The u-channel Lambda_c exchange enhances rescattering via Dbar(*) Sigma_c states in the piN to J/psiN reaction, producing clear peaks for Pc(4312) (1/2^-) and Pc(4457) (3/2^-) at microbarn cross sections while suppressing other states.
Aliet al.[The GlueX Collaboration], Phys
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Calculations of excitation functions, momentum spectra, and transparency ratios for χ_c1(1P) on 12C and 184W nuclei demonstrate sensitivity to different absorption cross-section scenarios, proposed for extraction via future CEBAF data.
A hadronic approach based on dispersion relations and meson dominance achieves a successful description of lattice QCD data for gravitational form factors of pions and nucleons.
The EIC Yellow Report specifies the science goals, required detector capabilities, and technology concepts needed to realize a high-luminosity electron-ion collider program.