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High Energy Physics - Phenomenology

arXiv:2111.02159 (hep-ph)
[Submitted on 3 Nov 2021 (v1), last revised 28 Apr 2022 (this version, v3)]

Title:Central Instanton Production

Authors:V. A. Khoze, V. V. Khoze, D. L. Milne, M. G. Ryskin
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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.
Comments: v2: Added discussion on detection possibility at the LHC, matches version accepted for publication in PRD
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); High Energy Physics - Theory (hep-th)
Report number: IPPP/21/41
Cite as: arXiv:2111.02159 [hep-ph]
  (or arXiv:2111.02159v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2111.02159
Related DOI: https://doi.org/10.1103/PhysRevD.105.036008

Submission history

From: Daniel Milne [view email]
[v1] Wed, 3 Nov 2021 11:59:00 UTC (85 KB)
[v2] Fri, 19 Nov 2021 14:49:10 UTC (408 KB)
[v3] Thu, 28 Apr 2022 09:02:38 UTC (414 KB)
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