Predicting minimum-bias trigger-associated dijet correlations in p-p collisions

2014/07/24 by Thomas A. Trainor, Trainor, Thomas A.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1407.6422

22 pages, 17 figures

arxiv created 2014/07/24 · arxiv updated 2014/07/25

Abstract

A method is derived to predict the structure of dijet-related hard components of trigger-associated (TA) hadron correlations from p-p collisions based on measured fragmentation functions (FFs) from e-e or p-pbar collisions and a minimum-bias (MB) jet or scattered-parton spectrum from p-pbar collisions. The method is based on the probability chain rule and Bayes' theorem and relates a trigger-parton--associated-fragment system from reconstructed dijets to a trigger-hadron--associated-hadron system from p-p data. The method is tested in this study by comparisons of FF TA structure with preliminary p-p TA data but can also be applied to p-A, d-A and A-A collisions over a range of energies. Quantitative comparisons of measured TA correlations with FF-derived predictions may confirm a QCD MB dijet mechanism for certain spectrum and correlation structures whose origins are currently questioned and have been attributed by some to collective expansion (flows).

Related

• Improved isolation of the p-p underlying event based on minimum-bias trigger-associated hadron correlations
• Minimum-bias angular and trigger-associated correlations from 200 GeV p-p collisions: jets, flows, centrality and the underlying event
• Multiplicity-dependent jet modification from di-hadron correlations in pp collisions at √(s) = 13 TeV
• Studies of di-jets in Au+Au collisions using angular correlations with respect to back-to-back leading hadrons
• Manifestations of minimum-bias dijets in high-energy nuclear collisions