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In this article, we present our global QCD analysis of leading neutronproduction in deep inelastic scattering at H1 and ZEUS collaborations. Theanalysis is performed in the framework of a perturbative QCD description forsemi-inclusive processes which is based on the fracture functions approach.Modeling the non-perturbative part of the fragmentation process at the inputscale Q$_0^2$, we analyze the Q$^2$-dependence of the leading neutron structurefunctions and obtain the neutron fracture functions (neutron FFs) fromnext-to-leading order (NLO) global QCD fit to data. We have also performed acareful estimation of the uncertainties using the "Hessian method" for theneutron FFs and corresponding observables originating from experimental errors.The predictions based on the obtained neutron FFs are in good agreement withall data analyzed, at small and large longitudinal momentum fraction $x_L$ aswell as the scaled fractional momentum variable $\beta$.

Determination of neutron fracture functions from a global QCD analysis of leading neutron production at HERA