Azimuthal correlations in Z +jets events in proton–proton collisions at √s = 13 TeV
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10052_2023_Article_11833.pdf
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Author(s)
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Damanakis, K.
Dragicevic, M.
Valle, A. E. D.
Frühwirth, R.
Jeitler, M.
Date Issued
August 11, 2023
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2023 Aug 11;83(8):722
Version
Final published version
Abstract
Abstract
The production of Z bosons associated with jets is measured in
$$\text {p}\text {p}$$
pp
collisions at
$$\sqrt{s}=13\,\text {Te}\hspace{-.08em}\text {V} $$
s
=
13
Te
V
with data recorded with the CMS experiment at the LHC corresponding to an integrated luminosity of 36.3
$$\,\text {fb}^{-1}$$
fb
-
1
. The multiplicity of jets with transverse momentum
$$p_{\textrm{T}} > 30\,\text {Ge}\hspace{-.08em}\text {V} $$
p
T
>
30
Ge
V
is measured for different regions of the Z boson’s
$$p_{\textrm{T}} (\text {Z })$$
p
T
(
Z
)
, from lower than 10
$$\,\text {Ge}\hspace{-.08em}\text {V}$$
Ge
V
to higher than 100
$$\,\text {Ge}\hspace{-.08em}\text {V}$$
Ge
V
. The azimuthal correlation
$$\varDelta \phi $$
Δ
ϕ
between the Z boson and the leading jet, as well as the correlations between the two leading jets are measured in three regions of
$$p_{\textrm{T}} (\text {Z })$$
p
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
$$p_{\textrm{T}} (\text {Z })$$
p
T
(
Z
)
regions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-023-11833-z
