Azimuthal correlations in Z +jets events in proton-proton collisions at s=13TeV

. 2023 ; 83 (8) : 722. [epub] 20230811

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid37578844

The production of Z bosons associated with jets is measured in pp collisions at s=13TeV with data recorded with the CMS experiment at the LHC corresponding to an integrated luminosity of 36.3fb-1. The multiplicity of jets with transverse momentum pT>30GeV is measured for different regions of the Z boson's pT(Z), from lower than 10GeV to higher than 100GeV. The azimuthal correlation Δϕ between the Z boson and the leading jet, as well as the correlations between the two leading jets are measured in three regions of pT(Z). The measurements are compared with several predictions at leading and next-to-leading orders, interfaced with parton showers. Predictions based on transverse-momentum dependent parton distributions and corresponding parton showers give a good description of the measurement in the regions where multiple parton interactions and higher jet multiplicities are not important. The effects of multiple parton interactions are shown to be important to correctly describe the measured spectra in the low pT(Z) regions.

1 Physikalisches Institut RWTH Aachen University Aachen Germany

3 Physikalisches Institut A RWTH Aachen University Aachen Germany

3 Physikalisches Institut B RWTH Aachen University Aachen Germany

Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt

Adiyaman University Adiyaman Turkey

AGH University of Science and Technology Faculty of Computer Science Electronics and Telecommunications Kraków Poland

Ain Shams University Cairo Egypt

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Baylor University Waco TX USA

Beihang University Beijing China

Benemerita Universidad Autonoma de Puebla Puebla Mexico

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Bhabha Atomic Research Centre Mumbai India

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Bogazici University Istanbul Turkey

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Bozok Universitetesi Rektörlügü Yozgat Turkey

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British University in Egypt Cairo Egypt

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CERN European Organization for Nuclear Research Geneva Switzerland

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Chonnam National University Institute for Universe and Elementary Particles Kwangju Korea

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Consejo Nacional de Ciencia y Tecnología Mexico City Mexico

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Department of Applied Physics Faculty of Science and Technology Universiti Kebangsaan Malaysia Bangi Malaysia

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Deutsches Elektronen Synchrotron Hamburg Germany

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Institute of Nuclear Physics of the Uzbekistan Academy of Sciences Tashkent Uzbekistan

Institute of Nuclear Research ATOMKI Debrecen Hungary

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