A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at √s=13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3 fb-1 . Jets are reconstructed with the anti- kT 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 pT 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 pT 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 αS(mZ)=0.1179±0.0019 .

Measurement of multidifferential cross sections for dijet production in proton–proton collisions at √s=13 TeV

Cappati, A.;Meridiani, P.;Amapane, N.;Argiro, S.;Bellan, R.;Bellora, A.;Costa, M.;Covarelli, R.;Grippo, M.;Kiani, B.;Luongo, F.;Mecca, A.;Migliore, E.;Mulargia, R.;Obertino, M. M.;Pacher, L.;Shchelina, K.;Siviero, F.;Sola, V.;Solano, A.;Soldi, D.;Tarricone, C.;Tornago, M.;Umoret, G.;Vagnerini, A.;Rumerio, P.;Ravera, F.;Salvatico, R.;
2025-01-01

Abstract

A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at √s=13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3 fb-1 . Jets are reconstructed with the anti- kT 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 pT 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 pT 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 αS(mZ)=0.1179±0.0019 .
2025
85
1
1
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null, null; Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Valle, A. Escala...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2121972
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