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Study of Z boson plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV
Journal article   Open access   Peer reviewed

Study of Z boson plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV

CMS Collaboration, A Tumasyan, Maria Florencia Canelli, Benjamin Kilminster, Lea Caminada, Cristina Botta, Pascal Bartschi, Danyyl Brzhechko, Kyle Cormier, Adinda Wit, …
Journal of high energy physics : JHEP, Vol.2021(10), 176
10/21/2021
DOI: 10.1007/JHEP10(2021)176
url
https://doi.org/10.1007/JHEP10(2021)176View
Published (Version of record) Open Access

Abstract

Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the CMS experiment at the LHC at s√ = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 collected in the year 2016. Differential cross sections of Z+ ≥1 jet and Z+ ≥2 jets are measured with transverse momentum of the jets above 20 GeV and pseudorapidity |η| < 2.4. Several distributions with sensitivity to double-parton scattering effects are measured as functions of the angle and the transverse momentum imbalance between the Z boson and the jets. The measured distributions are compared with predictions from several event generators with different hadronization models and different parameter settings for multiparton interactions. The measured distributions show a dependence on the hadronization and multiparton interaction simulation parameters, and are important input for future improvements of the simulations.
 Hadron-Hadron scattering (experiments) Jets

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