Measurement of the Z → μ⁺μ^- angular coefficients in pp collisions at √(s) = 13 TeV as functions of transverse momentum and rapidity

2026/04/28 by CMS Collaboration · 1 voice
Physics and Astronomy · #hep-ex

paper · pdf

Abstract

A measurement of the eight angular polarization coefficients, A₀ to A₇, in the cross section for the Drell-Yan production of two muons is presented. The analysis is based on proton-proton (pp) collision data recorded with the CMS detector at the LHC at a center-of-mass energy of √(s) = 13 TeV, corresponding to an integrated luminosity of 140 fb^-1. The coefficients are determined double differentially in eight intervals of transverse momentum and two intervals of rapidity of the muon pair μ⁺μ^-. The results are presented for the μ⁺μ^- invariant mass range 81-101 GeV and are compared with theoretical predictions calculated at next-to-next-to-leading order in perturbative quantum chromodynamics. The measurement provides relevant information about the underlying partonic dynamics and the Z boson production mechanisms.

Citations

• Performance of the CMS high-level trigger during LHC Run 2
• Angular distributions of Drell-Yan leptons in the TMD factorization approach
• Angular coefficients of Z bosons produced in pp collisions at sqrt(s) = 8 TeV and decaying to mu+mu- as a function of transverse momentum and rapidity
• An Introduction to PYTHIA 8.2
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
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• Merging meets matching in MC@NLO
• Extracting Muon Momentum Scale Corrections for Hadron Collider Experiments
• Rotation-invariant relations in vector meson decays into fermion pairs
• Extracting Boer-Mulders functions from p+D Drell-Yan processes
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Intrinsic transverse momentum and transverse spin asymmetries
• W and Z Polarization Effects in Hadronic Collisions

Discussions

• #CMSpaper: Measurement of the Z → μ⁺μ⁻ angular coefficients in pp collisions at √s = 13 TeV as functions of transverse momentum and rapidity (arXiv:2604.25678) https://arxiv.org/abs/2604.25678 #Standa [bsky, 1 points, 0 comments]