期刊
PHYSICS LETTERS B
卷 706, 期 1, 页码 63-67出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2011.10.068
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资金
- BMBF
- GSI
- DFG Cluster of Excellence
- JSPS [21840026, 23-8687]
- MEXT, Japan
- Tokyo Institute of Technology
- MEXT
- Grants-in-Aid for Scientific Research [11J08687, 21840026] Funding Source: KAKEN
A new improved study of K(-)-proton interactions near threshold is performed using coupled-channels dynamics based on the next-to-leading order chiral SU(3) meson-baryon effective Lagrangian. Accurate constraints are now provided by new high-precision kaonic hydrogen measurements. Together with threshold branching ratios and scattering data, these constraints permit an updated analysis of the complex (K) over barN and pi Sigma coupled-channels amplitudes and an improved determination of the K(-)p scattering length, including uncertainty estimates. (C) 2011 Elsevier B.V. All rights reserved.
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