Pion mass dependence in $Dπ$ scattering and the $D_0^*(2300)$ resonance from lattice QCD
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909376871137280 |
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| author | Yan, Haobo Liu, Chuan Liu, Liuming Meng, Yu Xing, Hanyang |
| author_facet | Yan, Haobo Liu, Chuan Liu, Liuming Meng, Yu Xing, Hanyang |
| contents | Lattice QCD results for isospin $I=\frac{1}{2}$ $Dπ$ scattering are presented. Utilizing a series of $N_{\text{f}}=2+1$ Wilson-Clover ensembles with pion masses of $m_π\approx 132, 208, 305$ and $317$ MeV, various two-particle operators are constructed and the corresponding finite-volume spectra are determined. The $S$ and $P$-wave scattering phase shifts are then extracted using the Lüscher approach. A clear trend for the motion of the $D_0^*(2300)$ pole is identified. With the physical pion mass configurations also included, this calculation constitutes the first lattice calculation in which the pion mass dependence of the $D_0^*(2300)$ pole is investigated and the scattering lengths are extrapolated/interpolated to the physical pion mass in $Dπ$ scattering. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2404_13479 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Pion mass dependence in $Dπ$ scattering and the $D_0^*(2300)$ resonance from lattice QCD Yan, Haobo Liu, Chuan Liu, Liuming Meng, Yu Xing, Hanyang High Energy Physics - Lattice Lattice QCD results for isospin $I=\frac{1}{2}$ $Dπ$ scattering are presented. Utilizing a series of $N_{\text{f}}=2+1$ Wilson-Clover ensembles with pion masses of $m_π\approx 132, 208, 305$ and $317$ MeV, various two-particle operators are constructed and the corresponding finite-volume spectra are determined. The $S$ and $P$-wave scattering phase shifts are then extracted using the Lüscher approach. A clear trend for the motion of the $D_0^*(2300)$ pole is identified. With the physical pion mass configurations also included, this calculation constitutes the first lattice calculation in which the pion mass dependence of the $D_0^*(2300)$ pole is investigated and the scattering lengths are extrapolated/interpolated to the physical pion mass in $Dπ$ scattering. |
| title | Pion mass dependence in $Dπ$ scattering and the $D_0^*(2300)$ resonance from lattice QCD |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2404.13479 |