PDF reweighting in the Hessian matrix approach

  title={PDF reweighting in the Hessian matrix approach},
  author={Hannu Paukkunen and P'ia Zurita},
  journal={Journal of High Energy Physics},
A bstractWe introduce the Hessian reweighting of parton distribution functions (PDFs). Similarly to the better-known Bayesian methods, its purpose is to address the compatibility of new data and the quantitative modifications they induce within an existing set of PDFs. By construction, the method discussed here applies to the PDF fits that carried out a Hessian error analysis using a non-zero tolerance Δχ2. The principle is validated by considering a simple, transparent example. We are also… 
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