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
| Autor: | CMS Collaboration |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Drell-Yan process
p p: scattering dilepton: mass spectrum CMS 13000 GeV-cms lepton: pair production Z0: hadroproduction dimuon: mass spectrum lepton: transverse momentum transverse momentum dependence mass dependence electron: pair production muon: pair production angular dependence CERN LHC Coll resummation Z0: leptonic decay quantum chromodynamics: perturbation theory differential cross section: ratio p p: colliding beams experimental results |
| DOI: | 10.3204/pubdb-2022-04482 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|