Measurements of the differential cross sections of the production of Z plus jets and ? plus jets and of Z boson emission collinear with a jet in pp collisions at ?s=13 TeV
Küçük Resim Yok
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Measurements of the differential cross sections of Z + jets and gamma + jets production, and their ratio, are presented as a function of the boson transverse momentum. Measurements are also presented of the angular distribution between the Z boson and the closest jet. The analysis is based on pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 35.9 fb(-1) recorded by the CMS experiment at the LHC. The results, corrected for detector effects, are compared with various theoretical predictions. In general, the predictions at higher orders in perturbation theory show better agreement with the measurements. This work provides the first measurement of the ratio of the differential cross sections of Z + jets and gamma + jets production at 13 TeV, as well as the first direct measurement of Z bosons emitted collinearly with a jet.
Açıklama
Anahtar Kelimeler
Hadron-Hadron Scattering (Experiments), Jet Physics, Particle Correlations And Fluctuations
Kaynak
Journal of High Energy Physics
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
Sayı
5
