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Triple Differential Dijet Cross Section at the LHC
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Resumo(s)
The measurement of the triple-differential dijet production cross section as
a function of the average transverse momentum $p_{T,\textrm{avg}}$, half the
rapidity separation $y^{*}$, and the boost $y_{b}$ of the two leading jets in
the event enables a kinematical scan of the underlying parton momentum
distributions. We compute for the first time the second-order perturbative QCD
corrections to this triple-differential dijet cross section, at leading color
in all partonic channels, thereby enabling precision studies with LHC dijet
data. A detailed comparison with experimental CMS 8 TeV data is performed,
demonstrating how the shape of this differential cross section probes the
parton densities in different kinematical ranges.