Standard model effective field theory from on-shell amplitudes  

作　　者：马腾 舒菁 肖明磊 Teng Ma;Jing Shu;Ming-Lei Xiao(CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;CAS Center for Excellence in Particle Physics,Beijing 100049,China;Center for High Energy Physics,Peking University,Beijing 100871,China)

机构地区：[1]CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China [2]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [3]CAS Center for Excellence in Particle Physics,Beijing 100049,China [4]Center for High Energy Physics,Peking University,Beijing 100871,China

出　　处：《Chinese Physics C》2023年第2期55-62,共8页中国物理C（英文版）

基　　金：supported in part by a project (Y6Y2581B11) funded by 2016 National Postdoctoral Program for Innovative Talents;supported by the National Nat-ural Science Foundation of China (NSFC)(11847612,11690022,11851302,11675243,11761141011);supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB21010200,XDB23000000);supported by the 2019 International Postdoctoral Exchange Fellowship Program。

摘　　要：We present a general method of constructing unfactorizable on-shell amplitudes(amplitude basis) and build up their one-to-one correspondence to the independent and complete operator basis in effective field theory(EFT).We apply our method to the Standard Model EFT and identify the amplitude basis in dimensions 5 and 6,which correspond to the Weinberg operator and operators in the Warsaw basis,except for some linear combinations.

关 键 词：effective field theory scattering amplitude SMEFT SMEFT construction 

分 类 号：O412.3[理学—理论物理]