Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector

ATLAS, Collaboration; Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Kabana, Sonja; Marti, Lukas; Meloni, Federico; Pretzl, Klaus-Peter; Schneider, Basil; Stramaglia, Maria Elena; Stucci, Stefania; Weber, Michael (2015). Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector. European physical journal. C - particles and fields, C75(5), p. 228. EDP Sciences 10.1140/epjc/s10052-015-3363-3

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Double-differential three-jet production cross-sections are measured in proton-proton collisions at a centre-of-mass energy of √s=7 TeV using the ATLAS detector at the Large Hadron Collider. The measurements are presented as a function of the three-jet mass (m jjj ) , in bins of the sum of the absolute rapidity separations between the three leading jets (|Y ∗ |) . Invariant masses extending up to 5 TeV are reached for 8<|Y ∗ |<10 . These measurements use a sample of data recorded using the ATLAS detector in 2011, which corresponds to an integrated luminosity of 4.51 fb⁻¹. Jets are identified using the anti-k t algorithm with two different jet radius parameters, R=0.4 and R=0.6. The dominant uncertainty in these measurements comes from the jet energy scale. Next-to-leading-order QCD calculations corrected to account for non-perturbative effects are compared to the measurements. Good agreement is found between the data and the theoretical predictions based on most of the available sets of parton distribution functions, over the full kinematic range, covering almost seven orders of magnitude in the measured cross-section values.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Marti, Lukas; Meloni, Federico; Pretzl, Klaus-Peter; Schneider, Basil; Stramaglia, Maria Elena; Stucci, Stefania and Weber, Michael

Subjects:

500 Science > 530 Physics

ISSN:

1434-6044

Publisher:

EDP Sciences

Language:

English

Submitter:

Annette Krebs-Wegenast

Date Deposited:

12 Sep 2016 09:47

Last Modified:

28 Nov 2020 02:27

Publisher DOI:

10.1140/epjc/s10052-015-3363-3

ArXiv ID:

1411.1855

Additional Information:

Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt

BORIS DOI:

10.7892/boris.87678

URI:

https://boris.unibe.ch/id/eprint/87678

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