The collision between positronium (Ps) and muonium (Mu)

[摘要] The collision between a positronium(Ps) and a muonium(Mu) is studied for the first time using the static-exchange model and considering the system as a four-centerCoulomb problem in the centerof mass frame. An exact analysis is made to find the s-wave elastic phase-shifts, the scattering-lengths for both singlet and triplet channels, the integrated/total elastic cross section and the quenching cross section due to orthoto para conversion of Ps and the conversion ratio.

[发布机构] Study Center, S-l/407, B. P. Township, Kolkata; 700094, India^1;Department of Physics, New Alipore College, New Alipore, Kolkata; 700053, India^2;National Institute of T.T.T. and Research, Salt Lake City, Kolkata; 700106, India^3;Department of Physics, R.R.R. Mahavidyalaya, Radhanagar, Hoogly; 712406, India^4

[效力级别] 化学

[关键词] Center-of-mass;Conversion ratio;Elastic cross sections;Exact analysis;Exchange models;S-waves;Scattering length;Triplet channel