ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Search for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detector

NázevTitle
Search for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detectorSearch for direct top squark pair production in final states with two tau leptons in pp collisions at root s=8 TeV with the ATLAS detector
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
G. Aad, B. Abbott, J. Abdallah, O. Abdinov, K. Augsten, D. Caforio, P. Gallus, J. Guenther, 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. Vlasak, P. Vokáč, Z. Vykydal, M. Zeman
Klíčová slovaKeywords
dynamical supersymmetry breaking, of-mass energies, hadron colliders, e(+)e(-) collisions, symmetry breaking, supergauge transformations, scalar leptons, cross section, MODEL, particle
ExperimentCollaboration
ATLAS
DOIDOI
10.1140/epjc/s10052-016-3897-z
Časopis / citaceJournal / citation
The European Physical Journal C 76(2), 81 (2016) · ISSN 1434-6044
RokYear
2016
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Zkoumání mikrosvěta s využitím infrastruktury CERNInvestigation of the Microworld using the CERN Infrastructure; CERN-CZ - Výzkumná infrastruktura pro experimenty v CERN - LM2015058 (2016–2019)CERN-CZ - Výzkumná infrastruktura pro experimenty v CERN - LM2015058 (2016–2019)
CitovánoCited by
26 (INSPIRE-HEP)
2015: 42016: 42017: 52018: 72019: 22020: 12021: 3
Plný text (open access)Full text (open access)
https://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-016-3897-z.pdf
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb(-1) of proton-proton collision data at root s = 8 TeV. The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95 % confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87 GeV LEP limit to the top squark mass, lower limits between 490 and 650 GeV are placed on the top squark mass within the model considered.

A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb(-1) of proton-proton collision data at root s = 8 TeV. The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95 % confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87 GeV LEP limit to the top squark mass, lower limits between 490 and 650 GeV are placed on the top squark mass within the model considered.

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