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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24035
Title: 
NONLEPTONIC ANNIHILATION DECAYS of B MESON WITH A NATURAL INFRARED CUTOFF
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0217-751X
Sponsorship: 
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Abstract: 
Within the QCD factorization approach we compute the amplitudes for pure annihilation channels of B mesons decays into final states containing two pseudoscalar particles. These decays may be plagued by effects like nonperturbative physics and breaking of the factorization hypothesis and imply, at some extent, the introduction of an infrared cutoff in the calculation of amplitudes. We compute the decays with the help of infrared finite gluon propagators and coupling constants that were obtained in different solutions of the QCD Schwinger-Dyson equations. These solutions yield a natural cutoff for the amplitudes, and we argue that a systematic study of these B decays may provide a test for the QCD infrared behavior.
Issue Date: 
10-Sep-2009
Citation: 
International Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 24, n. 22, p. 4133-4155, 2009.
Time Duration: 
4133-4155
Publisher: 
World Scientific Publ Co Pte Ltd
Keywords: 
  • B meson
  • hadronic decays
  • infrared cutoff
Source: 
http://dx.doi.org/10.1142/S0217751X09044656
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24035
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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