Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at √s = 8 and 13 TeV

0537365 - FZÚ 2021 RIV US eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - 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 2926 authors
Measurement of long-range two-particle azimuthal correlations in Z-boson tagged pp collisions at √s = 8 and 13 TeV.
European Physical Journal C. Roč. 80, č. 1 (2020), s. 1-32, č. článku 64. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LTT17018
Research Infrastructure: CERN-CZ II - 90104
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * LHC * transverse momentum * correlation function * two-particle
OECD category: Particles and field physics
Impact factor: 4.590, year: 2020
Method of publishing: Open access

Results are presented from the measurement by ATLAS of long-range (∣Δη∣>2|Delta eta |>2∣Δη∣>2) dihadron angular correlations in s=8sqrt{s}=8s ​=8 and 13 TeV pp collisions containing a Z boson. The analysis is performed using 19.4 fb−1mathrm {fb}^{-1}fb−1 of s=8sqrt{s}=8s ​=8 TeV data recorded during Run 1 of the LHC and 36.1 fb−1mathrm {fb}^{-1}fb−1 of s=13sqrt{s}=13s ​=13 TeV data recorded during Run 2. Two-particle correlation functions are measured as a function of relative azimuthal angle over the relative pseudorapidity range 2<∣Δη∣<52<|Delta eta |<52<∣Δη∣<5 for different intervals of charged-particle multiplicity and transverse momentum. The measurements are corrected for the presence of background charged particles generated by collisions that occur during one passage of two colliding proton bunches in the LHC.
Permanent Link: http://hdl.handle.net/11104/0315083