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Measurement of the triple-differential dijet cross section in proton-proton collisions at sqrt(s) = 8 TeV and constraints on parton distribution functions

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arxiv 1705.02628 v2 pith:PM23UGN5 submitted 2017-05-07 hep-ex

classification hep-ex
keywords crosssectioncollisionsconstraintsdetectordijetdistributionfunctions
verification ladder T0 review T1 audit T2 compute T3 formal

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A measurement is presented of the triple-differential dijet cross section at a centre-of-mass energy of 8 TeV using 19.7 inverse femtobarns of data collected with the CMS detector in proton-proton collisions at the LHC. The cross section is measured as a function of the average transverse momentum, half the rapidity separation, and the boost of the two leading jets in the event. The cross section is corrected for detector effects and compared to calculations in perturbative quantum chromodynamics at next-to-leading order accuracy, complemented with electroweak and nonperturbative corrections. New constraints on parton distribution functions are obtained and the inferred value of the strong coupling constant is alpha[S](M[Z]) = 0.1199 +/- 0.0015 (exp) -0.0020 +0.0031 (theo), where M[Z] is the mass of the Z boson.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Consistency of the Standard Model Effective Field Theory

    hep-ph 2019-08 accept novelty 7.0 of 10

    Causality and analyticity of scattering amplitudes imply 27 independent bounds on the dimension-eight bosonic operators of the Standard Model Effective Field Theory.

  2. Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A complete NNLO QCD fit to LHC and HERA dijet data yields alpha_s(m_Z) = 0.1178 with a total uncertainty of 0.0022 and tests the running coupling from 7 GeV up to 7 TeV.

  3. The impact of LHC precision measurements of inclusive jet and dijet production on the CTEQ-TEA global PDF fit

    hep-ph 2024-11 conditional novelty 4.0 of 10

    New LHC inclusive jet data push the CT18 gluon harder at high x and shrink its uncertainty, while dijet data show stronger scale dependence and are set aside.

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