Search For Supersymmetry İn Events With At Least Three Electrons Or Muons, Jets, And Missing Transverse Momentum İn Proton-Proton Collisions At S?=13s=13 Tev

Bilki, Burak

Search For Supersymmetry İn Events With At Least Three Electrons Or Muons, Jets, And Missing Transverse Momentum İn Proton-Proton Collisions At S?=13s=13 Tev

dc.authorid	249433	en_US
dc.contributor.author	Bilki, Burak
dc.date.accessioned	2019-03-28T13:23:01Z
dc.date.available	2019-03-28T13:23:01Z
dc.date.issued	2018
dc.department	İstanbul Beykent Üniversitesi	en_US
dc.description.abstract	A search for new physics is carried out in events with at least three electrons or muons in any combination, jets, and missing transverse momentum. Results are based on the sample of proton-proton collision data produced by the LHC at a center-of-mass energy of 13 TeV and collected by the CMS experiment in 2016. The data sample analyzed corresponds to an integrated luminosity of 35.9 fb?1. Events are classified according to the number of b jets, missing transverse momentum, hadronic transverse momentum, and the invariant mass of same-flavor dilepton pairs with opposite charge. No significant excess above the expected standard model background is observed. Exclusion limits at 95% confidence level are computed for four different supersymmetric simplified models with pair production of gluinos or third-generation squarks. In the model with gluino pair production, with subsequent decays into a top quark-antiquark pair and a neutralino, gluinos with masses smaller than 1610 GeV are excluded for a massless lightest supersymmetric particle. In the case of bottom squark pair production, the bottom squark masses are excluded up to 840 GeV for charginos lighter than 200 GeV. For a simplified model of heavy top squark pair production, the t~2t~2 mass is excluded up to 720, 780, or 710 GeV for models with an exclusive t~2?t~1Ht~2?t~1H decay, an exclusive t~2?t~1Zt~2?t~1Z decay, or an equally probable mix of those two decays. In order to provide a simplified version of the analysis for easier interpretation, a small set of aggregate signal regions also has been defined, providing a compromise between simplicity and analysis sensitivity.	en_US
dc.identifier.doi	10.1007/JHEP02(2018)067
dc.identifier.issn	1029-8479
dc.identifier.scopus	2-s2.0-85042405520	en_US
dc.identifier.scopusquality	Q1	en_US
dc.identifier.uri	https://doi.org/10.1007/JHEP02(2018)067
dc.identifier.wos	WOS:000425381000004	en_US
dc.identifier.wosquality	Q1	en_US
dc.indekslendigikaynak	Web of Science	en_US
dc.indekslendigikaynak	Scopus	en_US
dc.language.iso	en	en_US
dc.publisher	Springer Link	tr_TR
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı	en_US
dc.subject	Hadron-Hadron scattering	tr_TR
dc.subject	Supersymmetry	tr_TR
dc.subject	Lepton production	tr_TR
dc.title	Search For Supersymmetry İn Events With At Least Three Electrons Or Muons, Jets, And Missing Transverse Momentum İn Proton-Proton Collisions At S?=13s=13 Tev	en_US
dc.type	Article	en_US