Novel analysis of the decays ψ′ → hcπ0 and η′c → χc0π0

被引：46

作者：

Guo, Feng-Kun ^{[1
,2
]}

Hanhart, Christoph ^{[1
,2
,3
]}

Li, Gang ^{[4
,5
]}

Meissner, Ulf-G. ^{[1
,2
,3
,6
,7
]}

Zhao, Qiang ^{[4
,8
]}

机构：

[1] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[5] Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China

[6] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[7] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany

[8] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 03期

基金：

中国国家自然科学基金;

关键词：

HADRONIC TRANSITIONS; STATES; SYMMETRY;

D O I：

10.1103/PhysRevD.82.034025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that in the transitions psi' -> h(c)pi(0) and eta '(c) -> chi(c0)pi(0) the contributions from charmed-meson loops are highly suppressed, in contrast to various other charmonium decays. We calculate the width of the psi' -> h(c)pi(0), which agrees with the recent BES-III data, and predict the width of the eta '(c) -> chi(c0)pi(0), Gamma(eta '(c) -> chi(c0)pi(0)) = 1.5 +/- 0.4 keV. A confirmation of this prediction would also provide additional support for a recent analysis of psi' -> J/psi pi(0)(eta), where loops are claimed to play a prominent role.

引用

页数：7

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