Search for new phenomena in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 13 TeV pp collisions with the ATLAS detectorVise andre og tillknytning
Rekke forfattare: 28422017 (engelsk)Inngår i: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 77, nr 3, artikkel-id 144Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
Two searches for new phenomena in final states containing a same-flavour opposite-sign lepton (electron or muon) pair, jets, and large missing transverse momentum are presented. These searches make use of proton-proton collision data, collected during 2015 and 2016 at a centre-of-mass energy root s = 13 TeV by the ATLAS detector at the large hadron collider, which correspond to an integrated luminosity of 14.7 fb(-1). Both searches target the pair production of supersymmetric particles, squarks or gluinos, which decay to final states containing a same-flavour opposite-sign lepton pair via one of two mechanisms: a leptonically decaying Z boson in the final state, leading to a peak in the dilepton invariant-mass distribution around the Z boson mass; and decays of neutralinos (e.g.. (chi) over tilde (0)(2) -> l(+)l(-1)(chi) over tilde (0)(1)), yielding a kinematic endpoint in the dilepton invariant-mass spectrum. The data are found to be consistent with the Standard Model expectation. Results are interpreted in simplified models of gluino-pair (squark-pair) production, and provide sensitivity to gluinos (squarks) with masses as large as 1.70 TeV (980 GeV).
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2017. Vol. 77, nr 3, artikkel-id 144
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-327264DOI: 10.1140/epjc/s10052-017-4700-5ISI: 000396119600002Scopus ID: 2-s2.0-85014651064OAI: oai:DiVA.org:uu-327264DiVA, id: diva2:1134341
Merknad
Title in WoS: Search for new phenomena in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in root s=13 TeV pp collisions with the ATLAS detector
ATLAS Collaboration, for complete list of authors see https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-017-4700-5
2017-08-182017-08-182022-01-29bibliografisk kontrollert