| Institute of Theoretical Physics |
| Key Laboratory of Theoretical Physics |
| Chinese Academy of Sciences |
| Colloquium |
| Title 题目 | Multiquark Hadrons - A New Facet of QCD |
| Speaker 报告人 | Prof. Ahmed Ali |
| Affiliation 所在单位 | DESY Theory Group, Germany |
| Date 日期 | 10:00 a.m. Monday, 24 October 2016 |
| Venue 地点 | 理论物理所新楼6620报告厅 |
| Abstract 摘要 | I review some selected aspects of the phenomenology of multiquark states discovered in high energy experiments. They have four valence quarks (called tetraquarks) and two of them are found to have five valence quarks (called pentaquarks), extending the conventional hadron spectrum which consists of quark-antiquark (q q) mesons and qqq baryons. Multiquark states represent a new facet of QCD and their dynamics is both challenging and currently poorly understood. I discuss various approaches put forward to accommodate them, with emphasis on the diquark model. |
| Contact person 所内合作者 | Bing-Song Zou |
