Formation of the weakly bound muonic molecule (He-4 mu t)(01)(2+) in the three-body (t mu)(1s) + He-4 + He-4 collision

摘要

Formation of the weakly bound muonic molecule (He-4 mu t)(01)(2+) in the excited rotational-vibrational state (J, nu) = (0, 1) due to the three-body collision (t mu)(1s) + He-4 + He-4 is considered for the first time. It is assumed that the process occurs in T-He-4 gaseous mixture in thermal equilibrium containing thermalized muonic tritium atoms. The corresponding reaction rate is calculated in the frame of the distorted wave Born approximation (DWBA) method using the dipole approximation for the interaction of t mu + He-4 system with the incoming helium atom. The obtained formation rate (normalized to helium density equal to the liquid hydrogen density) increases with temperature from 7.8.10(6) s(-1) for 1000 K to 4.8.10(7) s(-1) for 3000 K. (C) 2015 Elsevier B.V. All rights reserved.