English

Central Instanton Production

High Energy Physics - Phenomenology 2022-04-29 v3 High Energy Physics - Experiment High Energy Physics - Theory

Abstract

We study the central production of QCD instantons at hadron colliders in events with two large rapidity gaps. These gaps in rapidity are formed by either Pomeron or photon exchanges or a combination of the two. The kT-factorization formalism is used to reduce the factorization scale dependence. We compute for the first time the relevant differential cross-sections for a complete set of central instanton production processes at the LHC, including gluon-induced and quark-induced amplitudes, and also show that the largest contribution comes from processes with Pomeron exchanges where a single gluon from each Pomeron couples to the instanton.

Keywords

Cite

@article{arxiv.2111.02159,
  title  = {Central Instanton Production},
  author = {V. A. Khoze and V. V. Khoze and D. L. Milne and M. G. Ryskin},
  journal= {arXiv preprint arXiv:2111.02159},
  year   = {2022}
}

Comments

v2: Added discussion on detection possibility at the LHC, matches version accepted for publication in PRD

R2 v1 2026-06-24T07:24:13.222Z