Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV
Results of a search for decays of massive particles to fully hadronic final states are presented. This search uses 20.3 fb[superscript −1] of data collected by the ATLAS detector in √s = 8 TeV proton-proton collisions at the LHC. Signatures based on high jet multiplicities without requirements on...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/98519 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811069731928539136 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | Results of a search for decays of massive particles to fully hadronic final states are presented. This search uses 20.3 fb[superscript −1] of data collected by the ATLAS detector in √s = 8 TeV proton-proton collisions at the LHC. Signatures based on high jet multiplicities without requirements on the missing transverse momentum are used to search for R-parity-violating supersymmetric gluino pair production with subsequent decays to quarks. The analysis is performed using a requirement on the number of jets, in combination with separate requirements on the number of b-tagged jets, as well as a topological observable formed from the scalar sum of the mass values of large-radius jets in the event. Results are interpreted in the context of all possible branching ratios of direct gluino decays to various quark flavors. No significant deviation is observed from the expected Standard Model backgrounds estimated using jet counting as well as data-driven templates of the total-jet-mass spectra. Gluino pair decays to ten or more quarks via intermediate neutralinos are excluded for a gluino with mass m[~ over g] < 1 TeV for a neutralino mass m[~ 0 over χ1] = 500 GeV. Direct gluino decays to six quarks are excluded for m[~ over g] < 917 GeV for light-flavor final states, and results for various flavor hypotheses are presented. |
| first_indexed | 2024-09-23T08:15:03Z |
| format | Article |
| id | mit-1721.1/98519 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:15:03Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/985192022-09-30T08:35:18Z Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Results of a search for decays of massive particles to fully hadronic final states are presented. This search uses 20.3 fb[superscript −1] of data collected by the ATLAS detector in √s = 8 TeV proton-proton collisions at the LHC. Signatures based on high jet multiplicities without requirements on the missing transverse momentum are used to search for R-parity-violating supersymmetric gluino pair production with subsequent decays to quarks. The analysis is performed using a requirement on the number of jets, in combination with separate requirements on the number of b-tagged jets, as well as a topological observable formed from the scalar sum of the mass values of large-radius jets in the event. Results are interpreted in the context of all possible branching ratios of direct gluino decays to various quark flavors. No significant deviation is observed from the expected Standard Model backgrounds estimated using jet counting as well as data-driven templates of the total-jet-mass spectra. Gluino pair decays to ten or more quarks via intermediate neutralinos are excluded for a gluino with mass m[~ over g] < 1 TeV for a neutralino mass m[~ 0 over χ1] = 500 GeV. Direct gluino decays to six quarks are excluded for m[~ over g] < 917 GeV for light-flavor final states, and results for various flavor hypotheses are presented. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2015-09-15T18:28:12Z 2015-09-15T18:28:12Z 2015-06 2015-02 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/98519 Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Massive Supersymmetric Particles Decaying to Many Jets Using the ATLAS Detector in pp Collisions at √s = 8 TeV.” Physical Review D 91, no. 11 (June 29, 2015). © 2015 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevD.91.112016 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Taylor, Frank E. Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title | Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title_full | Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title_fullStr | Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title_full_unstemmed | Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title_short | Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s = 8 TeV |
| title_sort | search for massive supersymmetric particles decaying to many jets using the atlas detector in pp collisions at √s 8 tev |
| url | http://hdl.handle.net/1721.1/98519 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke searchformassivesupersymmetricparticlesdecayingtomanyjetsusingtheatlasdetectorinppcollisionsats8tev |