Inclusive production of fully-charmed 1^(+-) tetraquark at B factory  

作　　者：Yingsheng Huang Feng Feng Yu Jia Wen-Long Sang De-Shan Yang Jia-Yue Zhang 黄应生;冯锋;贾宇;桑文龙;杨德山;张佳玥(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;School of Physics,University of Chinese Academy of Sciences,Beijing 100049,China;China University of Mining and Technology,Beijing 100083,China;School of Physical Science and Technology,Southwest University,Chongqing 400700,China)

机构地区：[1]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [2]School of Physics,University of Chinese Academy of Sciences,Beijing 100049,China [3]China University of Mining and Technology,Beijing 100083,China [4]School of Physical Science and Technology,Southwest University,Chongqing 400700,China

出　　处：《Chinese Physics C》2021年第9期22-27,共6页中国物理C（英文版）

基　　金：supported in part by the National Natural Science Foundation of China(11925506,11875263,12070131001(CRC110by DFG and NSFC));supported by the National Natural Science Foundation of China(11875318,11505285);by the Yue Qi Young Scholar Project in CUMTB;supported by the National Natural Science Foundation of China(11975187);the Natural Science Foundation of ChongQing(cstc2019jcyj-msxmX0479);supported in part by the National Natural Science Foundation of China(11635009)。

摘　　要：Inspired by the recent discovery of the X(6900) meson in the LHCb experiment,we investigate the inclusive production rate of the C-odd fully-charmed tetraquarks associated with light hadrons at the B factory within the nonrelativistic QCD(NRQCD) factorization framework.The short-distance coefficient is computed at the lowest order of velocity and α_(S).Employing two different kinds of phenomenological models to approximately estimate the long-distance NRQCD matrix element,we predict the rate for the inclusive production of the 1^(+-)T_(4c) state and discuss the observation prospect of the Belle 2 experiment.

关 键 词：fully-heavy tetraquark PRODUCTION NRQCD factorization 

分 类 号：O572.33[理学—粒子物理与原子核物理]