Real radiative decays of heavy pseudoscalar mesons
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866917354791763968 |
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| author | Jose, Teseo San Aoki, Yasumichi Di Carlo, Matteo Erben, Felix Gülpers, Vera Hansen, Maxwell T. Hashimoto, Shoji Hermansson-Truedsson, Nils Hill, Ryan Kaneko, Takashi Portelli, Antonin Tsang, Justus Tobias |
| author_facet | Jose, Teseo San Aoki, Yasumichi Di Carlo, Matteo Erben, Felix Gülpers, Vera Hansen, Maxwell T. Hashimoto, Shoji Hermansson-Truedsson, Nils Hill, Ryan Kaneko, Takashi Portelli, Antonin Tsang, Justus Tobias |
| contents | We report our ongoing lattice QCD study of radiative leptonic decays of the charged pseudoscalar mesons $D$, $D_s$, $B$, and $B_c \to \ell ν_\ell γ$. We carry out our analysis on a single JLQCD ensemble with lattice spacing $a=0.044~\text{fm}$. This work is a step towards a complete QCD+QED lattice calculation of these modes, aimed at reducing theoretical uncertainties in the extraction of $|V_{cd}|$ and $|V_{cs}|$ and providing first-principles estimates of the corresponding form factors in the $B$ sector. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_19960 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Real radiative decays of heavy pseudoscalar mesons Jose, Teseo San Aoki, Yasumichi Di Carlo, Matteo Erben, Felix Gülpers, Vera Hansen, Maxwell T. Hashimoto, Shoji Hermansson-Truedsson, Nils Hill, Ryan Kaneko, Takashi Portelli, Antonin Tsang, Justus Tobias High Energy Physics - Lattice We report our ongoing lattice QCD study of radiative leptonic decays of the charged pseudoscalar mesons $D$, $D_s$, $B$, and $B_c \to \ell ν_\ell γ$. We carry out our analysis on a single JLQCD ensemble with lattice spacing $a=0.044~\text{fm}$. This work is a step towards a complete QCD+QED lattice calculation of these modes, aimed at reducing theoretical uncertainties in the extraction of $|V_{cd}|$ and $|V_{cs}|$ and providing first-principles estimates of the corresponding form factors in the $B$ sector. |
| title | Real radiative decays of heavy pseudoscalar mesons |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2603.19960 |