Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider

NázevTitle
ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron ColliderATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
G. Aad, B. Abbott, J. Abdallah, O. Abdinov, K. Augsten, D. Caforio, P. Gallus, J. Günther, Z. Hubáček, J. Jakůbek, Z. Kohout, M. Myška, S. Pospíšil, F. Seifert, V. Šimák, T. Slavíček, K. Smolek, M. Solar, J. Šolc, A. Sopczak, B. Sopko, V. Sopko, M. Suk, D. Tureček, V. Vacek, M. Šuta, P. Vokáč, Z. Vykydal, M. Zeman
DOIDOI
10.1140/epjc/s10052-015-3726-9
Časopis / citaceJournal / citation
European Physical Journal C. 2015, 75(10), ISSN 1434-6044.
RokYear
2015
JazykLanguage
eng
WoSWoS
000379515400001
ScopusScopus
2-s2.0-84946560983
RIVRIV
RIV/68407700:21220/15:00310405!RIV17-MSM-21220___
ProjektProject
Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN

AbstraktAbstract

This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton-proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb(-1) of collisions at a centre-of-mass energy of root s = 8 TeV, although in some case an additional 4.7 fb(-1) of collision data at root s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.

This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton-proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb(-1) of collisions at a centre-of-mass energy of root s = 8 TeV, although in some case an additional 4.7 fb(-1) of collision data at root s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.