Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-09-30
Phys.Rev.Lett.101:183001,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages
Scientific paper
10.1103/PhysRevLett.101.183001
The energy interval between the ground and the P-wave excited states of the recently discovered positronium molecule Ps_2 is evaluated, including the relativistic and the leading logarithmic radiative corrections, E_P-E_S = 0.181 586 7(8) a.u. The P-state, decaying usually via annihilation, is found to decay into the ground state by an electric dipole transition 19 percent of the time. Anticipated observation of this transition will provide insight into this exotic system.
Czarnecki Andrzej
Puchalski Mariusz
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