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Abstract: Measurements of the differential cross sections of Z + jets and g + 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 13TeV 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 g + jets production at 13TeV, as well as the first direct measurement of Z bosons emitted collinearly with a jet.
Fuente: Journal of High Energy Physics volume 2021, Article number: 285 (2021)
Publisher: Springer Verlag
Publication date: 31/05/2021
No. of pages: 43
Publication type: Article
DOI: 10.1007/JHEP05(2021)285
ISSN: 1126-6708,1029-8479
Publication Url: https://doi.org/10.1007/JHEP05(2021)285
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SIRUNYAN, A.M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
PEDRO JOSE FERNANDEZ MANTECA
GERVASIO GOMEZ GRAMUGLIO
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
FRANCESCA SHUN-NING ANNAROSA RICCI-TAM
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
IVAN VILA ALVAREZ
JESUS MANUEL VIZAN GARCIA
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