The factorization-assisted topological-amplitude approach and its applications  

作　　者：Qin Qin Chao Wang Di Wang Si-Hong Zhou 

机构地区：[1]School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China [2]Faculty of Mathematics and Physics,Huaiyin Institute of Technology,Huaian 223001,China [3]Department of Physics,Hunan Normal University,Changsha 410081,China [4]School of Physical Science and Technology,Inner Mongolia University,Hohhot 010021,China

出　　处：《Frontiers of physics》2023年第6期1-14,共14页物理学前沿（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.12005068,12105148,12105112,and 12105099);the Natural Science Foundation of Jiangsu Education Committee (Grant No.21KJB140027).

摘　　要：Heavy meson decays provide an important platform for studies of both QCD and electroweak dynamics,which may contain some portals to understanding of nonperturbative QCD and physics beyond the Standard Model.The factorization-assisted topological-amplitude approach was proposed to study two-body non-leptonic D meson decays,where a promising QCD inspired approach from first principles is still missing.It was also applied to B meson decays whose subleading power contributions are difficult to calculate.By factorizing topological amplitudes into short distance Wilson coefficients and long distance hadronic matrix elements either to be calculated or to be parameterized,it provides an effective framework to extract information of nonperturbative dynamics involved.With important flavor SU(3)breaking effects taken into account,the data of the decay branching ratios(and also CP asymmetries in B decays)can be fitted well.The extracted amplitudes were further applied to make predictions for other observables,such as CP asymmetries in D decays,mixing parameters in the system.By this review,we will describe the formulation of the factorization-assisted topological-amplitude approach and summarize its applications in D and B meson decays and highlight some of its achievements.

关 键 词：heavy meson decay factorization-assisted topologicalamplitudeapproach SU(3)breaking 

分 类 号：O57[理学—粒子物理与原子核物理]