@article{arrington_gayoso_barry_berdnikov_binosi_chang_diefenthaler_ding_ent_frederico_et al._2021, title={Revealing the structure of light pseudoscalar mesons at the electron-ion collider}, volume={48}, ISSN={["1361-6471"]}, DOI={10.1088/1361-6471/abf5c3}, abstractNote={Abstract}, number={7}, journal={JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS}, author={Arrington, J. and Gayoso, C. Ayerbe and Barry, P. C. and Berdnikov, V and Binosi, D. and Chang, L. and Diefenthaler, M. and Ding, M. and Ent, R. and Frederico, T. and et al.}, year={2021}, month={Jul} } @article{barry_sato_melnitchouk_ji_2018, title={First Monte Carlo Global QCD Analysis of Pion Parton Distributions}, volume={121}, ISSN={["1079-7114"]}, DOI={10.1103/PhysRevLett.121.152001}, abstractNote={We perform the first global QCD analysis of parton distribution functions (PDFs) in the pion, combining πA Drell-Yan data with leading neutron electroproduction from HERA within a Monte Carlo approach based on nested sampling. Inclusion of the HERA data allows the pion PDFs to be determined down to much lower values of x, with relatively weak model dependence from uncertainties in the chiral splitting function. The combined analysis reveals that gluons carry a significantly higher pion momentum fraction, ∼30%, than that inferred from Drell-Yan data alone, with sea quarks carrying a somewhat smaller fraction, ∼15%, at the input scale. Within the same effective theory framework, the chiral splitting function and pion PDFs can be used to describe the d[over ¯]-u[over ¯] asymmetry in the proton.}, number={15}, journal={PHYSICAL REVIEW LETTERS}, author={Barry, P. C. and Sato, N. and Melnitchouk, W. and Ji, Chueng-Ryong}, year={2018}, month={Oct} }