Decay rates of planar helium J. Madroñero, P. Schlagheck, L. Hilico, B. Grémaud, D. Delande and A. Buchleitner Europhys. Lett., 70 2 (2005) 183-189 Published online: 16 March 2005 DOI: 10.1209/epl/i2004-10474-0