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Author  |
Luo, J.; Wu, B.; Shi, P.P.; Du, M.L. |
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Title |
Analysis of the D0* (2300) resonance from lattice QCD under chiral symmetry |
Type |
Journal Article |
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Year |
2026 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
114 |
Issue |
1 |
Pages |
014066 - 16pp |
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Abstract |
We reanalyze the lattice spectra for I = 1/2 D pi scattering in the A & thorn;1 irreducible representation from [Phys. Rev. D 111, 014503 (2025)] to investigate the impact of chiral and SU(3) flavor symmetries in Swave D pi scattering and the D-0*(2300) resonance. By fitting the phase shifts obtained via Luscher's formula with both traditional and chirally modified effective-range expansion and K-matrix parametrizations, we find that the chiral factor shifts the extracted pole mass closer to the threshold (especially for resonances) and substantially reduces the resonance width. These findings are confirmed by unitarized chiral perturbation theory through a direct fit to the lattice spectra with both the single-channel and the D pi-D eta-DsK & strns; coupled-channel schemes. Once the coupled channels are incorporated, the two-pole structure of the D-0*(2300) emerges. The trajectories of the two poles are investigated by varying the pion mass. |
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Address |
[Luo, Jing; Wu, Bing; Du, Meng-Lin] Univ Elect Sci & Technol China, Sch Phys, Chengdu 611731, Peoples R China, Email: wu.bing@uestc.edu.cn; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001839720700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7366 |
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