Physics NotePublished
A Phenomenological Analysis of Non-Resonant Charm Meson Decays
Ignácio Alfonso de Bediaga e Hickman; Carla Göbel; Méndez-Galain
1997
Publication details
- Authors
- Ignácio Alfonso de Bediaga e Hickman; Carla Göbel; Méndez-Galain
- Type
- Physics Note
- Status
- Published
- Publication date
- 1997
- Description
- We analyse the consequences of the usual assumption of a constant function to fit non-resonant decays from experimental Dalitz plot describing charmed meson decays. We first show, using the <math>D^+\rightarrow \bar{K}^0\pi^+\pi^0\,\!</math> decay channel as an example, how an inadequate extraction of the non-resonant contribution could yield incorrect measurements for the resonant channels. We analyse how the correct study of this decay will provide a test for the validity of factorization in D meson decays. Finally, we show how form factors could be extracted from non-resonant decays. In particular we discuss the form factor that can be measured from the <math>D^+_s\rightarrow \pi^-\pi^+\pi^+\,\!</math> decay. We emphasize its relevance for the study of the decay <math>\tau \to \nu_{\tau} 3\pi\,\!</math> and the extraction of the <math>a_1\,\!</math> meson width.
- Year
- 1997
- Number
- CBPF-NF-039/97
- Linked to a thesis
- No
- Linked to a grant
- No