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 .| File | Dimensione | Formato | |
|---|---|---|---|
|
s10052-024-13606-8.pdf
Accesso aperto
Tipo di file:
PDF EDITORIALE
Dimensione
9.12 MB
Formato
Adobe PDF
|
9.12 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



