Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at √ s = 13 TeV
Author(s)
Abercrombie, Daniel Robert; Allen, B.; Baty, Austin Alan; Bi, R.; Brandt, S.; Busza, Wit; Cali, Ivan Amos; D'Alfonso, Mariarosaria; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Harris, Philip Coleman; Hsu, David; Hu, M.; Klute, Markus; Kovalskyi, Dmytro; Lee, Y.-J.; Marini, Andrea Carlo; McGinn, Christopher Francis; Mironov, Camelia Maria; Narayanan, Shankar; Niu, X.; Paus, Christoph M. E.; Rankin, Dylan S.; Roland, Christof E; Roland, Gunther M; Shi, Z.; Stephans, George S. F.; Sumorok, Konstanty C; Tatar, Kaya; Velicanu, Dragos Alexandru; Wang, Jhypyng; Wang, T.W.; Wyslouch, Boleslaw; Luckey, P. David, Jr.; ... Show more Show less![Thumbnail](/bitstream/handle/1721.1/126612/1-s2.0-S0370269319305908-main.pdf.jpg?sequence=4&isAllowed=y)
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A search for long-lived particles decaying to displaced, nonprompt jets and missing transverse momentum is presented. The data sample corresponds to an integrated luminosity of 137 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC in 2016–2018. Candidate signal events containing nonprompt jets are identified using the timing capabilities of the CMS electromagnetic calorimeter. The results of the search are consistent with the background prediction and are interpreted using a gauge-mediated supersymmetry breaking reference model with a gluino next-to-lightest supersymmetric particle. In this model, gluino masses up to 2100, 2500, and 1900 GeV are excluded at 95% confidence level for proper decay lengths of 0.3, 1, and 100 m, respectively. These are the best limits to date for such massive gluinos with proper decay lengths greater than ∼0.5 m.
Date issued
2019-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Department of Mechanical EngineeringJournal
Physics letters. B
Publisher
Elsevier BV
Citation
The CMS Collaboration et al. “Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at √ s = 13 TeV.” Physics letters. B, vol. 797, article 134876 2019 © 2019 The Author(s)
Version: Final published version
ISSN
0370-2693