Phenomenological study of forward neutron production in DIS at HERA and determination of neutron fracture functions

by Dr Hamzeh Khanpour (University of Science and Technology of Mazandaran and School of Particles and Accelerators, IPM)

Wednesday 2 Aug 2017, 15:30 → 16:30 Asia/Tehran

Particles and Accelerators School Seminar Room (Larak)

In recent years, several dedicated experiments at the e^- p collider HERA have collected high precision data on the spectrum of leading-neutron and leading-proton carrying a large fraction of the proton’s energy. We propose a phenomenological study based on the fractures functions framework and extract the neutron fracture functions (neutron FFs) from global QCD analysis of leading-neutron production data measured by H1 and ZEUS collaborations. We show that an approach based on the fracture functions formalism allows us phenomenologically parametrize the neutron FFs at the input scale Q^2_0. The theory predictions based on the obtained neutron FFs are in good agreement with all data analyzed, for a wide range of scaled fractional momentum variable β as well as the longitudinal momentum fraction x_L.