期刊
PHYSICS LETTERS B
卷 704, 期 5, 页码 663-666出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2011.09.099
关键词
Exotic atoms; Effective field theories; Kaon-deuteron and kaon-nucleon; scattering at low energies; Chiral Lagrangians
资金
- EU [227431]
- DFG [SFB/TR 16]
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.
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