TY - JOUR
T1 - Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector
AU - Aad, G.
AU - Abbott, B.
AU - Abdallah, J.
AU - Abdel Khalek, S.
AU - Abdinov, O.
AU - Aben, R.
AU - Abi, B.
AU - Abolins, M.
AU - AbouZeid, O.S.
AU - Abramowicz, H.
AU - Dam, Mogens
AU - Hansen, Jørn Dines
AU - Hansen, Jørgen Beck
AU - Xella, Stefania
AU - Hansen, Peter Henrik
AU - Petersen, Troels Christian
AU - Thomsen, Lotte Ansgaard
AU - Mehlhase, Sascha
AU - Jørgensen, Morten Dam
AU - Pingel, Almut Maria
AU - Løvschall-Jensen, Ask Emil
AU - Alonso Diaz, Alejandro
AU - Monk, James William
AU - Pedersen, Lars Egholm
AU - Wiglesworth, Graig
AU - Galster, Gorm Aske Gram Krohn
PY - 2015/5/29
Y1 - 2015/5/29
N2 - Double-differential three-jet production cross-sections are measured in proton–proton collisions at a centreof-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),inbins 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-kt 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.
AB - Double-differential three-jet production cross-sections are measured in proton–proton collisions at a centreof-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),inbins 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-kt 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.
U2 - 10.1140/epjc/s10052-015-3363-3
DO - 10.1140/epjc/s10052-015-3363-3
M3 - Journal article
C2 - 26041976
SN - 1434-6044
VL - 75
JO - The European Physical Journal C: Particles and Fields
JF - The European Physical Journal C: Particles and Fields
IS - 5
M1 - 228
ER -