$D^+ \to K^- \p^+ \p^+ $: the low-energy sector

D. R. Boito; P. C. Magalh\~aes; M. R. Robilotta; G. R. S.; Zarnauskas

arXiv:0805.0552·hep-ph·November 13, 2009

$D^+ \to K^- \p^+ \p^+ $: the low-energy sector

D. R. Boito, P. C. Magalh\~aes, M. R. Robilotta, G. R. S., Zarnauskas

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TL;DR

This paper develops a chiral Lagrangian model including scalar resonances to describe the low-energy decay process of D+ to K- pi+ pi+, providing five S-wave amplitudes for data analysis.

Contribution

It introduces a set of five S-wave amplitudes derived from an effective SU(3) chiral Lagrangian including scalar resonances for the first time.

Findings

01

Provides explicit S-wave amplitudes for D+ decay

02

Enhances analysis tools for low-energy charm decays

03

Facilitates comparison with experimental data

Abstract

An effective $S U (3) \times S U (3)$ chiral lagrangian, which includes scalar resonances, is used to describe the process $D^{+} \rar K^{-} \p^{+} \p^{+}$ at low-energies. Our main result is a set of five $S$ -wave amplitudes, suited to be used in analyses of production data.

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