Measurement of the combined rapidity and pT dependence of dijet azimuthal decorrelations in pp- collisions at vs = 1.96 TeV

The D0 Collaboration

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Abstract

We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity Rdff. The variable Rdff 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 dffmax. The quantity Rdff is measured in pp collisions at s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and dffmax. 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 dffmax.

Original languageEnglish
Pages (from-to)212-219
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume721
Issue number4-5
DOIs
Publication statusPublished - 2013 Apr 25

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transverse momentum
collisions
intervals
predictions
kinematics
quantum chromodynamics
luminosity
scalars
momentum
detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

@article{5c3677c7373c435997003e1ecb9b198d,
title = "Measurement of the combined rapidity and pT dependence of dijet azimuthal decorrelations in pp- collisions at vs = 1.96 TeV",
abstract = "We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity Rdff. The variable Rdff 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 dffmax. The quantity Rdff is measured in pp collisions at s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and dffmax. 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 dffmax.",
author = "{The D0 Collaboration} and Abazov, {V. M.} and B. Abbott and Acharya, {B. S.} and M. Adams and T. Adams and Alexeev, {G. D.} and G. Alkhazov and A. Alton and A. Askew and S. Atkins and K. Augsten and C. Avila and F. Badaud and L. Bagby and B. Baldin and Bandurin, {D. V.} and S. Banerjee and E. Barberis and P. Baringer and Bartlett, {J. F.} and U. Bassler and V. Bazterra and A. Bean and M. Begalli and L. Bellantoni and Beri, {S. B.} and G. Bernardi and R. Bernhard and I. Bertram and M. Besan{\cc}on and R. Beuselinck and Bhat, {P. C.} and S. Bhatia and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and Boos, {E. E.} and G. Borissov and A. Brandt and O. Brandt and R. Brock and A. Bross and D. Brown and J. Brown and Bu, {X. B.} and Suyong Choi and Park, {Sung Keun}",
year = "2013",
month = "4",
day = "25",
doi = "10.1016/j.physletb.2013.03.029",
language = "English",
volume = "721",
pages = "212--219",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
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TY - JOUR

T1 - Measurement of the combined rapidity and pT dependence of dijet azimuthal decorrelations in pp- collisions at vs = 1.96 TeV

AU - The D0 Collaboration

AU - Abazov, V. M.

AU - Abbott, B.

AU - Acharya, B. S.

AU - Adams, M.

AU - Adams, T.

AU - Alexeev, G. D.

AU - Alkhazov, G.

AU - Alton, A.

AU - Askew, A.

AU - Atkins, S.

AU - Augsten, K.

AU - Avila, C.

AU - Badaud, F.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D. V.

AU - Banerjee, S.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Bazterra, V.

AU - Bean, A.

AU - Begalli, M.

AU - Bellantoni, L.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bernhard, R.

AU - Bertram, I.

AU - Besançon, M.

AU - Beuselinck, R.

AU - Bhat, P. C.

AU - Bhatia, S.

AU - Bhatnagar, V.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, K.

AU - Boehnlein, A.

AU - Boline, D.

AU - Boos, E. E.

AU - Borissov, G.

AU - Brandt, A.

AU - Brandt, O.

AU - Brock, R.

AU - Bross, A.

AU - Brown, D.

AU - Brown, J.

AU - Bu, X. B.

AU - Choi, Suyong

AU - Park, Sung Keun

PY - 2013/4/25

Y1 - 2013/4/25

N2 - We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity Rdff. The variable Rdff 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 dffmax. The quantity Rdff is measured in pp collisions at s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and dffmax. 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 dffmax.

AB - We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity Rdff. The variable Rdff 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 dffmax. The quantity Rdff is measured in pp collisions at s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and dffmax. 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 dffmax.

UR - http://www.scopus.com/inward/record.url?scp=84875889080&partnerID=8YFLogxK

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U2 - 10.1016/j.physletb.2013.03.029

DO - 10.1016/j.physletb.2013.03.029

M3 - Article

AN - SCOPUS:84875889080

VL - 721

SP - 212

EP - 219

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 4-5

ER -