Chiral symmetry, scalar di-quark and pentaquark

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

doi:10.1063/1.1920977

Chiral symmetry, scalar di-quark and pentaquark

H. Toki, Emiko 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
Volume	756
DOIs	https://doi.org/10.1063/1.1920977
Publication status	Published - Apr 14 2005
Externally published	Yes
Event	6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004 - Villasimius, Italy Duration: Sept 21 2004 → Sept 25 2004

Other

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

All Science Journal Classification (ASJC) codes

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. vol. 756, pp. 312-314, 6th Conference on Quark Confinement and the Hadron Spectrum - QCHS 2004, Villasimius, Italy, 9/21/04. 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.",

author = "H. Toki and Emiko Hiyama and M. Kamimura and A. Hosaka",

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AU - Toki, H.

AU - Hiyama, Emiko

AU - Kamimura, M.

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.

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BT - QUARK CONFINEMENT AND THE HADRON SPECTRUM VI

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Chiral symmetry, scalar di-quark and pentaquark

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