PT Journal
AU Albaladejo, M
   Nieves, J
   Ruiz Arriola, E
TI Femtoscopic signatures of the lightest S-wave scalar open-charm mesons
SO Physical Review D
JI Phys. Rev. D
PY 2023
BP 014020
EP 7pp
VL 108
DI 10.1103/PhysRevD.108.014020
AB We predict femtoscopy correlation functions for S-wave D(s)ϕ pairs of lightest pseudoscalar open-charm mesons and Goldstone bosons from next-to-leading-order unitarized heavy-meson chiral perturbation theory amplitudes. The effect of the two-state structure around 2300 MeV can be clearly seen in the (S,I)=(0,1/2) Dπ, Dη, and Ds¯K correlation functions, while in the scalar-strange (1,0) sector, the D∗s0(2317)± state lying below the DK threshold produces a depletion of the correlation function near threshold. These exotic states owe their existence to the nonperturbative dynamics of Goldstone-boson scattering off D(s). The predicted correlation functions could be experimentally measured and will shed light into the hadron spectrum, confirming that it should be viewed as more than a collection of quark model states.
ER