Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector

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

doi:10.1103/PhysRevLett.109.211802

Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector

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

Experimental Particle Physics

47 Citations (Scopus)

Abstract

A search for direct pair production of supersymmetric top squarks (t ₁) is presented, assuming the t₁ decays into a top quark and the lightest supersymmetric particle, χ10, and that both top quarks decay to purely hadronic final states. A total of 16 (4) events are observed compared to a predicted standard model background of 13.5-3.6+3.7(4.4-1.3+1.7) events in two signal regions based on Ldt=4.7fb^-1 of pp collision data taken at √s=7TeV with the ATLAS detector at the LHC. An exclusion region in the t₁ versus χ10 mass plane is evaluated: 370<m_t1<465GeV is excluded for m_χ10∼0GeV while m_t1=445GeV is excluded for m_χ10≤50GeV.

Original language	English
Journal	Physical Review Letters
Volume	109
Issue number	21
Pages (from-to)	211802
Number of pages	18
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.109.211802
Publication status	Published - 20 Nov 2012

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Aad, G., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. D., Hansen, J. R., Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Mehlhase, S., Klinkby, E. B., Petersen, T. C., Nilsson, B. S., Xella, S., & Løvschall-Jensen, A. E. (2012). Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector. Physical Review Letters, 109(21), 211802. https://doi.org/10.1103/PhysRevLett.109.211802

Aad, G, Dam, M , Hansen, JB , Hansen, PH , Hansen, JD , Hansen, JR, Heisterkamp, SJF, Jørgensen, MD, Boelaert, NMP, Mehlhase, S, Klinkby, EB, Petersen, TC, Nilsson, BS, Xella, S & Løvschall-Jensen, AE 2012, 'Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector', Physical Review Letters, vol. 109, no. 21, pp. 211802. https://doi.org/10.1103/PhysRevLett.109.211802

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title = "Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector",

abstract = "A search for direct pair production of supersymmetric top squarks (t 1) is presented, assuming the t1 decays into a top quark and the lightest supersymmetric particle, χ10, and that both top quarks decay to purely hadronic final states. A total of 16 (4) events are observed compared to a predicted standard model background of 13.5-3.6+3.7(4.4-1.3+1.7) events in two signal regions based on Ldt=4.7fb-1 of pp collision data taken at √s=7TeV with the ATLAS detector at the LHC. An exclusion region in the t1 versus χ10 mass plane is evaluated: 370t1<465GeV is excluded for mχ10∼0GeV while mt1=445GeV is excluded for mχ10≤50GeV.",

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 Heisterkamp, {Simon Johann Franz} and J{\o}rgensen, {Morten Dam} and Boelaert, {Nele Maria Philomena} and Sascha Mehlhase and Klinkby, {Esben Bryndt} and Petersen, {Troels Christian} and Nilsson, {Bj{\"o}rn Stefan} and Stefania Xella and L{\o}vschall-Jensen, {Ask Emil}",

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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 - Heisterkamp, Simon Johann Franz

AU - Jørgensen, Morten Dam

AU - Boelaert, Nele Maria Philomena

AU - Mehlhase, Sascha

AU - Klinkby, Esben Bryndt

AU - Petersen, Troels Christian

AU - Nilsson, Björn Stefan

AU - Xella, Stefania

AU - Løvschall-Jensen, Ask Emil

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N2 - A search for direct pair production of supersymmetric top squarks (t 1) is presented, assuming the t1 decays into a top quark and the lightest supersymmetric particle, χ10, and that both top quarks decay to purely hadronic final states. A total of 16 (4) events are observed compared to a predicted standard model background of 13.5-3.6+3.7(4.4-1.3+1.7) events in two signal regions based on Ldt=4.7fb-1 of pp collision data taken at √s=7TeV with the ATLAS detector at the LHC. An exclusion region in the t1 versus χ10 mass plane is evaluated: 370t1<465GeV is excluded for mχ10∼0GeV while mt1=445GeV is excluded for mχ10≤50GeV.

AB - A search for direct pair production of supersymmetric top squarks (t 1) is presented, assuming the t1 decays into a top quark and the lightest supersymmetric particle, χ10, and that both top quarks decay to purely hadronic final states. A total of 16 (4) events are observed compared to a predicted standard model background of 13.5-3.6+3.7(4.4-1.3+1.7) events in two signal regions based on Ldt=4.7fb-1 of pp collision data taken at √s=7TeV with the ATLAS detector at the LHC. An exclusion region in the t1 versus χ10 mass plane is evaluated: 370t1<465GeV is excluded for mχ10∼0GeV while mt1=445GeV is excluded for mχ10≤50GeV.

U2 - 10.1103/PhysRevLett.109.211802

DO - 10.1103/PhysRevLett.109.211802

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Search for a Supersymmetric Partner to the Top Quark in Final States with Jets and Missing Transverse Momentum at root s=7 TeV with the ATLAS Detector

Abstract

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