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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Obtenção da relação π°→+ 2y E y → 3π

Santos, Gonçalo Rodrigues dos, Instituto de Engenharia Nuclear 11 1900 (has links)
Submitted by Marcele Costal de Castro (costalcastro@gmail.com) on 2017-09-27T16:16:04Z No. of bitstreams: 1 GONÇALO RODRIGUES DOS SANTOS M.pdf: 1459969 bytes, checksum: 8b3fc490a0a359784ab9aa180749a587 (MD5) / Made available in DSpace on 2017-09-27T16:16:04Z (GMT). No. of bitstreams: 1 GONÇALO RODRIGUES DOS SANTOS M.pdf: 1459969 bytes, checksum: 8b3fc490a0a359784ab9aa180749a587 (MD5) Previous issue date: 1982-11 / Estudamos a amplitude de desintegração y → 3π usando o método de pions duros da álgebra de correntes baseado na técnica das identidades de Ward do grupo quiral SU (2) XSU (2). Este método conduziu a uma expressão geral relacionando os processos y → 3π c π°→ 2y que possibilita reobter, no limite de pions moles, a relação de Adler e introduzir nela correções através do propagador vetorial e do fator de forma eletromagnético do pion.

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