Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Multimode Vibrational Couplings In Resonant Positron Annihilation
Author: D'A.Sanchez S.
Lima M.A.P.
Varella M.T.D.N.
Abstract: The mechanisms for multimode vibrational couplings in resonant positron annihilation are not well understood. We show that these resonances can arise from positron-induced distortions of the potential energy surface (target response to the positron field). Though these distortions can transfer energy into single- and multiquantum vibrations, they have so far been disregarded as a pathway to resonant annihilation. We also compare the existing annihilation theories and show that the currently accepted model can be cast as a special case of the Feshbach annihilation theory. © 2011 American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.107.103201
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.