Abstract
Using the general notion of cross section fluctuations in hadron-nucleus scattering at high energies, we derive an expression for the cross section of incoherent photoproduction on heavy nuclei , which includes both elastic and proton-dissociation photoproduction on target nucleons. We find that, with good accuracy, can be expressed as a product of the sum of the and cross sections, which have been measured at HERA, and the common nuclear shadowing factor, which is calculated using the leading twist nuclear shadowing model. Our prediction for the cross section of incoherent photoproduction in Pb-Pb ultraperipheral collisions at and agrees within significant theoretical uncertainties with the data of the ALICE Collaboration.
- Received 3 August 2018
- Revised 5 November 2018
DOI:https://doi.org/10.1103/PhysRevC.99.015201
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society