New look at scalar mesons

被引：325

作者：

Maiani, L ^{[1
]}

Piccinini, F

Polosa, AD

Riquer, V

机构：

[1] Univ Roma La Sapienza, Rome, Italy

[2] Ist Nazl Fis Nucl, Rome, Italy

[3] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

[4] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[5] Ctr Studi & Ric E Fermi, I-00184 Rome, Italy

[6] CERN, Theory Dept, CH-1211 Geneva, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.93.212002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Light scalar mesons are found to fit rather well a diquark-antidiquark description. The resulting nonet obeys mass formulas which respect, to a good extent, the Okubo-Zweig-Iizuka (OZI) rule. OZI allowed strong decays are reasonably reproduced by a single amplitude describing the switch of a q (q) over bar pair, which transforms the state into two colorless pseudoscalar mesons. Predicted heavy states with one or more quarks replaced by charm or beauty are briefly described; they should give rise to narrow states with exotic quantum numbers.

引用

页数：4

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