$\ensuremath{\eta}(1405)$ in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of $\ensuremath{\eta}$ and $\ensuremath{\eta}\ensuremath{'}$

$η (1405)$ in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of $η$ and $η'$

Thomas Gutsche, Valery E. Lyubovitskij, and Malte C. Tichy

Phys. Rev. D 80, 014014 – Published 23 July 2009

Abstract

The supernumerous $η (1405)$ is considered a strong candidate for the pseudoscalar glueball. In a phenomenological chiral approach, we consider a mixing scenario of bare pseudoscalar $n \bar{n}$ and $s \bar{s}$ quarkonia with the glueball. We study the decay properties and point out the peculiarities of this scenario in order to support the possible identification of the $J^{PC} = 0^{- +}$ glueball.

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Received 23 April 2009

DOI:https://doi.org/10.1103/PhysRevD.80.014014

Authors & Affiliations

Thomas Gutsche, Valery E. Lyubovitskij^*, and Malte C. Tichy

Institut für Theoretische Physik, Universität Tübingen, Kepler Center for Astro and Particle Physics, Auf der Morgenstelle 14, D-72076 Tübingen, Germany

^*On leave of absence from Department of Physics, Tomsk State University, 634050 Tomsk, Russia.

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Vol. 80, Iss. 1 — 1 July 2009

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Physical Review D

covering particles, fields, gravitation, and cosmology

$η (1405)$ in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of $η$ and $η'$

Thomas Gutsche, Valery E. Lyubovitskij, and Malte C. Tichy

Phys. Rev. D 80, 014014 – Published 23 July 2009

Abstract

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Physical Review D

covering particles, fields, gravitation, and cosmology

η(1405) in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of η and η′

Thomas Gutsche, Valery E. Lyubovitskij, and Malte C. Tichy

Phys. Rev. D 80, 014014 – Published 23 July 2009

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$η (1405)$ in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of $η$ and $η'$