Get started
Work

Nuclear Shadowing in inelastic photon-nucleus scattering in UPCs with forward neutrons

Year: 2025
Type: conference-paper
Abstract: We argue that measurements of forward neutrons from nuclear breakup in inclusive high energy photon-nucleus (photon-A) scattering provide a novel complementary way to study small-x dynamics of QCD in heavy-ion ultraperipheral collisions (UPCs). Using the leading twist approach to nuclear shadowing, we calculate the distribution over the number of evaporation neutrons produced in photon-lead collisions at the LHC. We demonstrate that it allows one to determine the distribution over the number of wounded nucleons (inelastic collisions), which constrains the mechanism of nuclear shadowing of nuclear parton distributions and gives an access to their impact parameter dependence.
DOI: 10.17161/fnzwt563
Institutions: Pennsylvania State University, University of Helsinki, Helsinki Institute of Physics, University of Jyväskylä, Research Institute for Geo-Hydrological Protection, National Research Council, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
Language: English
Open Access status: hybrid
Awards: G1003533401, THEORETICAL STUDIES IN HIGH ENERGY NUCLEAR PHYSICS, Yoctosecond imaging of QCD collectivity using jet observables, G222768804, Center of Excellence in Quark Matter, THEORETICAL STUDIES IN HIGH ENERGY NUCLEAR PHYSICS, Nuclear parton distributions and QCD matter properties from LHC data, THEORETICAL STUDIES IN HIGH ENERGY NUCLEAR PHYSICS, Center of Excellence in Quark Matter
OpenAlex ID: W4408326581
FWCI:
Cites:
Cited by:
Related to: 10