POSSIBLE LARGE DEUTERONLIKE MESON-MESON STATES BOUND BY PIONS

被引：226

作者：

TORNQVIST, NA

机构：

[1] Research Institute for High Energy Physics, University of Helsinki

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.67.556

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the analogy of the deuteron, spin-flavor symmetry, statistics, etc., it is argued that the one-pion exchange potential is likely to bind a few states composed of two ground-state mesons. The best S-wave candidates have masses, quantum numbers, and decay widths similar to those observed for the experimentally best established non-qqBAR candidates: theta/f0(1720), G/f0(1590), A(X)/f2(1520), and E/f1(1420). Possible P-wave states arc the eta(1410) and eta(1490). Also the threshold enhancements seen in J/psi --> gamma-rho-rho, gamma-omega-omega, gamma-K*KBAR* and in gamma-gamma --> rho-rho are likely to be involved.

引用

页码：556 / 559

页数：4

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