Two-photon annihilation rate of the positronic HCN molecule |
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| Authors: | Małgorzata M. Wołcyrz Henryk Chojnacki |
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| Affiliation: | Theoretical Chemistry Group , Institute of Physical and Theoretical Chemistry, Wroc?aw University of Technology , Wybrze?e Wyspiańskiego 27, 50-370 Wroc?aw , Poland |
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| Abstract: | Positron binding by the HCN molecule was studied within a modified adiabatic approximation. This approach, in which the positron is treated as a light pseudonucleus with fractional charge, leads to the binding energy of 0.65?mHartree. Using effective positron mass which reproduces the Quantum Monte Carlo binding energy gives an estimation of the two-photon annihilation rate of e +HCN, equal to 0.091?ns?1. |
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| Keywords: | positron binding positronic molecule annihilation rate batic approximation |
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