CERN-PH-EP-2011-188
Title Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
Related titleSearch for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
Author(s) ATLAS Collaboration  Show all 3053 authors
Publication 2012-04-24
Imprint 27 Jan 2012
Number of pages 9
Note Comments: 9 pages plus author list (23 pages total), 4 figures, 4 tables, submitted to Eur. Phys. J. C
9 pages plus author list (23 pages total), 4 figures, 4 tables, revised author list, matches Eur. Phys. J. C version
In: Eur. Phys. J. C 72 (2012) 1965
DOI 10.1140/epjc/s10052-012-1965-6
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry ; experimental results
Abstract New metastable massive particles with electric and colour charge are features of many theories beyond the Standard Model. A search is performed for long-lived gluino-based R-hadrons with the ATLAS detector at the LHC using a data sample corresponding to an integrated luminosity of 31 pb^-1. We search for evidence of particles that have come to rest in the ATLAS detector and decay at some later time during the periods in the LHC bunch structure without proton-proton collisions. No significant deviations from the expected backgrounds are observed, and a cross-section limit is set. It can be interpreted as excluding gluino-based R-hadrons with masses less than 341 GeV at the 95% C.L., for lifetimes from 10^-5 to 10^3 seconds and a neutralino mass of 100 GeV.
Copyright/License preprint: © 2012-2024 CERN (License: Open Access)
publication: © 2012-2024 CERN (License: Open Access)



Corresponding record in: Inspire
Email contact: klaus.moenig@cern.ch


 Record created 2012-01-27, last modified 2024-03-14


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