Speaker
Description
Gradient flow provides a powerful framework for smoothing gauge fields over an auxiliary flow time, systematically suppressing ultraviolet fluctuations while preserving the long-distance physics of QCD. In lattice gauge theory, this has led to improved definitions of renormalized observables, precise scale setting, and new strategies for controlling discretization and renormalization effects. This talk will briefly introduce the basic idea of gradient flow and discuss its potential applications in heavy flavor physics, where precision calculations of charm- and bottom-quark observables are essential. Possible directions include improved determinations of heavy-light matrix elements, form factors, decay constants, and operator renormalization, renormalon subtraction as well as applications to effective theories such as HQET. By reducing ultraviolet noise and offering clean nonperturbative definitions of flowed operators, gradient flow may provide new tools for addressing some of the key systematic uncertainties in heavy flavor phenomenology.
| 请选择分会 | 强子物理与味物理 |
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