Search for R-parity-violating supersymmetric particles in multi-jet final states produced in p-p collisions at √s =13 TeV using the ATLAS detector at the LHC

Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Search for R-parity-violating supersymmetric particles in multi-jet final states produced in p-p collisions at √s =13 TeV using the ATLAS detector at the LHC. Physics letters. B, 785, pp. 136-158. Elsevier 10.1016/j.physletb.2018.08.021

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Results of a search for gluino pair production with subsequent R-parity-violating decays to quarks are presented. This search uses 36.1 fb⁻¹ of data collected by the ATLAS detector in proton–proton collisions with a centre-of-mass energy of √s=13 TeV at the LHC. The analysis is performed using requirements on the number of jets and the number of jets tagged as containing a b-hadron as well as a topological observable formed by the scalar sum of masses of large-radius jets in the event. No significant excess above the expected Standard Model background is observed. Limits are set on the production of gluinos in models with the R-parity-violating decays of either the gluino itself (direct decay) or the neutralino produced in the R-parity-conserving gluino decay (cascade decay). In the gluino cascade decay model, gluino masses below 1850 GeV are excluded for 1000 GeV neutralino mass. For the gluino direct decay model, the 95% confidence level upper limit on the cross section times branching ratio varies between 0.80 fbat mg̃ = 900 GeV and 0.011 fb at mg̃ = 1800 GeV.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Haug, Sigve; Weber, Michael and Beck, Hans Peter

Subjects:

500 Science > 530 Physics

ISSN:

0370-2693

Publisher:

Elsevier

Language:

English

Submitter:

BORIS Import LHEP

Date Deposited:

25 Jun 2019 11:12

Last Modified:

13 Mar 2021 17:18

Publisher DOI:

10.1016/j.physletb.2018.08.021

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwaehnt

BORIS DOI:

10.7892/boris.129058

URI:

https://boris.unibe.ch/id/eprint/129058

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