New study of the isotensor ππ interaction

被引：31

作者：

Wu, FQ

Zou, BS

Li, L

Bugg, DV

机构：

[1] CCAST World Lab, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China

[4] Peking Univ, Beijing 100087, Peoples R China

[5] Queen Mary Univ London, London E1 4NS, England

来源：

NUCLEAR PHYSICS A | 2004年 / 735卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.nuclphysa.2004.01.126

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：

With t-channel rho, f(2)(1270) exchange and the pipi --> rhorho --> pipi box diagram contribution, we reproduce the pipi isotensor S-wave and D-wave scattering phase shifts and inelasticities up to 2.2 GeV quite well in a K-matrix formalism. The t-channel rho exchange provides repulsive negative phase shifts while the t-channel f(2)(1270) gives an attractive force to increase the phase shifts for pipi scattering above 1 GeV, and the coupled-channel box diagram causes the inelasticities. The implication to the isoscalar pipi S-wave interaction is discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：111 / 124

页数：14