Search for massive long-lived particles decaying semileptonically in the LHCb detector
A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb⁻¹, respectively. The analysis is performed assuming a set of...
| Main Authors: | , , , |
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| Format: | Article |
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Springer Berlin Heidelberg
2018
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| Online Access: | http://hdl.handle.net/1721.1/118625 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
| _version_ | 1811075619388129280 |
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| author | LHCB Collaboration Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics LHCB Collaboration Boettcher, Thomas Julian Ilten, Philip J Williams, Michael |
| author_sort | LHCB Collaboration |
| collection | MIT |
| description | A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb⁻¹, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV/c² and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c² range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models. Keywords:
Minimal Supersymmetric Standard Model; Systematic Uncertainty; Detection Efficiency; Gluino Mass; Fast Simulation |
| first_indexed | 2024-09-23T10:09:19Z |
| format | Article |
| id | mit-1721.1/118625 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:09:19Z |
| publishDate | 2018 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1186252022-09-30T19:15:31Z Search for massive long-lived particles decaying semileptonically in the LHCb detector LHCB Collaboration Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Boettcher, Thomas Julian Ilten, Philip J Williams, Michael A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2fb⁻¹, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV/c² and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c² range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models. Keywords: Minimal Supersymmetric Standard Model; Systematic Uncertainty; Detection Efficiency; Gluino Mass; Fast Simulation 2018-10-19T18:12:32Z 2018-10-19T18:12:32Z 2017-04 2016-12 2018-08-30T13:38:33Z Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/118625 Aaij, R. et al. “Search for Massive Long-Lived Particles Decaying Semileptonically in the LHCb Detector.” The European Physical Journal C 77, 4 (April 2017): 224 © 2017 The Author(s) https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 http://dx.doi.org/10.1140/epjc/s10052-017-4744-6 European Physical Journal C: Particles and Fields Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer Berlin Heidelberg Springer |
| spellingShingle | LHCB Collaboration Boettcher, Thomas Julian Ilten, Philip J Williams, Michael Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title | Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title_full | Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title_fullStr | Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title_full_unstemmed | Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title_short | Search for massive long-lived particles decaying semileptonically in the LHCb detector |
| title_sort | search for massive long lived particles decaying semileptonically in the lhcb detector |
| url | http://hdl.handle.net/1721.1/118625 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
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