Bound Excited States and Resonances of Positronium Molecule

  • Junko Usukura
  • Yasuyuki Suzuki
Part of the Few Body Systems book series (FEWBODY, volume 13)


We investigate various properties of resonance states as well as bound states of positronium molecule. We use the stochastic variational method to calculate the precise energies of the bound states. A primary decay mode of the bound states is 2γ pair annihilation and other decay branches are small except for the electric dipole transition between the P state and the ground state of the positronium molecule. We calculate the resonance states with the complex scaling method and obtain several 0+ resonances below the Ps +e + threshold.


Decay Width Resonance State Electric Dipole Transition Pair Annihilation Total Decay Rate 
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Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • Junko Usukura
    • 1
  • Yasuyuki Suzuki
    • 2
  1. 1.Graduate School of Science and TechnologyNiigata UniversityIkarashi 2, NiigataJapan
  2. 2.Department of PhysicsNiigata UniversityIkarashi 2, NiigataJapan

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