Xu, YinzhenRaya, KhépaniCui, Zhu-FangRoberts, Craig D.Rodríguez Quintero, José2023-07-182023-07-182023Xu, Y.-Z., Raya, K., Cui, Z.-F., Roberts, C. D., & Rodríguez-Quintero, J. (2023). Empirical Determination of the Pion Mass Distribution. arXiv. https://doi.org/10.48550/ARXIV.2302.07361. Publicado en: Chinese Physics Letters (Vol. 40, Issue 4, p. 041201). IOP Publishing. https://doi.org/10.1088/0256-307x/40/4/0412010256-307X1741-3540 (electrónico)https://hdl.handle.net/10272/22332Existing pion+nucleus Drell-Yan and electron+pion scattering data are used to develop ensembles of model-independent representations of the pion generalised parton distribution (GPD). Therewith, one arrives at a data-driven prediction for the pion mass distribution form factor, θ2. Compared with the pion elastic electromagnetic form factor, θ2 is harder: the ratio of the radii derived from these two form factors is rθ2π/rπ=0.79(3). Our data-driven predictions for the pion GPD, related form factors and distributions should serve as valuable constraints on theories of pion structure.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/High Energy PhysicsPhenomenology (hep-ph)High Energy Physics - Experiment (hep-ex)High Energy Physics - Lattice (hep-lat)Nuclear Experiment (nucl-ex)Nuclear Theory (nucl-th)journal article10.48550/arXiv.2302.0736110.1088/0256-307x/40/4/041201open access22 Física