Measurement of the combined rapidity and $p_T$ dependence of dijet azimuthal decorrelations in $p\bar{p}$ collisions at $\sqrt{s}=1.96\,$TeV - Archive ouverte HAL Access content directly
Journal Articles Physics Letters B Year : 2013

Measurement of the combined rapidity and $p_T$ dependence of dijet azimuthal decorrelations in $p\bar{p}$ collisions at $\sqrt{s}=1.96\,$TeV

, (1) , (2) , (1) , (2) , (2) , (1) , (1) , (1) , (2) , (3) , (4) , (1) , (1) , (4) , (4) , (2) , (3) , (1) , (1) , (1) , (4) , (1) , (5) , (5) , (6) , (6) , (6) , (6) , (7) , (7) , (7) , (7) , (7) , (7) , (7) , (8) , (8)
1
2
3
4
5
6
7
8
V.M. Abazov
E. Kajfasz

Abstract

We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, based on the recently proposed quantity $R_{\Delta \phi}$. The variable $R_{\Delta \phi}$ measures the fraction of the inclusive dijet events in which the azimuthal separation of the two jets with the highest transverse momenta is less than a specified value for the parameter $\Delta \phi_{\rm max}$. The quantity $R_{\Delta \phi}$ is measured in $p\bar{p}$ collisions at $\sqrt{s}=1.96\,$TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and $\Delta \phi_{\rm max}$. The measurement uses an event sample corresponding to an integrated luminosity of $0.7\,$fb$^{-1}$ collected with the D0 detector at the Fermilab Tevatron Collider. The results are compared to predictions of a perturbative QCD calculation at next-to-leading order in the strong coupling with corrections for non-perturbative effects. The theory predictions describe the data, except in the kinematic region of large dijet rapidity intervals and large $\Delta \phi_{\rm max}$.

Dates and versions

in2p3-00763503 , version 1 (11-12-2012)

Identifiers

Cite

V.M. Abazov, U. Bassler, G. Bernardi, M. Besançon, D. Brown, et al.. Measurement of the combined rapidity and $p_T$ dependence of dijet azimuthal decorrelations in $p\bar{p}$ collisions at $\sqrt{s}=1.96\,$TeV. Physics Letters B, 2013, 721, pp.212-219. ⟨10.1016/j.physletb.2013.03.029⟩. ⟨in2p3-00763503⟩
47 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More