Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV

G. Aad; Mogens Dam; Jørgen Beck Hansen; Peter Henrik Hansen; Jørn Dines Hansen; John Renner Hansen; Nele Maria Philomena Boelaert; Simon Johann Franz Heisterkamp; Sascha Mehlhase; Morten Dam Jørgensen; Björn Stefan Nilsson; Esben Bryndt Klinkby; Troels Christian Petersen; Ask Emil Løvschall-Jensen; Stefania Xella

doi:10.1103/PhysRevLett.108.241802

Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV

G. Aad, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, Jørn Dines Hansen, John Renner Hansen, Nele Maria Philomena Boelaert, Simon Johann Franz Heisterkamp, Sascha Mehlhase, Morten Dam Jørgensen, Björn Stefan Nilsson, Esben Bryndt Klinkby, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Stefania Xella

33 Citationer (Scopus)

Abstract

A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05fb^-1 of integrated luminosity from pp collisions at √s=7TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L.

Originalsprog	Engelsk
Tidsskrift	Physical Review Letters
Vol/bind	108
Udgave nummer	24
Sider (fra-til)	241802
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.108.241802
Status	Udgivet - 15 jun. 2012

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10.1103/PhysRevLett.108.241802

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Aad, G., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. D., Hansen, J. R., Boelaert, N. M. P., Heisterkamp, S. J. F., Mehlhase, S., Jørgensen, M. D., Nilsson, B. S., Klinkby, E. B., Petersen, T. C., Løvschall-Jensen, A. E., & Xella, S. (2012). Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV. Physical Review Letters, 108(24), 241802. https://doi.org/10.1103/PhysRevLett.108.241802

Aad, G, Dam, M , Hansen, JB , Hansen, PH , Hansen, JD , Hansen, JR, Boelaert, NMP, Heisterkamp, SJF, Mehlhase, S, Jørgensen, MD, Nilsson, BS, Klinkby, EB, Petersen, TC, Løvschall-Jensen, AE & Xella, S 2012, 'Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV', Physical Review Letters, bind 108, nr. 24, s. 241802. https://doi.org/10.1103/PhysRevLett.108.241802

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title = "Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV",

abstract = "A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05fb-1 of integrated luminosity from pp collisions at √s=7TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L.",

author = "G. Aad and Mogens Dam and Hansen, {J{\o}rgen Beck} and Hansen, {Peter Henrik} and Hansen, {J{\o}rn Dines} and Hansen, {John Renner} and Boelaert, {Nele Maria Philomena} and Heisterkamp, {Simon Johann Franz} and Sascha Mehlhase and J{\o}rgensen, {Morten Dam} and Nilsson, {Bj{\"o}rn Stefan} and Klinkby, {Esben Bryndt} and Petersen, {Troels Christian} and L{\o}vschall-Jensen, {Ask Emil} and Stefania Xella",

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doi = "10.1103/PhysRevLett.108.241802",

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AU - Aad, G.

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Hansen, Jørn Dines

AU - Hansen, John Renner

AU - Boelaert, Nele Maria Philomena

AU - Heisterkamp, Simon Johann Franz

AU - Mehlhase, Sascha

AU - Jørgensen, Morten Dam

AU - Nilsson, Björn Stefan

AU - Klinkby, Esben Bryndt

AU - Petersen, Troels Christian

AU - Løvschall-Jensen, Ask Emil

AU - Xella, Stefania

PY - 2012/6/15

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N2 - A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05fb-1 of integrated luminosity from pp collisions at √s=7TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L.

AB - A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05fb-1 of integrated luminosity from pp collisions at √s=7TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L.

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Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV

Abstract

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