Lattice QCD calculation of charmed baryon decay constants at continuum limit and physical mass
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arXiv
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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
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| _version_ | 1866917166342733824 |
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| author | Li, Lei-Yi Ran, Jie Cai, Meng-Chu Gao, Hao-Fei Gu, Yu Han, Xue-Ying Hua, Jun Tan, Jin-Xin Wang, Guang-Yu Wang, Wei Xu, Fanrong Yang, Yi-Bo Zhang, Qi-An |
| author_facet | Li, Lei-Yi Ran, Jie Cai, Meng-Chu Gao, Hao-Fei Gu, Yu Han, Xue-Ying Hua, Jun Tan, Jin-Xin Wang, Guang-Yu Wang, Wei Xu, Fanrong Yang, Yi-Bo Zhang, Qi-An |
| contents | We present the first principle calculation of charmed baryon decay constants employing 2+1 flavor gauge ensembles with lattice spacings ranging from 0.05 to 0.1 fm and pion masses between 136 and 310 MeV. Under $SU(3)$ flavor symmetry, we construct the charmed baryon interpolating operators and compute the corresponding hadronic matrix elements to extract the bare decay constants for each ensemble. The non-perturbative renormalization is performed via the symmetric momentum-subtraction scheme. After performing systematic chiral and continuum extrapolations, we obtain the decay constants with a precision of $8\sim 16\%$ from first principles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_20372 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Lattice QCD calculation of charmed baryon decay constants at continuum limit and physical mass Li, Lei-Yi Ran, Jie Cai, Meng-Chu Gao, Hao-Fei Gu, Yu Han, Xue-Ying Hua, Jun Tan, Jin-Xin Wang, Guang-Yu Wang, Wei Xu, Fanrong Yang, Yi-Bo Zhang, Qi-An High Energy Physics - Lattice We present the first principle calculation of charmed baryon decay constants employing 2+1 flavor gauge ensembles with lattice spacings ranging from 0.05 to 0.1 fm and pion masses between 136 and 310 MeV. Under $SU(3)$ flavor symmetry, we construct the charmed baryon interpolating operators and compute the corresponding hadronic matrix elements to extract the bare decay constants for each ensemble. The non-perturbative renormalization is performed via the symmetric momentum-subtraction scheme. After performing systematic chiral and continuum extrapolations, we obtain the decay constants with a precision of $8\sim 16\%$ from first principles. |
| title | Lattice QCD calculation of charmed baryon decay constants at continuum limit and physical mass |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2512.20372 |