Preprint

PUBDB-2022-06279

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Azimuthal correlations in Z+jets events in proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS Collaboration (Collaboration author)DESY*

2022

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Please use a persistent id in citations: doi:10.3204/PUBDB-2022-06279

Report No.: CERN-EP-2022-178; CMS-SMP-21-003; arXiv:2210.16139

Abstract: The production of Z bosons associated with jets is measured in pp collisions at $\sqrt{s}$ = 13 TeV with data recorded with the CMS experiment at the LHC corresponding to an integrated luminosity of 36.3 fb$^{-1}$. The multiplicity of jets with transverse momentum $p_\mathrm{T} \gt$ 30 GeV is measured for different regions of the Z boson's $p_\mathrm{T}$(Z), from lower than 10 GeV to higher than 100 GeV. The azimuthal correlation $\Delta \phi$ between the Z boson and the leading jet, as well as the correlations between the two leading jets are measured in three regions of $p_\mathrm{T}$(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 $p_\mathrm{T}$(Z) regions.

Keyword(s): parton, showers ; parton, interaction ; p p, scattering ; jet, multiplicity ; parton, distribution function ; jet, multiplicity, high ; higher-order, 1 ; Z0, production ; GeV ; angular correlation ; TeV ; transverse momentum ; CERN LHC Coll ; transverse momentum dependence ; correlation ; CMS

Note: Submitted to the European Physical Journal C. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-21-003 (CMS Public Pages)

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz Graduate School for the Structure of Matter (2019_IVF-HIDSS-0002) (2019_IVF-HIDSS-0002)
3. DFG project 390833306 - EXC 2121: Quantum Universe (390833306) (390833306)

Experiment(s):

1. LHC: CMS

Appears in the scientific report 2022

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Tumasyan, A. ; Adam, W. ; Andrejkovic, J. W. ; et al
Azimuthal correlations in Z +jets events in proton–proton collisions at $\sqrt{s} = 13\,\text {Te}\hspace{-.08em}\text {V} $
The European physical journal / C 83(8), 722 (2023) [10.1140/epjc/s10052-023-11833-z]2023     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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