Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Search for B - L R-parity-violating top squarks in root s=13 TeV pp collisions with the ATLAS experiment

NázevTitle
Search for B - L R-parity-violating top squarks in root s=13 TeV pp collisions with the ATLAS experimentSearch for B - L R-parity-violating top squarks in root s=13 TeV pp collisions with the ATLAS experiment
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B. Ali, K. Augsten, D. Caforio, P. Gallus, M. Havránek, Z. Hubáček, M. Myška, S. Pospíšil, V. Šimák, T. Slavíček, K. Smolek, M. Solar, A. Sopczak, M. Suk, V. Vacek, P. Vokáč, V. Vrba
DOIDOI
10.1103/PhysRevD.97.032003
Časopis / citaceJournal / citation
PHYSICAL REVIEW D. 2018, 97(3), ISSN 2470-0010.
RokYear
2018
JazykLanguage
eng
WoSWoS
000424190800001
ScopusScopus
2-s2.0-85052896952
RIVRIV
RIV/68407700:21220/18:00319440!RIV19-MSM-21220___
ProjektProject
Získávání nových poznatků o mikrosvětě v infrastruktuře CERNAcquiring new pieces of knowledge about micro-world in CERN research infrastructure

AbstraktAbstract

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb(-1) of proton-proton collisions at a center-of-mass energy of root s = 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb(-1) of proton-proton collisions at a center-of-mass energy of root s = 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.