# Corrections to Angular Ordering in Multiple Hadroprodroproduction

Source: [Corrections to Angular Ordering in Multiple Hadroprodroproduction](<https://www.sota2.com/research/paper/68fa22c77a2b558e2933dbda>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T05:14:42.314Z

Authors: K.Kimura, M.Kitazawa, K.Tesima

Published: 1995-09-18T12:57:36.000Z

## Abstract

One of the key ideas in describing the multiparticle production at high energies in the perturbative QCD is the angular ordering in successive soft-gluon emission. We analyse the angular distribution of particles in a jet, and investigate the corrections to the angular ordering. At a small angle from the jet direction, the angular ordering is exact at the next-to-leading order. At a large angle, the angular ordering overestimates the angular particle density by a factor $(1-\\gamma\\ln \\cos^2(\\theta/2))$, where $\\gamma$ is the anomalous dimension of the multiplicity. The $O(\\gamma)$ correction restores the boost invariance of the cross section.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ph/9509326>)

[PDF](<https://arxiv.org/pdf/hep-ph/9509326.pdf>)