The gluon condensation in hadron collisions

Abstract

Gluons may converge to a stable state at a critical momentum in hadrons. This gluon condensation is predicted by a nonlinear QCD evolution equation. We review the understanding of the gluon condensation and present a clear physical picture that produces the gluon condensation from the colour glass condensate. We summarize the applications of the GC effect in the $p-p(A)$ collisions and predict that the $p-Pb$ and $Pb-Pb$ collisions at the LHC are close to the energy region of the gluon condensation. We warn that for the next generation of hadron colliders with the increasing of the collision energy, the extremely strong gamma-rays will be emitted in a narrow space of the accelerator due to the gluon condensation effect. Such artificial mini gamma-ray bursts in the laboratory may damage the detectors.

30 pages, 11 figures, 2 tables, Accepted for publication in NPB. arXiv admin note: text overlap with arXiv:2109.09826

References in corpus (4)

• Basic features of the pion valence-quark distribution function
• The gluon condensation at high energy hadron collisions
• Can a chaotic solution in the QCD evolution equation restrain high-energy collider physics?
• A possible evidence of the gluon condensation effect in cosmic positron and gamma-ray spectra

Cited by in corpus (1)

• Gluon Condensation Signature in the GeV Gamma-Ray Spectra of Pulsars