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Hard pion chiral perturbation theory for B -> pi and D -> pi formfactors

Bijnens, Johan LU orcid and Jemos, Ilaria LU (2010) In Nuclear Physics, Section B 840(1-2). p.54-66
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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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
B and D meson semileptonic decays, Chiral perturbation theory
in
Nuclear Physics, Section B
volume
840
issue
1-2
pages
54 - 66
publisher
Elsevier
external identifiers
  • wos:000281832900003
  • scopus:77955657336
ISSN
0550-3213
DOI
10.1016/j.nuclphysb.2010.06.021
language
English
LU publication?
yes
id
32694e7d-79f8-465a-a278-fa910d9fc237 (old id 1726878)
date added to LUP
2016-04-01 13:59:25
date last changed
2025-01-30 21:14:02
@article{32694e7d-79f8-465a-a278-fa910d9fc237,
  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.}},
  author       = {{Bijnens, Johan and Jemos, Ilaria}},
  issn         = {{0550-3213}},
  keywords     = {{B and D meson semileptonic decays; Chiral perturbation theory}},
  language     = {{eng}},
  number       = {{1-2}},
  pages        = {{54--66}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Physics, Section B}},
  title        = {{Hard pion chiral perturbation theory for B -> pi and D -> pi formfactors}},
  url          = {{http://dx.doi.org/10.1016/j.nuclphysb.2010.06.021}},
  doi          = {{10.1016/j.nuclphysb.2010.06.021}},
  volume       = {{840}},
  year         = {{2010}},
}