Radiative decays of charmonium into light mesons

Ying Jia Gao; Yu Jie Zhang; Kuang Ta Chao

doi:10.1088/0256-307X/23/9/008

Radiative decays of charmonium into light mesons

Ying Jia Gao
, Yu Jie Zhang
, Kuang Ta Chao^*

^*Corresponding author for this work

Peking University

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

24 Scopus citations

Abstract

We apply perturbative QCD to the radiative decays of charmonia J/ψ and χ_cJ into light mesons. We perform a complete numerical calculation for the quark-gluon loop diagrams involved in these processes. The calculated J/ψ decay branching ratios into p-wave mesons f₂(1270) and f₁(1285) fit the data well, while that of f₀(980) (if treated as an s meson) is predicted to be 1.6×10^-4, which implies that f₀(1710) can not be the s or (u+d)/2^1/2 meson. Decays of p-wave charmonia χ_cJρ(ω,φ)γ (J ≤ 0,1,2) are also studied, and the branching ratio of χ _c1ργ is predicted to be 1.4×10^-5, which may be tested by CLEO-c collaboration and BESIII collaboration with future experiments.

Original language	English
Article number	008
Pages (from-to)	2376-2378
Number of pages	3
Journal	Chinese Physics Letters
Volume	23
Issue number	9
DOIs	https://doi.org/10.1088/0256-307X/23/9/008
State	Published - 1 Sep 2006
Externally published	Yes

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title = "Radiative decays of charmonium into light mesons",

abstract = "We apply perturbative QCD to the radiative decays of charmonia J/ψ and χcJ into light mesons. We perform a complete numerical calculation for the quark-gluon loop diagrams involved in these processes. The calculated J/ψ decay branching ratios into p-wave mesons f2(1270) and f1(1285) fit the data well, while that of f0(980) (if treated as an s meson) is predicted to be 1.6×10-4, which implies that f0(1710) can not be the s or (u+d)/21/2 meson. Decays of p-wave charmonia χcJρ(ω,φ)γ (J ≤ 0,1,2) are also studied, and the branching ratio of χ c1ργ is predicted to be 1.4×10-5, which may be tested by CLEO-c collaboration and BESIII collaboration with future experiments.",

author = "Gao, \{Ying Jia\} and Zhang, \{Yu Jie\} and Chao, \{Kuang Ta\}",

year = "2006",

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doi = "10.1088/0256-307X/23/9/008",

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TY - JOUR

T1 - Radiative decays of charmonium into light mesons

AU - Gao, Ying Jia

AU - Zhang, Yu Jie

AU - Chao, Kuang Ta

PY - 2006/9/1

Y1 - 2006/9/1

N2 - We apply perturbative QCD to the radiative decays of charmonia J/ψ and χcJ into light mesons. We perform a complete numerical calculation for the quark-gluon loop diagrams involved in these processes. The calculated J/ψ decay branching ratios into p-wave mesons f2(1270) and f1(1285) fit the data well, while that of f0(980) (if treated as an s meson) is predicted to be 1.6×10-4, which implies that f0(1710) can not be the s or (u+d)/21/2 meson. Decays of p-wave charmonia χcJρ(ω,φ)γ (J ≤ 0,1,2) are also studied, and the branching ratio of χ c1ργ is predicted to be 1.4×10-5, which may be tested by CLEO-c collaboration and BESIII collaboration with future experiments.

AB - We apply perturbative QCD to the radiative decays of charmonia J/ψ and χcJ into light mesons. We perform a complete numerical calculation for the quark-gluon loop diagrams involved in these processes. The calculated J/ψ decay branching ratios into p-wave mesons f2(1270) and f1(1285) fit the data well, while that of f0(980) (if treated as an s meson) is predicted to be 1.6×10-4, which implies that f0(1710) can not be the s or (u+d)/21/2 meson. Decays of p-wave charmonia χcJρ(ω,φ)γ (J ≤ 0,1,2) are also studied, and the branching ratio of χ c1ργ is predicted to be 1.4×10-5, which may be tested by CLEO-c collaboration and BESIII collaboration with future experiments.

UR - https://www.scopus.com/pages/publications/33748443250

U2 - 10.1088/0256-307X/23/9/008

DO - 10.1088/0256-307X/23/9/008

M3 - 文章

AN - SCOPUS:33748443250

SN - 0256-307X

VL - 23

SP - 2376

EP - 2378

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 9

M1 - 008

ER -

Radiative decays of charmonium into light mesons

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