Positron vertex renormalization of the effective electron-positron interaction |
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| Authors: | M BaldoR Pucci |
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| Institution: | Istituto di Fisica Teorica dell''Università di Catania and I.N.F.N., Sezione di Catania, Italy |
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| Abstract: | An explicit expression for the positron vertex function in an electron liquid is derived. It is shown that positron vertex corrections to the effective electron-positron interaction are relevant and can be of help in explaining some discrepancies between theory and experiments in positron annihilation. |
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