Speaker
Description
Light-cone distribution amplitudes (LCDAs) are fundamental nonperturbative objects governing hard exclusive processes and heavy-flavor decays. Over the past decades, lattice QCD studies of LCDAs have evolved from traditional calculations of low-order moments to the recent development of approaches based on large-momentum effective theory (LaMET), which enable direct access to the Bjorken-x dependence of hadron structure.
In this talk, I will review recent progress in lattice QCD determinations of LCDAs, with an emphasis on developments within the LaMET framework. I will first summarize the status of conventional moment calculations and their phenomenological implications, and then discuss the theoretical foundations of LaMET, including renormalization, perturbative matching, and the control of systematic uncertainties. I will further review recent lattice studies of light-meson, heavy-meson, and baryon LCDAs, highlighting both methodological advances and emerging physics results. Particular attention will be given to recent progress in the LaMET investigation of pseudoscalar and vector mesons, the B-meson LCDA, and exploratory studies of baryonic LCDAs. Finally, I will comment on remaining challenges and future opportunities for precision studies of hadron structure from lattice QCD.
| 请选择分会 | 强子物理与味物理 |
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