The numerical calculation of quantum field theory in hadron spectroscopy

被引：1

作者：

Sun, M. Z. ^{[1
]}

Cao, Y. ^{[1
]}

Hu, B. T. ^{[1
]}

Zhang, Y. ^{[1
]}

Chen, X. R. ^{[2
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2014年 / 23卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Quantum field theory; QFT plus plus package; numerical calculations; hadron spectroscopy;

D O I：

10.1142/S0218301314600052

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this paper, we introduced QFT++, a C++ toolkit for numerical calculation of quantum field theory. By comparing the result from QFT++ with the traditional calculation result of the Feynman amplitude p (p) over bar -> m Phi, the validity of QFT++ was demonstrated. Furthermore, the toolkit was optimized in a fixed convention, in which a significant improvement of performance was found. The optimized version will be used in the partial wave analysis (PWA) of hadron spectroscopy, where the computation speed is a crucial bottleneck in most cases.

引用

页数：8

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