Year: 2025
Type: conference-paper
Abstract: Lightcone distribution amplitudes (LCDAs) within the framework of heavy quark effective theory (HQET) play a crucial role in the theoretical description of weak decays of heavy bottom mesons. However, the first-principle determination of HQET LCDAs faces significant theoretical challenges. In this presentation, we introduce a practical approach to address these obstacles. This makes sequential use of effective field theories. Leveraging the newly-generated lattice ensembles, we present a pioneering lattice calculation, offering new insights into LCDAs for heavy mesons. Additionally, we discuss the impact of these results on the heavy-to-light form factors and briefly give potential future directions in this field.
DOI: 10.22323/1.483.0111
Institutions: Shanghai Jiao Tong University, Chinese Academy of Sciences, Institute of Modern Physics, Shanghai Key Laboratory for Particle Physics and Cosmology, University of Chinese Academy of Sciences, South China Normal University, University of Maryland, College Park, Institute of High Energy Physics, Chinese University of Hong Kong, Chinese University of Hong Kong, Shenzhen, Beihang University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4415516715