Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC

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

doi:10.1007/JHEP12(2012)086

Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC

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

Experimental Particle Physics

51 Citations (Scopus)

Abstract

A search is conducted for hadronic three-body decays of a new massive coloured particle in √s = 7 TeV pp collisions at the LHC using an integrated luminosity of 4.6 fb^-1 collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Model expectations and limits are set on the allowed gluino mass.[Figure not available: see fulltext.]

Original language	English
Journal	Journal of High Energy Physics (Online)
Volume	2012
Issue number	12
Pages (from-to)	086
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP12(2012)086
Publication status	Published - 1 Dec 2012

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Aad, G., Abajyan, T., Abbott, B., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. D., Hansen, J. R., Boelaert, N. M. P., Klinkby, E. B., Heisterkamp, S. J. F., Jørgensen, M. D., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, T. C., & Xella, S. (2012). Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC. Journal of High Energy Physics (Online), 2012(12), 086. https://doi.org/10.1007/JHEP12(2012)086

Aad, G, Abajyan, T, Abbott, B, Dam, M , Hansen, JB , Hansen, PH , Hansen, JD , Hansen, JR, Boelaert, NMP, Klinkby, EB, Heisterkamp, SJF, Jørgensen, MD, Løvschall-Jensen, AE, Mehlhase, S, Nilsson, BS, Petersen, TC & Xella, S 2012, 'Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC', Journal of High Energy Physics (Online), vol. 2012, no. 12, pp. 086. https://doi.org/10.1007/JHEP12(2012)086

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title = "Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC",

abstract = "A search is conducted for hadronic three-body decays of a new massive coloured particle in √s = 7 TeV pp collisions at the LHC using an integrated luminosity of 4.6 fb-1 collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Model expectations and limits are set on the allowed gluino mass.[Figure not available: see fulltext.]",

author = "G. Aad and T. Abajyan and B. Abbott 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 Klinkby, {Esben Bryndt} and Heisterkamp, {Simon Johann Franz} and J{\o}rgensen, {Morten Dam} and L{\o}vschall-Jensen, {Ask Emil} and Sascha Mehlhase and Nilsson, {Bj{\"o}rn Stefan} and Petersen, {Troels Christian} and Stefania Xella",

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T1 - Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

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 - Klinkby, Esben Bryndt

AU - Heisterkamp, Simon Johann Franz

AU - Jørgensen, Morten Dam

AU - Løvschall-Jensen, Ask Emil

AU - Mehlhase, Sascha

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Xella, Stefania

PY - 2012/12/1

Y1 - 2012/12/1

N2 - A search is conducted for hadronic three-body decays of a new massive coloured particle in √s = 7 TeV pp collisions at the LHC using an integrated luminosity of 4.6 fb-1 collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Model expectations and limits are set on the allowed gluino mass.[Figure not available: see fulltext.]

AB - A search is conducted for hadronic three-body decays of a new massive coloured particle in √s = 7 TeV pp collisions at the LHC using an integrated luminosity of 4.6 fb-1 collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Model expectations and limits are set on the allowed gluino mass.[Figure not available: see fulltext.]

U2 - 10.1007/JHEP12(2012)086

DO - 10.1007/JHEP12(2012)086

M3 - Journal article

SN - 1126-6708

VL - 2012

SP - 086

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 12

ER -

Search for pair production of massive particles decaying into three quarks with the ATLAS detector in root s=7 TeV pp collisions at the LHC

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