Constraining fragmentation functions through hadron-photon production at higher-orders

In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbative functions extracted from experimental data advanced fitting techniques. Constraining parameters of fits crucial reduce uncertainties, and provide reliable accurate FFs. this article, we explore strategies relate pion FFs for other hadrons (in particular, kaons), comparing cross-section ratios imposing proper kinematical cuts. We exploit phenomenology photon-hadron production at colliders, including up NLO QCD LO QED corrections, make use formulae reconstruct partonic momentum fractions. By studying different cuts, manage isolate contribution $u$-started Then, $z$-spectrum kaon production, with corresponding ratios. The methodology described in article can be used any pair hadrons, could further explored keep track flavour partons undergoing hadronization.