Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV
A search for long-lived particles is performed using a data sample of 4.7 fb[superscript −1] from proton–proton collisions at a centre-of-mass energy √s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level,...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
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Elsevier B.V.
2014
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| Online Access: | http://hdl.handle.net/1721.1/91986 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811068657334222848 |
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| author | Taylor, Frank E. ATLAS Collaboration |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. ATLAS Collaboration |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | A search for long-lived particles is performed using a data sample of 4.7 fb[superscript −1] from proton–proton collisions at a centre-of-mass energy √s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tan [beta] = 5-20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. |
| first_indexed | 2024-09-23T07:59:11Z |
| format | Article |
| id | mit-1721.1/91986 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T07:59:11Z |
| publishDate | 2014 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | mit-1721.1/919862022-09-23T10:04:40Z Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV Taylor, Frank E. ATLAS Collaboration Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A search for long-lived particles is performed using a data sample of 4.7 fb[superscript −1] from proton–proton collisions at a centre-of-mass energy √s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tan [beta] = 5-20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. Brookhaven National Laboratory National Science Foundation (U.S.) United States. Dept. of Energy 2014-12-02T14:59:34Z 2014-12-02T14:59:34Z 2013-03 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/91986 Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A.A. Abdelalim, O. Abdinov, et al. “Searches for Heavy Long-Lived Sleptons and R-Hadrons with the ATLAS Detector in Pp Collisions at √s = 7 TeV.” Physics Letters B 720, no. 4–5 (March 2013): 277–308. https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1016/j.physletb.2013.02.015 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier B.V. Elsevier |
| spellingShingle | Taylor, Frank E. ATLAS Collaboration Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title | Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title_full | Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title_fullStr | Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title_full_unstemmed | Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title_short | Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV |
| title_sort | searches for heavy long lived sleptons and r hadrons with the atlas detector in pp collisions at √s 7 tev |
| url | http://hdl.handle.net/1721.1/91986 https://orcid.org/0000-0002-7586-7253 |
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