K- p p system with chiral SU(3) effective interaction

Akinobu Doté; Tetsuo Hyodo; Wolfram Weise

doi:10.1016/j.nuclphysa.2008.02.001

K^- p p system with chiral SU(3) effective interaction

Akinobu Doté, Tetsuo Hyodo, Wolfram Weise

Department of Physics

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171 Scopus citations

Abstract

The K^- p p system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent over(K, ̄) N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the over(K, ̄) N interaction are considered. A weakly bound K^- p p state is found, with a binding energy B = (19 ± 3) MeV substantially smaller than suggested in previous calculations. The decay width Γ (K^- p p → π Σ N) is estimated to range between about 40 and 70 MeV.

Original language	English
Pages (from-to)	197-206
Number of pages	10
Journal	Nuclear Physics, Section A
Volume	804
Issue number	1-4
DOIs	https://doi.org/10.1016/j.nuclphysa.2008.02.001
State	Published - 15 May 2008

Keywords

Chiral SU(3) coupled-channel dynamics
Variational calculation
over(K, ̄)-nuclear system

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10.1016/j.nuclphysa.2008.02.001

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title = "K- p p system with chiral SU(3) effective interaction",

abstract = "The K- p p system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent over(K,{\= }) N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the over(K,{\= }) N interaction are considered. A weakly bound K- p p state is found, with a binding energy B = (19 ± 3) MeV substantially smaller than suggested in previous calculations. The decay width Γ (K- p p → π Σ N) is estimated to range between about 40 and 70 MeV.",

keywords = "Chiral SU(3) coupled-channel dynamics, Variational calculation, over(K,{\= })-nuclear system",

author = "Akinobu Dot{\'e} and Tetsuo Hyodo and Wolfram Weise",

note = "Funding Information: We thank Avraham Gal for fruitful and stimulating discussions during his visit in Munich. One of the authors (A.D.) is grateful to Prof. Akaishi for his advice on constructing our model wave function. This project is partially supported by BMBF, GSI and by the DFG excellence cluster “Origin and Structure of the Universe”. T.H. thanks the Japan Society for the Promotion of Science (JSPS) for financial support. This work is supported in part by the Grant for Scientific Research (Nos. 19853500, 19740163) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. This research is part of Yukawa International Program for Quark–Hadron Sciences.",

year = "2008",

month = may,

day = "15",

doi = "10.1016/j.nuclphysa.2008.02.001",

language = "English",

volume = "804",

pages = "197--206",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

number = "1-4",

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TY - JOUR

T1 - K- p p system with chiral SU(3) effective interaction

AU - Doté, Akinobu

AU - Hyodo, Tetsuo

AU - Weise, Wolfram

N1 - Funding Information: We thank Avraham Gal for fruitful and stimulating discussions during his visit in Munich. One of the authors (A.D.) is grateful to Prof. Akaishi for his advice on constructing our model wave function. This project is partially supported by BMBF, GSI and by the DFG excellence cluster “Origin and Structure of the Universe”. T.H. thanks the Japan Society for the Promotion of Science (JSPS) for financial support. This work is supported in part by the Grant for Scientific Research (Nos. 19853500, 19740163) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. This research is part of Yukawa International Program for Quark–Hadron Sciences.

PY - 2008/5/15

Y1 - 2008/5/15

N2 - The K- p p system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent over(K, ̄) N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the over(K, ̄) N interaction are considered. A weakly bound K- p p state is found, with a binding energy B = (19 ± 3) MeV substantially smaller than suggested in previous calculations. The decay width Γ (K- p p → π Σ N) is estimated to range between about 40 and 70 MeV.

AB - The K- p p system is investigated using a variational approach with realistic two-body interactions: the Argonne v18 NN potential and an energy dependent over(K, ̄) N effective interaction derived from chiral SU(3) coupled-channel dynamics. Uncertainties in subthreshold extrapolations of the over(K, ̄) N interaction are considered. A weakly bound K- p p state is found, with a binding energy B = (19 ± 3) MeV substantially smaller than suggested in previous calculations. The decay width Γ (K- p p → π Σ N) is estimated to range between about 40 and 70 MeV.

KW - Chiral SU(3) coupled-channel dynamics

KW - Variational calculation

KW - over(K, ̄)-nuclear system

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U2 - 10.1016/j.nuclphysa.2008.02.001

DO - 10.1016/j.nuclphysa.2008.02.001

M3 - Article

AN - SCOPUS:42149138432

SN - 0375-9474

VL - 804

SP - 197

EP - 206

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1-4

ER -

K^- p p system with chiral SU(3) effective interaction

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Keywords

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