On the mixing amplitude of and vector glueball O

Chan, Chuan-Tsung; Hou, W.-S.

doi:10.1016/s0375-9474(00)00290-6

Cited by 8 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed an amplitude analysis made for the two-body decays of J/ψ to VP [5]has shown that nothing anomalous is found in the magnitudes of the three-gluon and one-photon amplitudes. Hence those arguments presupposing the J/ψ as the origin of the puzzle anomaly should be disregarded, including another model presented at Hadron'99 [6].…”

mentioning

confidence: 99%

Aspects of Charmonium Physics

Tuan¹

2002

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. I review possible resolution of the J/ψ(ψ ′ ) → ρ − π puzzle based on two inputs: the relative phase between the one-photon and the gluonic decay amplitudes, and a possible hadronic excess in the inclusive nonelectromagnetic decay rate of ψ ′ . The status of a universal large phase here is examined for its meaning and implications (including those for B-physics). Since the future of tau/charm facility(s) are again under consideration together with a future anti-proton facility at GSI, I propose to extend my review to include a broader discussion of charmonium physics. Outstanding questions like the status of the 1 P 1 state of charmonium, measuring D 0 −D 0 mixing and relative strong phases, status of molecular P(S) -wave charmonia will also be discussed amongst others.

show abstract

mentioning

confidence: 99%

Aspects of Charmonium Physics

Tuan¹

2002

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

Molecular components in J/ψ and ρ-π puzzle*

Guo 郭,

Chen 陈,

Li 李

et al. 2024

Chinese Phys. C

View full text Add to dashboard Cite

Motivated by the large branching fractions of $J/\psi \to f_0 (1710) \omega/f_0(1710) \phi$ and the light exotic candidates, we find that there may exist molecular states composed of $f_0(1710) \omega$ and $f_0 (1710) \phi$, which correspond to $X(2440)$ and $X(2680)$ observed in a few decades before. The branching fraction of $X(2440)$ and $X(2680)$ to various $PV$ channels and $KK\omega(\phi)$ channels are estimated in the molecular scenario. In addition, the large branching fractions of $J/\psi \to f_0 (1710) \omega/f_0(1710) \phi$ indicate the sizable molecular components in the $J/\psi$ state. Thus, we consider the $J/\psi$ as the supperposition of $c\bar{c}(1S)$, $f_0(1710) \omega$ and $f_0 (1710) \phi$ molecular states, and these molecular components have significant impact on the light hadron decays of $J/\psi$, which may shield light on the long standing $\rho-\pi$ puzzle. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

show abstract

Symmetry analysis involving meson mixing for charmonium decay

2024

Phys. Rev. D

View full text Add to dashboard Cite

For charmonium’s decaying to the final states involving merely light quarks, in light of SU(3) flavor symmetry, the effective interaction Hamiltonian in tensor form is obtained by virtue of group representation theory. The strong and electromagnetic breaking effects are treated as a spurion octet so that the flavor singlet principle can be utilized as the criterion to determine the form of effective Hamiltonian for all charmonium two body decays. Moreover, a synthetic nonet is introduced to include both octet and singlet representations for meson description, and resorting to the mixing angle, the pure octet and singlet states are combined into the observable pseudoscalar and vector particles, so that the empirically effective Hamiltonian can be obtained in a concise way. As an application, by virtue of this scenario the relative phase between the strong and electromagnetic amplitudes is studied for vector-pseudoscalar meson final state. In data analysis of samples taken in an e+e− collider, the details of experimental effects, such as energy spread and initial state radiative correction, are taken into consideration in order to make full use of experimental information and acquire accurate and delicate results. Published by the American Physical Society 2024

show abstract

On the mixing amplitude of and vector glueball O

Cited by 8 publications

References 8 publications

Aspects of Charmonium Physics

Aspects of Charmonium Physics

Molecular components in J/ψ and ρ-π puzzle*

Symmetry analysis involving meson mixing for charmonium decay

Contact Info

Product

Resources

About