Slicing Pomerons in ultraperipheral collisions using forward neutrons from nuclear breakup

M. Alvioli, V. Guzey, M. Strikman

Research output: Contribution to journalArticlepeer-review

Abstract

We argue that measurements of forward neutrons from nuclear breakup in inclusive high energy photon-nucleus (γA) scattering provide a novel way to study small-x dynamics of QCD in heavy-ion ultraperipheral collisions (UPCs). Using models for hadronic fluctuations of the real photon and neutron emission in nuclear fragmentation, we calculate the distribution over the number of evaporation neutrons produced in γPb collisions at the Large Hadron Collider. We show that it is correlated with the number of wounded nucleons (inelastic collisions) and, hence, can constrain the mechanism of nuclear shadowing and its x dependence.

Original languageEnglish (US)
Article number025205
JournalPhysical Review C
Volume110
Issue number2
DOIs
StatePublished - Aug 2024

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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