Rapidity distributions in exclusive Z plus jet and gamma plus jet events in pp collisions at root s=7 TeV

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Abstract

Rapidity distributions are presented for events containing either a Z boson or a photon with a single jet in proton-proton collisions produced at the CERN LHC. The data, collected with the CMS detector at root s = 7 TeV, correspond to an integrated luminosity of 5.0 fb(-1). The individual rapidity distributions of the boson and the jet are consistent within 5% with expectations from perturbative QCD. However, QCD predictions for the sum and the difference in rapidities of the two final-state objects show discrepancies with CMS data. In particular, next-to-leading-order QCD calculations, and two common Monte Carlo event generators using different methods to match matrix-element partons with parton showers, appear inconsistent with the data as well as with each other.

Autore Pugliese

Tutti gli autori

  • POMPILI A.;MARANGELLI B.;SELVAGGI G.;ABBRESCIA M.;DE PALMA M.;MY S.;NUZZO S.V.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2013

ISSN

1550-7998

ISBN

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Numero di citazioni Wos

6

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

22

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

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Codici ASJC

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