Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV
A search for supersymmetry is presented based on events with large missing transverse energy, no isolated electron or muon, and at least three jets with one or more identified as a bottom-quark jet. A simultaneous examination is performed of the numbers of events in exclusive bins of the scalar sum...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier BV
2020
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| Online Access: | https://hdl.handle.net/1721.1/123337 |
| _version_ | 1811088976777314304 |
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| author | Apyan, Aram Bauer, Gerry P Busza, Wit Cali, Ivan Amos Chan, Michael T. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Lai, Yue Shi Levin, A. Luckey Jr, P David Ma, T. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan (Duncan Kelley) Roland, Christof E Roland, Gunther M Stephans, George S. F. Stoeckli, Fabian Sumorok, Konstanty C Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Wyslouch, Victoria CMS Collaboration |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Bauer, Gerry P Busza, Wit Cali, Ivan Amos Chan, Michael T. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Lai, Yue Shi Levin, A. Luckey Jr, P David Ma, T. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan (Duncan Kelley) Roland, Christof E Roland, Gunther M Stephans, George S. F. Stoeckli, Fabian Sumorok, Konstanty C Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Wyslouch, Victoria CMS Collaboration |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | A search for supersymmetry is presented based on events with large missing transverse energy, no isolated electron or muon, and at least three jets with one or more identified as a bottom-quark jet. A simultaneous examination is performed of the numbers of events in exclusive bins of the scalar sum of jet transverse momentum values, missing transverse energy, and bottom-quark jet multiplicity. The sample, corresponding to an integrated luminosity of 19.4fb⁻¹, consists of proton-proton collision data recorded at a center-of-mass energy of 8TeV with the CMS detector at the LHC in 2012. The observed numbers of events are found to be consistent with the standard model expectation, which is evaluated with control samples in data. The results are interpreted in the context of two simplified supersymmetric scenarios in which gluino pair production is followed by the decay of each gluino to an undetected lightest supersymmetric particle and either a bottom or top quark-antiquark pair, characteristic of gluino mediated bottom- or top-squark production. Using the production cross section calculated to next-to-leading-order plus next-to-leading-logarithm accuracy, and in the limit of a massless lightest supersymmetric particle, we exclude gluinos with masses below 1170GeV and 1020GeV for the two scenarios, respectively. Keywords: CMS, Physics, SUSY, Hadronic, Btag |
| first_indexed | 2024-09-23T14:11:17Z |
| format | Article |
| id | mit-1721.1/123337 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:11:17Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1233372022-09-28T19:07:11Z Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV Apyan, Aram Bauer, Gerry P Busza, Wit Cali, Ivan Amos Chan, Michael T. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Lai, Yue Shi Levin, A. Luckey Jr, P David Ma, T. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan (Duncan Kelley) Roland, Christof E Roland, Gunther M Stephans, George S. F. Stoeckli, Fabian Sumorok, Konstanty C Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Wyslouch, Victoria CMS Collaboration Massachusetts Institute of Technology. Department of Physics Lincoln Laboratory Massachusetts Institute of Technology. Laboratory for Nuclear Science A search for supersymmetry is presented based on events with large missing transverse energy, no isolated electron or muon, and at least three jets with one or more identified as a bottom-quark jet. A simultaneous examination is performed of the numbers of events in exclusive bins of the scalar sum of jet transverse momentum values, missing transverse energy, and bottom-quark jet multiplicity. The sample, corresponding to an integrated luminosity of 19.4fb⁻¹, consists of proton-proton collision data recorded at a center-of-mass energy of 8TeV with the CMS detector at the LHC in 2012. The observed numbers of events are found to be consistent with the standard model expectation, which is evaluated with control samples in data. The results are interpreted in the context of two simplified supersymmetric scenarios in which gluino pair production is followed by the decay of each gluino to an undetected lightest supersymmetric particle and either a bottom or top quark-antiquark pair, characteristic of gluino mediated bottom- or top-squark production. Using the production cross section calculated to next-to-leading-order plus next-to-leading-logarithm accuracy, and in the limit of a massless lightest supersymmetric particle, we exclude gluinos with masses below 1170GeV and 1020GeV for the two scenarios, respectively. Keywords: CMS, Physics, SUSY, Hadronic, Btag 2020-01-07T19:22:59Z 2020-01-07T19:22:59Z 2013-07 2013-06 2019-05-03T14:37:00Z Article http://purl.org/eprint/type/JournalArticle 0370-2693 https://hdl.handle.net/1721.1/123337 Chatrchyan, S. et al. "Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV." Physics Letters B 725, 4-5 (October 2013): 243-270 © 2013 CERN en http://dx.doi.org/10.1016/j.physletb.2013.06.058 Physics Letters B https://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier BV Elsevier |
| spellingShingle | Apyan, Aram Bauer, Gerry P Busza, Wit Cali, Ivan Amos Chan, Michael T. Dutta, Valentina Gomez-Ceballos, Guillelmo Goncharov, Maxim Kim, Y. Klute, Markus Lai, Yue Shi Levin, A. Luckey Jr, P David Ma, T. Nahn, Steven Paus, Christoph M. E. Ralph, Duncan (Duncan Kelley) Roland, Christof E Roland, Gunther M Stephans, George S. F. Stoeckli, Fabian Sumorok, Konstanty C Velicanu, Dragos Alexandru Wolf, Roger Wyslouch, Boleslaw Yang, M. Yilmaz, Yetkin Yoon, A. S. Zanetti, Marco Wyslouch, Victoria CMS Collaboration Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title | Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title_full | Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title_fullStr | Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title_full_unstemmed | Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title_short | Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV |
| title_sort | search for gluino mediated bottom and top squark production in multijet final states in pp collisions at 8 tev |
| url | https://hdl.handle.net/1721.1/123337 |
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