1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an IHEP SSO account through https://login.ihep.ac.cn/regist.jsp Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 100 Mb.
PKU HEP Seminar and Workshop (北京大学高能物理组)

On the nature of X(6900) and other possible states in the LHCb di-J/psi spectrum

by Prof. De liang Yao (Hunan University)

Asia/Shanghai
B105 (CHEP)

B105

CHEP

School of Physics, PKU
Description
Partial wave analysis is performed, with effective potentials as dynamical inputs, to scrutinize the recent LHCb data on the di-J/psi invariant mass spectrum. Coupled-channel effects are implemented in the production amplitude via final state interactions. The LHCb data can be well described. A dynamical generated pole structure, which can be identified as the X(6900) state, is found. Our analysis also provides hints for the existence of three other possible states: a bound state X(6200), a broad resonant state X(6670) and a narrow resonant state X(7200). Furthermore, the J^{PC} quantum numbers of the X(6670) and X(6900) states should be 2^{++}, while the X(6200) and X(7200) states prefer 0^{++}. 报告人简介:姚德良,2013年博士毕业于北京大学。2013年至2016年,在德国Juelich研究中心从事博士后研究;2016年至2018年,西班牙国家研究委员会IFIC研究所从事博士后研究;2018年至2019年,任中国科学院近代物理研究所研究员;2019年至今,任湖南大学教授。研究方向主要是利用有效场论(手征微扰理论)与色散关系研究强子物理和核物理。近年来,致力于高精度计算介子核子散射等一些基本过程,发展不稳定粒子的手征动力学,将手征微扰理论推广到中高能区域,利用分波技术研究奇特强子态等。 Online Tencent/VOOV meeting: Meeting ID: 319 742 781 Password: 456122 (链接 https://meeting.tencent.com/s/7RHPTA85PLI5)
Slides
Participants
  • Dayong Wang
  • Hong-Hao Ma
  • Katsuya Hashino
  • Peng-Cheng Li
  • QuZhi Li
  • Shian Tang
  • Teng Xiang
  • wu shanjin
  • Xiong-Hui Cao
  • Xuelong Qin
  • Yu Chen
  • Yuanyuan Wang
  • Yunxuan Song
  • zhengxue ren
  • 侃 陈
  • 志宏 沈
  • 昕海 谢
  • 杜鑫 郑
  • 楚翘 蒋
  • 沁芳 曹
  • 皓 陈
  • 立诚 章
  • 锐 陈