Hamiltonian effective field theory in elongated or moving finite volume

被引：14

作者：

Li, Yan ^{[1
]}

Wu, Jia-Jun ^{[1
]}

Leinweber, Derek B. ^{[2
]}

Thomas, Anthony W. ^{[2
,3
]}

机构：

[1] Univ Chinese Acad Sci UCAS, Sch Phys Sci, Beijing 100049, Peoples R China

[2] Univ Adelaide, Special Res Ctr Subat Struct Matter CSSM, Dept Phys, Adelaide, SA 5005, Australia

[3] Univ Adelaide, ARC Ctr Excellence Particle Phys Terascale CoEPP, Dept Phys, Adelaide, SA 5005, Australia

来源：

PHYSICAL REVIEW D | 2021年 / 103卷 / 09期

基金：

澳大利亚研究理事会;

关键词：

ENERGY-SPECTRUM; PHASE-SHIFTS; LATTICE; STATES; DEPENDENCE; DECAYS;

D O I：

10.1103/PhysRevD.103.094518

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We extend previous work concerning rest-frame partial-wave mixing in Hamiltonian effective field theory to both elongated and moving systems, where two particles are in a periodic elongated cube or have nonzero total momentum, respectively. We also consider the combination of the two systems when directions of the elongation and the moving momentum are aligned. This extension should also be applicable in any Hamiltonian formalism. As a demonstration, we analyze lattice QCD results for the spectrum of an isospin-2 pi pi scattering system and determine the s, d, and g partial-wave scattering information. The inclusion of lattice simulation results from moving frames significantly improves the uncertainty in the scattering information.

引用

页数：17

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