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Volume 332 - XIV International Conference on Heavy Quarks and Leptons (HQL2018) - Spectroscopy
A Novel Model to $D^+ \to K^+ K^- K^+$ decay amplitude
P. Magalhães,* R.T. Aoude, A.C. dos Reis, M.R. Robilotta
*corresponding author
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Pre-published on: 2018 December 05
Published on: 2018 December 11
We propose a novel approach to describe the $D^+\to K^+K^-K^+$ decay
amplitude, based on chiral effective Lagrangians, which can be used
to extract information about $K\bar{K}$ scattering.
Our trial function is an alternative to the widely used isobar model and
includes both nonresonant three-body interactions and
two-body rescattering amplitudes, based on coupled channels and resonances,
for S- and P-waves with isospin $0$ and $1$.
The latter are unitarized in the $K$-matrix approximation and represent the only
source of complex phases in the problem.
This approach allows one to disentangle the two-body scalar contributions with
different isospins, associated with the $f_0(980)$ and $a_0(980)$ channels.
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