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  • Bijnens, Johan, et al. (author)
  • Hard pion chiral perturbation theory for B -> pi and D -> pi formfactors
  • 2010
  • In: Nuclear Physics, Section B. - : Elsevier BV. - 0550-3213. ; 840:1-2, s. 54-66
  • Journal article (peer-reviewed)abstract
    • We use one-loop Heavy Meson Chiral Perturbation Theory (HMChPT) as well as a relativistic formulation to calculate the chiral logarithms m(pi)(2) log (m(pi)(2)/mu(2)) contributing to the formfactors of the semileptonic B -> pi decays at momentum transfer q(2) away from q(max)(2) = (m(B) - m(pi))(2). We give arguments why this chiral behaviour is reliable even in the energy regime with hard or fast pions. These results can be used to extrapolate the formfactors calculated on the lattice to lower light meson masses. (C) 2010 Elsevier B.V. All rights reserved.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Bijnens, Johan (1)
Jemos, Ilaria (1)
University
Lund University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2010 (1)

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