Journal ArticleDOI
Chiral perturbation theory for hadrons containing a heavy quark.
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TLDR
An effective Lagrangian that describes the low-momentum interactions of mesons containing a heavy quark with the pseudo Goldstone bosons and $\ensuremath{\eta}$ is constructed, invariant under both heavy-quark spin symmetry and chiral symmetry.Abstract:
An effective Lagrangian that describes the low-momentum interactions of mesons containing a heavy quark with the pseudo Goldstone bosons $\ensuremath{\pi}$, $K$, and $\ensuremath{\eta}$ is constructed. It is invariant under both heavy-quark spin symmetry and chiral ${\mathrm{SU}(3)}_{L}\ifmmode\times\else\texttimes\fi{}{\mathrm{SU}(3)}_{R}$ symmetry. Implications for semileptonic $B$ and $D$ decays are discussed.read more
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Journal ArticleDOI
Isgur-Wise function within a modified heavy-light chiral quark model
Jan O. Eeg,Krešimir Kumerički +1 more
TL;DR: In this article, the Isgur-Wise function is considered within a modified version of a heavy-light chiral quark model, and it is shown how extended version(s) may lead to values around -1, in better agreement with recent measurements.
Final state interaction on $B^+ \to π^-π^+π^+$
I. Bediaga,P. C. Magalhães +1 more
Abstract: Abstract The large localized CP asymmetries observed by LHCb in three-body charmless decays of B mesons brings new challenge for experimentalists and their traditional models to fit data. With higher statistics, rescattering and three-body effects, previously ignored on data analysis, become more visible. The time is ripe to use better theoretical assumptions as an ingredient in order to improve the analysis. In this paper we address the issue of rescattering effects in the charmless three-body decays of B mesons. In particular, we study the case of the B+ → π−π+π+ decay and show that the presence of hadronic loops shifts the P-wave phase near threshold to below zero, and modify the position of the ρ-meson peak and it width, in the Dalitz plot.
Journal ArticleDOI
A holographic model of heavy-light mesons
Yang Bai,Hsin-Chia Cheng +1 more
TL;DR: In this paper, a holographic model of heavy-light mesons was constructed by extending the AdS/QCD to incorporate the behavior of the heavy quark limit, where the QCD dynamics is governed by the light quark.
Journal ArticleDOI
Photoproduction of charmed vector mesons, gamma + N ---> beta(c) + anti-D*, with beta(c) = Lambda(c) or Sigma(c)
TL;DR: In this article, the energy and angular dependence of the associative vector charmed by a pseudoscalar D-meson exchange model has been predicted in terms of phenomenological form factors and the predicted values of the cross section are sizeable enough to be measured in the near threshold region.