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Article
Report number arXiv:1103.1984 ; CERN-PH-EP-2011-026 ; CERN-PH-EP-2011-026
Title Search for Stable Hadronising Squarks and Gluinos at the ATLAS Experiment at the LHC
Related titleSearch for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC
Author(s) ATLAS Collaboration  Visualizza tutti i 3054 autori
Publication 2011-06-27
Imprint 11 Mar 2011
Number of pages 19
Note Comments: 9 pages, submitted to Phys. Lett. B
9 pages, submitted to Phys. Lett. B
In: Phys. Lett. B 701 (2011) 1-19
DOI 10.1016/j.physletb.2011.05.010
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry
Abstract Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this paper a search is performed at the ATLAS experiment for slow-moving charged particles produced in proton-proton collisions at 7 TeV centre-of-mass energy at the LHC, using a data-set corresponding to an integrated luminosity of 34 pb-1. No deviations from Standard Model expectations are found. This result is interpreted in a framework of supersymmetry models in which coloured sparticles can hadronise into long-lived bound hadronic states, termed R-hadrons, and 95% CL limits are set on the production cross-sections of squarks and gluinos. The in influence of R-hadron interactions in matter was studied using a number of different models, and lower mass limits for stable sbottoms and stops are found to be 294 and 309 GeV respectively. The lower mass limit for a stable gluino lies in the range from 562 to 586 GeV depending on the model assumed. Each of these constraints is the most stringent to date.
Copyright/License publication: © 2011-2024 CERN (License: CC-BY-3.0)
preprint: © 2011-2024 CERN (License: CC-BY-3.0)



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


 Record creato 2011-03-10, modificato l'ultima volta il 2024-03-14


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