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 root 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 data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV.

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in root s=13 TeV pp collisions with the ATLAS detector / Aad, G., Abbott, B., Abbott, D.C., Abud, A.A., Abeling, K., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Achkar, B., Adachi, S., Adam, L., Bourdarios, C.A., Adamczyk, L., Adamek, L., Adelman, J., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:7(2020). [10.1103/PhysRevD.101.072001]

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

Artoni, G.;Bagnaia, P.;Betti, A.;Bini, C.;De Cecco, S.;Di Bello, F. A.;Francescato, S.;Gentile, S.;Giagu, S.;Kado, M.;Lacava, F.;Luci, C.;Martinelli, L.;Messina, A.;Policicchio, A.;Vannicola, D.;
2020

Abstract

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 root 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 data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV.
2020
E(+)E(-) COLLISIONS; CROSS-SECTION; SUPERSYMMETRY; EXTENSION; DECAY
01 Pubblicazione su rivista::01a Articolo in rivista
Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in root s=13 TeV pp collisions with the ATLAS detector / Aad, G., Abbott, B., Abbott, D.C., Abud, A.A., Abeling, K., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Achkar, B., Adachi, S., Adam, L., Bourdarios, C.A., Adamczyk, L., Adamek, L., Adelman, J., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:7(2020). [10.1103/PhysRevD.101.072001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1493168
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