Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s=8 TeV

0501138 - FZÚ 2019 RIV US eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2891 authors
Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s=8 TeV.
Journal of High Energy Physics. Roč. 2017, č. 12 (2017), s. 1-80, č. článku 59. ISSN 1029-8479. E-ISSN 1029-8479
R&D Projects: GA MŠMT LM2015058
Institutional support: RVO:68378271
Keywords : ATLAS * CERN LHC Coll * differential cross section: measured * mass dependence * rapidity dependence * angular dependence * pole * experimental results
OECD category: Particles and field physics
Impact factor: 5.541, year: 2017
Method of publishing: Open access

This paper presents a measurement of the triple-differential cross section for the Drell-Yan process Z/γ∗ → ℓ+ ℓ− where ℓ is an electron or a muon. The measurement is performed for invariant masses of the lepton pairs, mℓℓ , between 46 and 200 GeV using a sample of 20.2 fb−1 of pp collisions data at a centre-of-mass energy of s√=8 TeV collected by the ATLAS detector at the LHC in 2012. The data are presented in bins of invariant mass, absolute dilepton rapidity, |yℓℓ|, and the angular variable cos θ∗ between the outgoing lepton and the incoming quark in the Collins-Soper frame. The measurements are performed in the range |yℓℓ | < 2.4 in the muon channel, and extended to |yℓℓ | < 3.6 in the electron channel. The cross sections are used to determine the Z boson forward-backward asymmetry as a function of |yℓℓ | and mℓℓ .
Permanent Link: http://hdl.handle.net/11104/0293136