Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/107776
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.
Editor: 
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.107.103201
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-80052233734&partnerID=40&md5=457db7d6da566d29444361e067d608da
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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