Role of the scalar f_(0)(980)in the process D_(s)^(+)→π^(+)π^(0)π^(0*)  

作　　者：张晗 吕云鹤 刘利娟 王恩 Han Zhang;Yun-He Lyu;Li-Juan Liu;En Wang(School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Physics C》2023年第4期41-47,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12192263);the Natural Science Foundation of Henan Province,China(222300420554);the Project of Youth Backbone Teachers of Colleges and Universities of Henan Province,China(2020GGJS017);the Youth Talent Support Project of Henan Province,China(2021HYTP002);the Open Project of Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology(NLK2021-08)。

摘　　要：Based on BESⅢmeasurements of the reaction D_(s)^(+)→π^(+)π^(0)π^(0),we investigate this process by considering the S-wave pseudoscalar-pseudoscalar interaction within the unitary chiral approach and the contributions from the intermediate resonances f_(0)(1370)and f_(2)(1270).Our calculation can reasonably reproduce the experimental data,and our results imply that f_(0)(980),which is dynamically generated from the S-wave pseudo scalar-pseudo scalar interaction,plays an important role in this process,and the contributions from the intermediate resonances f_(0)(1370)and f_(2)(1270)are also necessary.More precise measurements of this process in future can shed light on the nature of f_(0)(1370)and f_(2)(1270).

关 键 词：Dx decay fo(980) chiral unitary approach 

分 类 号：O572.33[理学—粒子物理与原子核物理]