Flavor-singlet axial charge of the nucleon and anomalous Ward identity

Keh Fei Liu

doi:10.1016/0370-2693(92)90288-F

Flavor-singlet axial charge of the nucleon and anomalous Ward identity

Keh Fei Liu

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

11 Scopus citations

Abstract

A Goldberger-Treiman relation is derived for the flavor singlet g⁰_A using the same approach which resolves the U(1) problem. We show that there are two components which are identified as the valence quark and vacuum-polarization contributions. They also reflect the two different ways that an η' couples to the nucleon. It is shown that the relation has the expected chiral, non-relativistic, and large N_c limits.

Original language	English
Pages (from-to)	141-147
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	281
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(92)90288-F
State	Published - May 7 1992

Bibliographical note

Funding Information:
This work is partially supported by the US DOE grant No. DE-FG05-84ER40154 and the Alexander von Humboldt Foundation of Germany. The author would like to acknowledge the hospitality he received at HLRZ, Jiilich, where this research was carried out. He would also like to thank T. Hatsuda, Y.G. Liang, M. Rho, G. Schierholz, and especially G. Veneziano and J.C. Vink for stimulating discussions.

Funding

This work is partially supported by the US DOE grant No. DE-FG05-84ER40154 and the Alexander von Humboldt Foundation of Germany. The author would like to acknowledge the hospitality he received at HLRZ, Jiilich, where this research was carried out. He would also like to thank T. Hatsuda, Y.G. Liang, M. Rho, G. Schierholz, and especially G. Veneziano and J.C. Vink for stimulating discussions.

Funders	Funder number
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(92)90288-F

Cite this

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abstract = "A Goldberger-Treiman relation is derived for the flavor singlet g0A using the same approach which resolves the U(1) problem. We show that there are two components which are identified as the valence quark and vacuum-polarization contributions. They also reflect the two different ways that an η' couples to the nucleon. It is shown that the relation has the expected chiral, non-relativistic, and large Nc limits.",

author = "Liu, {Keh Fei}",

note = "Funding Information: This work is partially supported by the US DOE grant No. DE-FG05-84ER40154 and the Alexander von Humboldt Foundation of Germany. The author would like to acknowledge the hospitality he received at HLRZ, Jiilich, where this research was carried out. He would also like to thank T. Hatsuda, Y.G. Liang, M. Rho, G. Schierholz, and especially G. Veneziano and J.C. Vink for stimulating discussions.",

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AB - A Goldberger-Treiman relation is derived for the flavor singlet g0A using the same approach which resolves the U(1) problem. We show that there are two components which are identified as the valence quark and vacuum-polarization contributions. They also reflect the two different ways that an η' couples to the nucleon. It is shown that the relation has the expected chiral, non-relativistic, and large Nc limits.

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Flavor-singlet axial charge of the nucleon and anomalous Ward identity

Abstract

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