Nature of the D0* meson in D π scattering with chiral symmetry
Abstract
We study the nature of the scalar D0* meson from the viewpoint of chiral symmetry. With the linear representation of chiral symmetry, we construct the D π scattering amplitude satisfying the chiral low-energy theorem, in which the D0* meson appears as an s -wave resonance. We show that the properties of the D0* meson can be successfully reproduced as the chiral partner of the D meson coupled with the D π scattering states. At the same time, we find that the spectral function and the pole position of D0* are not very sensitive to the reduction of the chiral condensate, indicating the importance of the dressing of the bare state by the D π molecular component.
- Publication:
-
Physical Review C
- Pub Date:
- June 2019
- DOI:
- 10.1103/PhysRevC.99.065201
- arXiv:
- arXiv:1904.00589
- Bibcode:
- 2019PhRvC..99f5201S
- Keywords:
-
- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- 7 pages, 3 figures