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.
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页数：4
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