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Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector
Université Mohamed Premier, Faculté des Sciences; LPTPM, Oujda.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Högenergifysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Högenergifysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Högenergifysik.
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Rekke forfattare: 28772017 (engelsk)Inngår i: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 9, artikkel-id 084Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A search for strongly produced supersymmetric particles using signatures involving multiple energetic jets and either two isolated same-sign leptons (e or μ), or at least three isolated leptons, is presented. The analysis relies on the identification of b-jets and high missing transverse momentum to achieve good sensitivity. A data sample of proton-proton collisions at √s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to a total integrated luminosity of 36.1 fb−1, is used for the search. No significant excess over the Standard Model prediction is observed. The results are interpreted in several simplified supersymmetric models featuring R-parity conservation or R-parity violation, extending the exclusion limits from previous searches. In models considering gluino pair production, gluino masses are excluded up to 1.87 TeV at 95% confidence level. When bottom squarks are pair-produced and decay to a chargino and a top quark, models with bottom squark masses below 700 GeV and light neutralinos are excluded at 95% confidence level. In addition, model-independent limits are set on a possible contribution of new phenomena to the signal region yields.

sted, utgiver, år, opplag, sider
2017. Vol. 9, artikkel-id 084
Emneord [en]
Hadron-Hadron scattering (experiments), Supersymmetry
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-339652DOI: 10.1007/JHEP09(2017)084ISI: 000417789700001OAI: oai:DiVA.org:uu-339652DiVA, id: diva2:1176507
Forskningsfinansiär
Australian Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework Programme
Merknad

ATLAS Collaboration, for complete list of authors see https://doi.org/10.1007/JHEP09(2017)084

Title in Wos: "Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb(-1) of root&ITs&IT = 13 TeV &ITpp&IT collision data with the ATLAS detector".

Tilgjengelig fra: 2018-01-22 Laget: 2018-01-22 Sist oppdatert: 2018-01-22bibliografisk kontrollert

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Bergeås, Elin KuutmannBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, JoakimIsacson, Max F.Madsen, AlexanderMårtensson, MikaelÖhman, HenrikRangel Smith, CamilaDe Bruin, Pedro Sales

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Bergeås, Elin KuutmannBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, JoakimIsacson, Max F.Madsen, AlexanderMårtensson, MikaelÖhman, HenrikRangel Smith, CamilaDe Bruin, Pedro Sales
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