WHEN CAN HADRONIC LOOPS SCUTTLE THE OKUBO-ZWEIG-IIZUKA RULE

被引：114

作者：

GEIGER, P

ISGUR, N

机构：

[1] UNIV TORONTO,DEPT PHYS,TORONTO M5S 1A7,ONTARIO,CANADA

[2] CEBAF,NEWPORT NEWS,VA 23606

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.47.5050

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have improved and extended our previous calculations of hadronic loop contributions to meson propagators. As we anticipated from our study of the vector mesons, systematic cancellations among the loops, which are crucial for the preservation of the Okubo-Zweig-Iizuka rule, continue to occur in all the low-lying nonets except 0++. The failure of the cancellation mechanism in this sector has striking repercussions for the masses and couplings of the scalar mesons. We also present calculations of loop-induced SU(3) violation in the low-lying nonets.

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页码：5050 / 5059

页数：10

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