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12–16 May 2025
Tsung-Dao Lee Institute
Asia/Shanghai timezone

Semileptonic Charm Decay at N3LO in perturbative QCD

12 May 2025, 16:55
20m
Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall

Tsung-Dao Lee Institute

200

Speaker

Dr Long Chen (Shandong University)

Description

Semileptonic decays of charm-flavored hadrons, particularly D mesons, offer important avenues to address key questions in heavy-flavor physics, such as the long-standing discrepancy between inclusive and exclusive determinations of CKM matrix elements involving charm quarks. Precision measurements of semileptonic D-meson decays demand equally accurate theoretical predictions, for which QCD corrections, especially at the charm mass scale, are essential. In this talk, we present recently computed third-order perturbative QCD corrections (in the strong coupling) to semileptonic charm decays, covering both the inclusive decay width and several moments.

Primary authors

Dr Long Chen (Shandong University) Dr Xiang Chen (Peking University) Dr Xin Guan (Peking University) Prof. Yan-Qing Ma (Peking University)

Presentation materials