Search for quark compositeness in dijet angular distributions from pp collisions at root s=7 TeV

Abstract

A search for quark compositeness using dijet angular distributions from pp collisions at root s = 7TeV is presented. The search has been carried out using a data sample corresponding to an integrated luminosity of 2 : 2 fb(-1), recorded by the CMS experiment at the LHC. Normalized dijet angular distributions have been measured for dijet invariant masses from 0.4TeV to above 3TeV and compared with a variety of contact interaction models, including those which take into account the effects of next-to-leading-order QCD corrections. The data are found to be in agreement with the predictions of perturbative QCD, and lower limits are obtained on the contact interaction scale, ranging from 7.5 up to 14.5TeV at 95 confidence level.


Tutti gli autori

  • POMPILI A.;MARANGELLI B.;CALABRIA C.;SELVAGGI G.;SINGH G.;LUSITO L.;BARBONE L.;ABBRESCIA M.;DE PALMA M.;PACIFICO N.;MANNA N.;MY S.;NUZZO S.V.;CHHIBRA S.S

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2012

ISSN

1029-8479

ISBN

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Numero di citazioni Wos

10

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

36

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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