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Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
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abstract
The double differential cross sections of the Drell-Yan lepton pair ($\ell^+\ell^-$, dielectron or dimuon) production are measured as functions of the invariant mass $m_{\ell\ell}$, transverse momentum $p_\mathrm{T}(\ell\ell)$, and $\phi^*_\eta$. The $\phi^*_\eta$ observable, derived from angular measurements of the leptons and highly correlated with $p_\mathrm{T}(\ell\ell)$, is used to probe the low-$p_\mathrm{T}(\ell\ell)$ region in a complementary way. Dilepton masses up to 1 TeV are investigated. Additionally, a measurement is performed requiring at least one jet in the final state. To benefit from partial cancellation of the systematic uncertainty, the ratios of the differential cross sections for various $m_{\ell\ell}$ ranges to those in the Z mass peak interval are presented. The collected data correspond to an integrated luminosity of 36.3 fb$^{-1}$ of proton-proton collisions recorded with the CMS detector at the LHC at a centre-of-mass energy of 13 TeV. Measurements are compared with predictions based on perturbative quantum chromodynamics, including soft-gluon resummation.
Forward citations
Cited by 6 Pith papers
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Non-perturbative effects and soft-gluon dynamics in low-$p_T$ Drell-Yan production
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A tale of $Z$+jet: SMEFT effects and the Lam-Tung relation
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Non-Perturbative Contributions to Low Transverse Momentum Drell-Yan Pair Production Using the Parton Branching Method
The fitted intrinsic-kT width obtained from CASCADE3 Drell-Yan simulations is independent of the pair invariant mass at LHC energies, consistent with the slow scale dependence of the non-perturbative Sudakov form fact...
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Interplay of intrinsic motion of partons and soft gluon emissions in Drell-Yan production studied with PYTHIA
The sqrt(s)-dependent intrinsic-kT width in PYTHIA 8 is traced to soft gluon emissions controlled by the ISR cutoff pT0Ref, with the fitted width increasing nearly linearly with pT0Ref.
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What can we learn from the Parton Branching method in QCD?
A proceedings review that highlights recent PB method results: NNLL Sudakov accuracy, a PB-CSS correspondence, and a fully consistent forward-backward shower called Pdf2Isr.
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Parton Distribution Functions and their Generalizations
A textbook-style introduction to the definitions, QCD properties, experimental access, and current phenomenological status of PDFs and their generalizations.
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