THRESHOLD PARAMETERS OF PI-K SCATTERING IN QCD

被引:83
作者
BERNARD, V
KAISER, N
MEISSNER, UG
机构
[1] UNIV LOUIS PASTEUR,DIV PHYS THEOR,F-67037 STRASBOURG,FRANCE
[2] UNIV BERN,INST THEORET PHYS,CH-3012 BERN,SWITZERLAND
来源
PHYSICAL REVIEW D | 1991年 / 43卷 / 09期
关键词
D O I
10.1103/PhysRevD.43.R2757
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We evaluate the low-energy expansion of the pi-K scattering amplitude to one-loop order in chiral perturbation theory. We predict the pertinent scattering lengths and effective-range parameters beyond the current-algebra values. We compare to the existing data and point towards the need of more accurate experiments.
引用
收藏
页码:R2757 / R2760
页数:4
相关论文
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