Measurements of jet multiplicity and differential production cross sections of Z + jets events in proton-proton collisions at sqrt(s) = 7 TeV

CMS; Basegmez, Suzan; Beluffi, Camille; Bruno, Giacomo; Castello, Roberto; Caudron, Adrien; Ceard, Ludivine; Da Silveira, Gustavo Gil; Delaere, Christophe; Du Pree, Tristan; Favart, Denis; Forthomme, Laurent; Giammanco, Andrea; Hollar, Jonathan; Jez, Pavel; Komm, Matthias; Lemaitre, Vincent; Nuttens, Claude; Pagano, Davide; Perrini, Lucia

doi:10.1103/PhysRevD.91.052008

Measurements of jet multiplicity and differential production cross sections of Z + jets events in proton-proton collisions at sqrt(s) = 7 TeV

CMS

;

Basegmez, Suzan

;

Beluffi, Camille

;

Bruno, Giacomo

;

Bethani, Agni

;et.al.

(2015) Physical Review. D, Particles, Fields, Gravitation and Cosmology — Vol. 91, n° 5, p. 052008 [1-26] (2015)

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Authors

CMSUCLouvain
Author
Basegmez, SuzanUCLouvain
Author
Beluffi, CamilleUCLouvain
Author
Bruno, GiacomoUCLouvain
Author
Castello, RobertoUCLouvain
Author
Caudron, AdrienUCLouvain
Author
Ceard, LudivineUCLouvain
Author
Da Silveira, Gustavo GilUCLouvain
Author
Delaere, ChristopheUCLouvain
Author
Du Pree, TristanUCLouvain
Author
Favart, DenisUCLouvain
Author
Forthomme, LaurentUCLouvain
Author
Giammanco, AndreaUCLouvain
Author
Hollar, JonathanUCLouvain
Author
Jez, PavelUCLouvain
Author
Komm, MatthiasUCLouvain
Author
Lemaitre, VincentUCLouvain
Author
Nuttens, ClaudeUCLouvain
Author
Pagano, DavideUCLouvain
Author
Perrini, LuciaUCLouvain
Author
Pin, ArnaudUCLouvain
Author
Piotrzkowski, KrzysztofUCLouvain
Author
Popov, AndreyUCLouvain
Author
Quertenmont, LoïcUCLouvain
Author
Selvaggi, MicheleUCLouvain
Author
Vidal Maroño, MiguelUCLouvain
Author
Vizan Garcia, Jesús ManuelUCLouvain
Author
Bethani, AgniUCLouvain
Author
et. al.

Abstract

Measurements of differential cross sections are presented for the production of a Z boson and at least one hadronic jet in proton-proton collisions at sqrt(s) = 7 TeV, recorded by the CMS detector, using a data sample corresponding to an integrated luminosity of 4.9 inverse femtobarns. The jet multiplicity distribution is measured for up to six jets. The differential cross sections are measured as a function of jet transverse momentum and pseudorapidity for the four highest transverse momentum jets. The distribution of the scalar sum of jet transverse momenta is also measured as a function of the jet multiplicity. The measurements are compared with theoretical predictions at leading and next-to-leading order in perturbative QCD.

Affiliations

UCLouvainSST/IRMP - Institut de recherche en mathématique et physique

Citations

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CMS, Basegmez, S., Beluffi, C., Bruno, G., Castello, R., Caudron, A., Ceard, L., Da Silveira, G. G., Delaere, C., Du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Jez, P., Komm, M., Lemaitre, V., Nuttens, C., Pagano, D., et al. (2015). Measurements of jet multiplicity and differential production cross sections of Z + jets events in proton-proton collisions at sqrt(s) = 7 TeV. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 91(5), 052008 [1-26]. https://doi.org/10.1103/PhysRevD.91.052008 (Original work published 2015)