English

Calculating Pull for Non-Singlet Jets

High Energy Physics - Phenomenology 2019-12-10 v2 High Energy Physics - Experiment

Abstract

The pull vector is a jet observable sensitive to the distribution of soft radiation controlled by the color flow in a collider event. We present calculations to leading order in the soft and collinear limits for the pull vector measured between pairs of jets that do not form a color-singlet dipole. Our calculations are presented within the context of e+ee^+e^-\to three jets events, on which pull is measured between the two subleading jets. A subset of these calculations can be re-interpreted as a bottom--anti-bottom quark jet pair in a color octet configuration, which can be a background to Higgs production at large boost. We also present a universal expression for the pull distribution in the high-boost and small jet radius limit. This distribution is controlled by color SU(3) quadratic Casimirs that arise from product representations of pairs of QCD jets.

Keywords

Cite

@article{arxiv.1910.02085,
  title  = {Calculating Pull for Non-Singlet Jets},
  author = {Yunjia Bao and Andrew J. Larkoski},
  journal= {arXiv preprint arXiv:1910.02085},
  year   = {2019}
}

Comments

v1: 21 pages (+title page), 6 figures, 1 table, v2: JHEP version, 22 pages (+title page), additional discussion on discrimination power and expected formal accuracy

R2 v1 2026-06-23T11:34:54.831Z