This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 131.243.223.178 This content was downloaded on 29/11/2016 at 19:12 Please note that terms and conditions apply. Positron-helium scattering length View the table of contents for this issue, or go to the journal homepage for more 1974 J. Phys. B: At. Mol. Phys. 7 1562 (http://iopscience.iop.org/0022-3700/7/12/015) Home Search Collections Journals About Contact us My IOPscience You may also be interested in: Variational calculations of the positron-helium scattering length using approximate target wavefunctions S K Houston The importance of being correctly polarizable Y K Ho and P A Fraser Calculation of electron or positron-atom scattering lengths using approximate target wavefunctions B A P Page Positron-atom scattering using a modified Kohn variational technique B A P Page Effect of inaccuracy of atomic wavefunction in variational calculations of scattering length R Peterkop and L Rabik S-wave collisions of positrons with helium Y K Ho and P A Fraser The method of models in variational scattering calculations R J Drachman Simplified model for the scattering of zero energy electrons by helium atoms S K Houston The S-wave elastic scattering of positrons by helium in the coupled static approximation Y K Ho, P A Fraser and M Kraidy