A search for tt¯ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at s√=7 TeV with the ATLAS detector

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Experimental Particle Physics

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art%3A10.1007%2FJHEP09%282012%29041
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https://doi.org/10.1007/JHEP09(2012)041
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Hadron-Hadron Scattering

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A search for tt¯ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at s√=7 TeV with the ATLAS detector. / The ATLAS collaboration ; Ferrando, James.
In: Journal of High Energy Physics, Vol. 2012, No. 9, 41, 09.2012.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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@article{408adc39f25d4025a9650ae863721860,

title = "A search for tt¯ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at s√=7 TeV with the ATLAS detector",

abstract = "A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb−1 of proton-proton collisions at s√=7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets final state is specifically designed for the particular topology that arises from the decay of highly boosted top quarks. The observed tt¯ invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the tt¯ production rate through new massive states. An upper limit of 0.7 pb is set on the production cross section times branching fraction of a narrow 1 TeV resonance. A Kaluza-Klein gluon with a mass smaller than 1.5 TeV is excluded.",

keywords = "Hadron-Hadron Scattering",

author = "Adam Barton and Guennadi Borissov and Eva Bouhova-Thacker and Alexandre Chilingarov and Ruth Davidson and {de Mora}, Lee and William Dearnaley and Harald Fox and Robert Henderson and Gareth Hughes and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Robin Long and Peter Love and Harvey Maddocks and Maria Smizanska and James Walder and {The ATLAS collaboration} and James Ferrando",

note = "This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.",

year = "2012",

month = sep,

doi = "10.1007/JHEP09(2012)041",

language = "English",

volume = "2012",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag",

number = "9",

}

RIS

TY - JOUR

T1 - A search for tt¯ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at s√=7 TeV with the ATLAS detector

AU - Barton, Adam

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Eva

AU - Chilingarov, Alexandre

AU - Davidson, Ruth

AU - de Mora, Lee

AU - Dearnaley, William

AU - Fox, Harald

AU - Henderson, Robert

AU - Hughes, Gareth

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin

AU - Love, Peter

AU - Maddocks, Harvey

AU - Smizanska, Maria

AU - Walder, James

AU - The ATLAS collaboration

AU - Ferrando, James

N1 - This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

PY - 2012/9

Y1 - 2012/9

N2 - A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb−1 of proton-proton collisions at s√=7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets final state is specifically designed for the particular topology that arises from the decay of highly boosted top quarks. The observed tt¯ invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the tt¯ production rate through new massive states. An upper limit of 0.7 pb is set on the production cross section times branching fraction of a narrow 1 TeV resonance. A Kaluza-Klein gluon with a mass smaller than 1.5 TeV is excluded.

AB - A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb−1 of proton-proton collisions at s√=7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets final state is specifically designed for the particular topology that arises from the decay of highly boosted top quarks. The observed tt¯ invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the tt¯ production rate through new massive states. An upper limit of 0.7 pb is set on the production cross section times branching fraction of a narrow 1 TeV resonance. A Kaluza-Klein gluon with a mass smaller than 1.5 TeV is excluded.

KW - Hadron-Hadron Scattering

U2 - 10.1007/JHEP09(2012)041

DO - 10.1007/JHEP09(2012)041

M3 - Journal article

VL - 2012

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 9

M1 - 41

ER -

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