Vibrational excitation and vibrationally resolved electronic excitation cross sections of positron-H$_2$ scattering

Vibrational excitation and vibrationally resolved electronic excitation cross sections of positron-H$_2$ scattering have been calculated using the single-centre molecular convergent close-coupling (CCC) method. The adiabatic-nuclei approximation was utilized to model the above scattering processes and obtain the vibrationally resolved positron-H$_2$ scattering length. As previously demonstrated [1], the CCC results are converged and accurately account for virtual and physical positronium formation by coupling basis functions with large orbital angular momentum. Here vibrationally resolved integrated and differential cross sections are presented over a wide energy range and compared with previous calculations and available experiments. [1] M. C. Zammit $et$ $al$. J. Phys. Conference Series $\textbf{635}$, 012009 (2015).