Photoemission signature of momentum-dependent hybridization in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>CeCoIn</mml:mi></mml:mrow><mml:mn>5</mml:mn></mml:msub></mml:math>

Hybridization between $f$ electrons and conduction bands (c-f hybridization) is a driving force for many unusual phenomena. To provide insight into it, systematic studies of ${\mathrm{CeCoIn}}_{5}$ heavy fermion superconductor have been performed by angle-resolved photoemission spectroscopy (ARPES) in large angular range at temperature $T=6$ K. The used photon energy 122 eV corresponds to Ce $4d\text{\ensuremath{-}}4f$ resonance. Calculations carried out with the relativistic multiple scattering Korringa-Kohn-Rostoker method one-step model yielded realistic simulation ARPES spectra, indicating that Ce-In surface termination prevails. Surface states, which identified calculations, contribute significantly spectra. Effects hybridization strongly depend on wave vector. They include dispersion gaining $f$-electron character when approaching Fermi energy. We also observed considerable variation spectral weight ${E}_{F}$, normally determined both matrix element effects vector dependent c-f hybridization. scans covering few Brillouin zones revealed effects. A symmetrization experimental surface, reduces contribution, specific $4f$-electron enhanced intensity ${E}_{F}$ around $\overline{\mathrm{\ensuremath{\Gamma}}}$ $\overline{\mathrm{M}}$ points. Tight-binding approximation calculations plane provided same universal distribution density values parameters model.