|
CAS Key Laboratory of Theoretical Physics |
|
Institute of Theoretical Physics |
|
Chinese Academy of Sciences |
|
Seminar |
|
Title
题目 |
Three-body dynamics in scattering and in finite volume |
|
Speaker
报告人 |
Prof. Michael Döring |
|
Affiliation
所在单位 |
The George Washington University |
|
Date
日期 |
2017年10月24日（周二）上午9:30 |
|
Venue
地点 |
Room 6420, ITP NEW BUILDING |
|
Abstract
摘要 |
Three-body channels play a relevant and sometimes dominant role at the energies of the resonance region. With dispersion relations a manifestly three-body unitary amplitude is derived. It could be used for data analysis of experiments like BES, COMPASS, or GlueX in the future.
In view of upcoming lattice QCD calculations concerning three-body systems, unitarity identifies the imaginary parts of the amplitude where all particles are on-shell. Such states induce the leading power-law finite-volume effects that need to be known to extrapolate to the infinite volume. This extrapolation is demonstrated for spinless particles and one spinless isobar. |
|
Contact person
所内联系人 |
郭奉坤 |
