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Search for charginos and neutralinos in final states with two boosted hadronically decaying bosons and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector
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ATLAS Collaboration (Including: Becker, K., Facini, Gabriel, Harrison, P. F., Jones, E., Martin, T. A., Morgenstern, S., Murray, W. J., Spangenberg, Martin and Vladimirov, V. E.). (2021) Search for charginos and neutralinos in final states with two boosted hadronically decaying bosons and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector. Physical Review D (Particles, Fields, Gravitation and Cosmology), 104 (11). 112010. doi:10.1103/PhysRevD.104.112010 ISSN 1550-7998.
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PhysRevD.104.112010.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2161Kb) | Preview |
Official URL: https://doi.org/10.1103/PhysRevD.104.112010
Abstract
A search for charginos and neutralinos at the Large Hadron Collider using fully hadronic final states and missing transverse momentum is reported. Pair-produced charginos or neutralinos are explored, each decaying into a high-pT Standard Model weak boson. Fully hadronic final states are studied to exploit the advantage of the large branching ratio, and the efficient rejection of backgrounds by identifying the high-pT bosons using large-radius jets and jet substructure information. An integrated luminosity of 139 fb^-1 of proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 13 TeV is used. No significant excess is found beyond the Standard Model expectation. Exclusion limits at the 95% confidence level are set on wino or higgsino production with various assumptions about the decay branching ratios and the type of lightest supersymmetric particle. A wino (higgsino) mass up to 1060 (900) GeV is excluded when the lightest supersymmetry particle mass is below 400 (240) GeV and the mass splitting is larger than 400 (450) GeV. The sensitivity to high-mass winos and higgsinos is significantly extended relative to previous LHC searches using other final states.
| Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||||||||||||||||||||||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Proton-proton interactions, Particles (Nuclear physics), Neutrinos, Large Hadron Collider (France and Switzerland) , Bosons , Supersymmetry | ||||||||||||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | ||||||||||||||||||||||||||||||||||||||||||
| Publisher: | American Physical Society | ||||||||||||||||||||||||||||||||||||||||||
| ISSN: | 1550-7998 | ||||||||||||||||||||||||||||||||||||||||||
| Official Date: | 27 December 2021 | ||||||||||||||||||||||||||||||||||||||||||
| Dates: |
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| Volume: | 104 | ||||||||||||||||||||||||||||||||||||||||||
| Number: | 11 | ||||||||||||||||||||||||||||||||||||||||||
| Article Number: | 112010 | ||||||||||||||||||||||||||||||||||||||||||
| DOI: | 10.1103/PhysRevD.104.112010 | ||||||||||||||||||||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||||||||||||||||||||||||||
| Date of first compliant deposit: | 10 February 2022 | ||||||||||||||||||||||||||||||||||||||||||
| Date of first compliant Open Access: | 10 February 2022 | ||||||||||||||||||||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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