第三十届HAPOF论坛，Two-particle scattering from finite-volume quantization conditions using the plane wave basis，孟璐 博士，2021年08月25日

Wednesday 25 Aug 2021, 15:00 → 16:30 Asia/Shanghai

报告人：孟璐 博士 (Ruhr-Universität Bochum)
报告时间：2021年08月25日 15：00 - 16：30

摘要：
In this talk, I will discuss an alternative approach to Lüscher's formula for extracting two-body scattering phase shifts from finite volume spectra with no reliance on the partial wave expansion. The approach is an effective-field-theory-based Hamiltonian method in the plane wave basis, which decomposes the corresponding matrix elements of operators in the plane wave basis into irreducible representations of the relevant point groups. The proposed approach allows one to benefit from the knowledge of the long-range interaction and avoids complications from partial wave mixing in a finite volume. I will use spin-singlet channels in the two-nucleon system and pion-pion scattering in the ρ-meson channel in the rest and moving frames to illustrate the method for non-relativistic and relativistic systems, respectively.

报告人简介：
孟璐 博士
2015年本科毕业于山东大学；
2020年博士毕业于北京大学，师从朱世琳老师；
2020年10月至今为Ruhr-Universität Bochum博士后，合作导师是Evgeny Epelbaum教授。
目前的研究兴趣主要为：奇特态，有限体积效应。

HAPOF-30th-Lu-Meng-Two-body-scattering-in-finite-volume.mp4 MengLu_HAPOF.pdf poster30.png