Improved constraints on chiral SU(3) dynamics from kaonic hydrogen

Yoichi Ikeda; Tetsuo Hyodo; Wolfram Weise

doi:10.1016/j.physletb.2011.10.068

Improved constraints on chiral SU(3) dynamics from kaonic hydrogen

Yoichi Ikeda
, Tetsuo Hyodo
, Wolfram Weise

Department of Physics

Tokyo Institute of Technology
Riken

Research output: Contribution to journal › Article › peer-review

159 Scopus citations

Abstract

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 KN and πσ coupled-channels amplitudes and an improved determination of the K^-p scattering length, including uncertainty estimates.

Original language	English
Pages (from-to)	63-67
Number of pages	5
Journal	Physics Letters B
Volume	706
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2011.10.068
State	Published - 30 Nov 2011

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10.1016/j.physletb.2011.10.068

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title = "Improved constraints on chiral SU(3) dynamics from kaonic hydrogen",

abstract = "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 KN and πσ coupled-channels amplitudes and an improved determination of the K-p scattering length, including uncertainty estimates.",

author = "Yoichi Ikeda and Tetsuo Hyodo and Wolfram Weise",

note = "Funding Information: We thank Avraham Gal for helpful comments and discussions. This work has been performed under the joint research cooperation agreement between RIKEN and Technische Universit{\"a}t M{\"u}nchen. It is partly supported by BMBF , GSI , the DFG Cluster of Excellence “Origin and Structure of the Universe”, and by the Grant-in-Aid for Scientific Research from MEXT and JSPS (Nos. 21840026 and 23-8687 ). T.H. thanks for support from the Global Center of Excellence Program by MEXT , Japan, through the Nanoscience and Quantum Physics Project of the Tokyo Institute of Technology.",

year = "2011",

month = nov,

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doi = "10.1016/j.physletb.2011.10.068",

language = "English",

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T1 - Improved constraints on chiral SU(3) dynamics from kaonic hydrogen

AU - Ikeda, Yoichi

AU - Hyodo, Tetsuo

AU - Weise, Wolfram

N1 - Funding Information: We thank Avraham Gal for helpful comments and discussions. This work has been performed under the joint research cooperation agreement between RIKEN and Technische Universität München. It is partly supported by BMBF , GSI , the DFG Cluster of Excellence “Origin and Structure of the Universe”, and by the Grant-in-Aid for Scientific Research from MEXT and JSPS (Nos. 21840026 and 23-8687 ). T.H. thanks for support from the Global Center of Excellence Program by MEXT , Japan, through the Nanoscience and Quantum Physics Project of the Tokyo Institute of Technology.

PY - 2011/11/30

Y1 - 2011/11/30

N2 - 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 KN and πσ coupled-channels amplitudes and an improved determination of the K-p scattering length, including uncertainty estimates.

AB - 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 KN and πσ coupled-channels amplitudes and an improved determination of the K-p scattering length, including uncertainty estimates.

UR - https://www.scopus.com/pages/publications/81255172911

U2 - 10.1016/j.physletb.2011.10.068

DO - 10.1016/j.physletb.2011.10.068

M3 - Article

AN - SCOPUS:81255172911

SN - 0370-2693

VL - 706

SP - 63

EP - 67

JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

Improved constraints on chiral SU(3) dynamics from kaonic hydrogen

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