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APS » Journals » Phys. Rev. Lett. » Volume 97 » Issue 18
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Phys. Rev. Lett. 97, 183402 (2006) [4 pages]

Existence of a 2Po Excited State for the e+Ca System

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M. W. J. Bromley*
Department of Physics, San Diego State University, San Diego California 92182, USA

J. Mitroy†
Faculty of Technology, Charles Darwin University, Darwin NT 0909, Australia

Received 31 August 2006; published 3 November 2006

The configuration interaction method is used to demonstrate that there is an electronically stable state of positronic calcium with an orbital angular momentum of L=1. This prediction relies on the use of an asymptotic series to estimate the variational limit of the energy. The best estimate of the binding energy is 37 meV. A discussion of the structure of the system is also presented.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.183402
DOI:
10.1103/PhysRevLett.97.183402
PACS:
36.10.Dr

*Electronic address: mbromley@physics.sdsu.edu

†Electronic address: jxm107@rsphysse.anu.edu.au

 
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