Nuclear effects in protonium formation low-energy three-body reaction: p? + (pμ)1s → (p?p)α + μ?: Strong p?–p interaction in p? + (pμ)1s

摘要

A three-charge-particle system (p?, μ?, p+) with an additional matter-antimatter, i.e. p?–p+, nuclear interaction is the subject of this work. Specifically, we carry out a few-body computation of the following protonium formation reaction: p? + (p+μ?)1s → (p?p+)1s + μ?, where p+ is a proton, p? is an antiproton, μ? is a muon, and a bound state of p+ and its counterpart p? is a protonium atom: Pn = (p?p+). The low-energy cross sections and rates of the Pn formation reaction are computed in the framework of a Faddeev-like equation formalism. The strong p?–p+ interaction is approximately included in this calculation.