Measurement of multidifferential cross sections for dijet production in proton–proton collisions at $\sqrt{s}$ = 13 TeV


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Date

2025-01-24

Publication Type

Journal Article

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yes

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Abstract

A measurement of the dijet production cross section is reported based on proton–proton collision data collected in 2016 at $\sqrt{s}$ = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3fb$^{-1}$. Jets are reconstructed with the anti-k$_T$ algorithm for distance parameters of R = 0.4 and 0.8. Cross sections are measured double-differentially (2D) as a function of the largest absolute rapidity |y|$_{max}$ of the two jets with the highest transverse momenta p$_T$ and their invariant mass m$_{1,2}$, and triple-differentially (3D) as a function of the rapidity separation y*, the total boost y$_b$, and either m$_{1,2}$ or the average p$_T$ of the two jets. The cross sections are unfolded to correct for detector effects and are compared with fixed-order calculations derived at next-to-next-to-leading order in perturbative quantum chromodynamics. The impact of the measurements on the parton distribution functions and the strong coupling constant at the mass of the Z boson is investigated, yielding a value of α$_S$(m$_Z$)=0.1179±0.0019.

Publication status

published

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Volume

85 (1)

Pages / Article No.

72

Publisher

Springer

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Funding

758316 - Majorana neutrino discovery strategy with CMS (EC)

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