Search for chargino-neutralino production with mass splittings near the 
electroweak scale in three-lepton final states in $\sqrt{s}$ = 13 TeV $pp$ 
collisions with the ATLAS detector

Atlas Collaboration,

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Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector

MPG-Autoren

Atlas Collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Zitation

Atlas Collaboration (2020). Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector. Physical Review D, 101, 072001. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2019-262.

Zitierlink: https://hdl.handle.net/21.11116/0000-0008-1A9F-9

Zusammenfassung

A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell $W$ and $Z$ bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of $\sqrt{s}$ = 13 TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb$^{-1}$. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015-2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full dataset are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV.