Abstract
We construct a chiral formalism for processes involving both energetic hadrons and soft Goldstone bosons, which extends the application of soft-collinear effective theory to multibody B decays. The nonfactorizable helicity amplitudes for heavy meson decays into multibody final states satisfy symmetry relations analogous to the large energy form factor relations, which are broken at leading order in Λ/mb by calculable factorizable terms. We use the chiral effective theory to compute the leading corrections to these symmetry relations in B→Mnπℓν̄ and B→Mnπℓ+ℓ- decays, with one energetic meson Mn and one soft pion.
Original language | English |
---|---|
Pages (from-to) | 213-220 |
Number of pages | 8 |
Journal | Physics Letters B |
Volume | 615 |
Issue number | 3-4 |
DOIs | |
State | Published - 2 Jun 2005 |