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A General Quantum Mechanical Method to Predict Positron Spectroscopy

A General Quantum Mechanical Method to Predict Positron Spectroscopy

Paperback

General EducationGeneral SciencePhysics

ISBN10: 1249590957
ISBN13: 9781249590958
Publisher: Biblioscholar
Published: Oct 9 2012
Pages: 208
Weight: 0.66
Height: 0.44 Width: 6.14 Depth: 9.21
Language: English

The NEO method was modified and extended to positron systems. NEO-MP2 energies and annihilation rates were calculated for PsH, and the effects of basis set size on correlation energies captured with the NEO-MP2 and NEO-FCI methods are compared and discussed. Equilibrium geometries and vibrational energy levels were computed for the LiX and e+LiX (X = H, F, Cl) systems at the MP2 and NEO-MP2 levels. It was found that anharmonicity plays a significant role, specifically in the differences between the vibrational energy levels of the LiX and e+LiX systems. The implications of these results with respect to VFR for these systems is discussed.

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