Kaon-nucleon scattering lengths from kaonic deuterium experiments revisited

被引：44
作者：
Doering, M. [1 ,2 ]
Meissner, U. -G. [1 ,2 ,3 ,4 ]
机构：
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany
[2] Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[3] Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany
[4] Julich Ctr Hadron Phys, D-52425 Julich, Germany
来源：
PHYSICS LETTERS B | 2011年 / 704卷 / 05期
关键词：
Exotic atoms; Effective field theories; Kaon-deuteron and kaon-nucleon; scattering at low energies; Chiral Lagrangians; HYDROGEN; ATOMS;
D O I：
10.1016/j.physletb.2011.09.099
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyse the impact of the recent measurement of kaonic hydrogen X rays by the SIDDHARTA collaboration on the allowed ranges for the kaon-deuteron scattering length in the framework of non-relativistic effective field theory. Based on data from (K) over barN scattering only, we predict the kaon-deuteron scattering length A(Kd) = (-1.46 + i1.08) fm, with an estimated uncertainty of about 25% in both the real and the imaginary part. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：663 / 666
页数：4
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