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Measurement of three-jet differential cross sections d sigma(3jet)/dM(3jet) in p(p)over-bar collisions at root s=1.96 TeV

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  • V. M. Abazov
  • B. Abbott
  • B. S. Acharya
  • M. Adams
  • T. Adams
  • G. D. Alexeev
  • G. Alkhazov
  • A. Alton
  • G. Alverson
  • G. A. Alves
  • L. S. Ancu
  • M. Aoki
  • M. Arov
  • A. Askew
  • B. Asman
  • O. Atramentov
  • C. Avila
  • J. BackusMayes
  • F. Badaud
  • L. Bagby
  • B. Baldin
  • D. V. Bandurin
  • S. Banerjee
  • E. Barberis
  • P. Baringer
  • J. Barreto
  • J. F. Bartlett
  • U. Bassler
  • V. Bazterra
  • S. Beale
  • A. Bean
  • M. Begalli
  • M. Begel
  • C. Belanger-Champagne
  • L. Bellantoni
  • S. B. Beri
  • G. Bernardi
  • R. Bernhard
  • I. Bertram
  • M. Besancon
  • R. Beuselinck
  • V. A. Bezzubov
  • P. C. Bhat
  • V. Bhatnagar
  • G. Borissov
  • H. Fox
  • D. Price
  • P. N. Ratoff
  • A. Ross
  • M. R. J. Williams
  • D0 Collaboration
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<mark>Journal publication date</mark>25/10/2011
<mark>Journal</mark>Physics Letters B
Issue number5
Volume704
Number of pages8
Pages (from-to)434-441
Publication statusPublished
Original languageEnglish

Abstract

We present the first measurement of the inclusive three-jet differential cross section as a function of the invariant mass of the three jets with the largest transverse momenta in an event in p (p) over bar collisions at root s = 1.96 TeV. The measurement is made in different rapidity regions and for different jet transverse momentum requirements and is based on a data set corresponding to an integrated luminosity of 0.7 fb(-1) collected with the DO detector at the Fermilab Tevatron Collider. The results are used to test the three-jet matrix elements in perturbative QCD calculations at next-to-leading order in the strong coupling constant. The data allow discrimination between parametrizations of the parton distribution functions of the proton. (C) 2011 Elsevier B.V. All rights reserved.