Feshbach resonances in positron scattering from sodium
Li Guang Jiao, Y Cheng, Rongqing Yu +1 more
We present an investigation of Feshbach resonances in positron-sodium scattering system. The momentum space coupled channels optical method including the positronium formation channels has been used. The first three partial-wave resonances below the Na(3p,4s,3d,4p) excitation and the Ps(n=2) formation thresholds are calculated. The Wigner cusp structures are also obtained just at these thresholds.
Journal of Physics Conference Series•Nov 5, 2012•0 citations