Charming synergies:the role of charm-threshold studies in the search for physics beyond the Standard Model  

“魅力”协同:粲阈值研究在寻找新物理中的作用

作　　者：Guy Wilkinson 

机构地区：[1]Department of Physics,University of Oxford,Oxford OX13RH,UK

出　　处：《Science Bulletin》2021年第22期2251-2253,M0003,共4页科学通报（英文版）

摘　　要：The flavour sector of the Standard Model(SM)of particle physics contains many of the open questions and free parameters of the theory.Why are there six quarks with such a wide span of masses?What determines the hierarchical structure of the Cabibbo-Kobayashi-Maskawa(CKM)matrix?What other sources of CP violation exist in nature in addition to that found in the SM,which is accommodated by a complex phase in the CKM matrix?In recent years,experimental flavour physics has been dominated by studies of beauty and charm hadrons at the LHCb experiment at CERN,with a growing contribution expected in these topics from the Belle II experiment at KEK,Japan.However,precise measurements just above the threshold for charm-meson production in eþe collisions,which are possible at the BESIII experiment on the BEPCII accelerator in Beijing,have a very important and complementary role to play in this programme.

关 键 词：theory. PRECISE COMPLEMENTARY 

分 类 号：O572.33[理学—粒子物理与原子核物理]