Chiral symmetry, scalar di-quark and pentaquark

H. Toki; E. Hiyama; M. Kamimura; A. Hosaka

doi:10.1063/1.1920977

Chiral symmetry, scalar di-quark and pentaquark

H. Toki, E. Hiyama, M. Kamimura, A. Hosaka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We model the chiral symmetry feature in terms of a simplest possible non-relativistic quark model for the use of the full many body numerical method developed for nuclear few body problems. We present the numerical results on the properties of the flavor octet baryons, in particular the non-leptonic weak decay of baryons. We apply the model Hamiltonian to the structure of pentaquark system by solving the 5 body system. We find that the 1/2⁺ state appears clearly as the lowest state and have extremely a small width. We see that 1/2^- state does not have a clearly distinguished state and is buried in the continuum above the K⁺ neutron threshold.

Original language	English
Title of host publication	QUARK CONFINEMENT AND THE HADRON SPECTRUM VI
Subtitle of host publication	6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004
Pages	312-314
Number of pages	3
DOIs	https://doi.org/10.1063/1.1920977
Publication status	Published - 2005 Apr 14
Externally published	Yes
Event	6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004 - Villasimius, Italy Duration: 2004 Sep 21 → 2004 Sep 25

Publication series

Name	AIP Conference Proceedings
Volume	756
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004
Country/Territory	Italy
City	Villasimius
Period	04/9/21 → 04/9/25

Keywords

Chiral symmetry
Pentaquark
Scalar diquark

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.1920977

Cite this

Toki, H, Hiyama, E, Kamimura, M & Hosaka, A 2005, Chiral symmetry, scalar di-quark and pentaquark. in QUARK CONFINEMENT AND THE HADRON SPECTRUM VI: 6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004. AIP Conference Proceedings, vol. 756, pp. 312-314, 6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004, Villasimius, Italy, 04/9/21. https://doi.org/10.1063/1.1920977

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abstract = "We model the chiral symmetry feature in terms of a simplest possible non-relativistic quark model for the use of the full many body numerical method developed for nuclear few body problems. We present the numerical results on the properties of the flavor octet baryons, in particular the non-leptonic weak decay of baryons. We apply the model Hamiltonian to the structure of pentaquark system by solving the 5 body system. We find that the 1/2+ state appears clearly as the lowest state and have extremely a small width. We see that 1/2- state does not have a clearly distinguished state and is buried in the continuum above the K+ neutron threshold.",

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AU - Toki, H.

AU - Hiyama, E.

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AU - Hosaka, A.

PY - 2005/4/14

Y1 - 2005/4/14

N2 - We model the chiral symmetry feature in terms of a simplest possible non-relativistic quark model for the use of the full many body numerical method developed for nuclear few body problems. We present the numerical results on the properties of the flavor octet baryons, in particular the non-leptonic weak decay of baryons. We apply the model Hamiltonian to the structure of pentaquark system by solving the 5 body system. We find that the 1/2+ state appears clearly as the lowest state and have extremely a small width. We see that 1/2- state does not have a clearly distinguished state and is buried in the continuum above the K+ neutron threshold.

AB - We model the chiral symmetry feature in terms of a simplest possible non-relativistic quark model for the use of the full many body numerical method developed for nuclear few body problems. We present the numerical results on the properties of the flavor octet baryons, in particular the non-leptonic weak decay of baryons. We apply the model Hamiltonian to the structure of pentaquark system by solving the 5 body system. We find that the 1/2+ state appears clearly as the lowest state and have extremely a small width. We see that 1/2- state does not have a clearly distinguished state and is buried in the continuum above the K+ neutron threshold.

KW - Chiral symmetry

KW - Pentaquark

KW - Scalar diquark

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BT - QUARK CONFINEMENT AND THE HADRON SPECTRUM VI

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Chiral symmetry, scalar di-quark and pentaquark

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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