Using A^(+)_(c)→pK^(-)π^(+) as aspin polarimeter  

作　　者：Dai-Hui Wei Yong-Xu Yang Rong-Gang Ping 魏代会;杨永栩;平荣刚(School of Physical Science and Technology,Guangxi Normal University Guilin 541004,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Science,Beijing 100049,China)

机构地区：[1]School of Physical Seience and Technology,Guangxi Normal University Guilin 541004,China [2]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [3]University of Chinese Academy of Science,Beijing 100049,China

出　　处：《Chinese Physics C》2022年第7期85-92,共8页中国物理C（英文版）

基　　金：Partly supported by the National Natural Science Foundation of China NSFC(11875262,11875115);Joint Large-Scale Scientific Facility Funds ofthe NSFC and Chinese Academy of Sciences(U2032110)。

摘　　要：Polarization transfer measurement plays an important role in the search for new physics processes incharmed baryon decays.The measurement of the A^(+)_(c)→pK^(-)π^(+) decay is suggested asaspinpolarimeter.A general description of the decay is developed using Euler angles,and the polarization parameters are derived.Its relationship with parity violation is found using the phenomenological amplitude model.A Monte-Carlo simulation is performed,and the results show that charmed baryon polarization iswell determined usingaset ofMonte-Carloevents with selected asymmetry parameters.The experimental measurement of these asymmetry parameters is suggested.

关 键 词：A_(c)baryon POLARIZATION 

分 类 号：O572.34[理学—粒子物理与原子核物理]