Symmetry of Dipositronium Ps_{2}
Abstract
We work out the complete symmetry and spin problem for diatomic positronium Ps_{2} for the ground and singly excited states of zero orbital angular momentum. The general form of the wave function for each state is given, with due regard to charge conjugation parity. Annihilation rates are discussed, and correlations to dissociation products are deduced. We indicate how the approach is extensible to larger aggregates: i.e., PsPs_{n}, n>2.
 Publication:

Physical Review Letters
 Pub Date:
 January 2004
 DOI:
 10.1103/PhysRevLett.92.043401
 Bibcode:
 2004PhRvL..92d3401S
 Keywords:

 36.10.Dr;
 03.65.Fd;
 11.30.Er;
 Positronium muonium muonic atoms and molecules;
 Algebraic methods;
 Charge conjugation parity time reversal and other discrete symmetries