Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at s = 13 Te V .
Eur Phys J C Part Fields
; 83(7): 628, 2023.
Article
in En
| MEDLINE
| ID: mdl-37471210
The double differential cross sections of the Drell-Yan lepton pair (â+â-, dielectron or dimuon) production are measured as functions of the invariant mass mââ, transverse momentum pT(ââ), and φη∗. The φη∗ observable, derived from angular measurements of the leptons and highly correlated with pT(ââ), is used to probe the low-pT(ââ) region in a complementary way. Dilepton masses up to 1TeV 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 mââ ranges to those in the Z mass peak interval are presented. The collected data correspond to an integrated luminosity of 36.3fb-1 of proton-proton collisions recorded with the CMS detector at the LHC at a centre-of-mass energy of 13TeV. Measurements are compared with predictions based on perturbative quantum chromodynamics, including soft-gluon resummation.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Eur Phys J C Part Fields
Year:
2023
Document type:
Article
Affiliation country:
Armenia
Country of publication:
Francia