Kaon-nucleon scattering lengths from kaonic deuterium experiments revisited

被引：46

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

页码：663 / 666

页数：4

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