I = 3/2 K-PI SCATTERING IN THE NONRELATIVISTIC QUARK POTENTIAL MODEL

被引：37

作者：

BARNES, T

SWANSON, ES

WEINSTEIN, J

机构：

[1] OAK RIDGE NATL LAB,CTR COMPUTATIONALLY INTENS PHYS,OAK RIDGE,TN 37831

[2] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139

[3] UNIV TENNESSEE,DEPT PHYS,KNOXVILLE,TN 37996

[4] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

[5] UNIV MISSISSIPPI,DEPT PHYS & ASTRON,UNIVERSITY,MS 38677

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.46.4868

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study I = 3/2 elastic Kpi scattering to Born order using nonrelativstic quark wave functions in a constituent-exchange model. This channel is ideal for the study of nonresonant meson-meson scattering amplitudes since s-channel resonances do not contribute significantly. Standard quark model parameters yield good agreement with the measured S- and P-wave phase shifts and with partial conservation of axial-vector current calculations of the scattering length. The P-wave phase shift is especially interesting because it is nonzero solely due to SU(3) f-symmetry-breaking effects, and is found to be in good agreement with experiment given conventional values for the strange and nonstrange constituent quark masses.

引用

页码：4868 / 4872

页数：5

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