TY  -  
T1  - Search for production of four top quarks in final states with svame-sign or multiple leptons in proton-proton collisions at root s=13 TeV 
SN  -  /  
UR  - http://hdl.handle.net/10138/314804 
T3  -  
A1  - The CMS collaboration; Eerola, P.; Forthomme, L.; Kirschenmann, H.; Osterberg, K.; Voutilainen, M.; Garcia, F.; Havukainen, J.; Heikkila, J. K.; Jarvinen, T.; Kim, M. S.; Kinnunen, R.; Lampen, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Viinikainen, J.; Pekkanen, J.; Sirunyan, A. M.; Tumasyan, A.; Tuuva, T. 
A2  -  
PB  -  
Y1  - 2020 
LA  - eng 
AB  - The standard model (SM) production of four top quarks (tt over bar tt over ba in proton-proton collisions is studied by the CMS Collaboration. The data sample, collected during the 2016-2018 data taking of the LHC, corresponds to an integrated luminosity of 137fb-1 at a center-of-mass energy of 13TeV. The events are required to contain two same-sign charged leptons (electrons or muons) or at least three leptons, and jets. The observed and expected significances for the tt over bar tt over bar si... 
VO  -  
IS  -  
SP  -  
OP  -  
KW  - 114 Physical sciences; MODEL; EXTENSION; INVARIANT; DECAY 
N1  -   
PP  -  
ER  -