Table 2: Comparison of narrow unflavored meson masses (in MeV) observed in different experiments (see text).The second line indicates the references. Up., CE., CO., Ba., Sp3. and Du. stands respectively for Uppsala, CELSIUS, COSY, Babar, SPES3. and Dubna.

LEAR AGS Up. CE. CO. Ba. Sp3 Du. PDG
[5] [5] [7] [9] [13] [16] [17] [18] [8] [20] [1]
25 25
45 45.7
61 62
85 84 76 80
100
137
181
190 198
215
231
252.5 248.5 255
275 274.7
310 309.6 310
345 343 350 350
375 365 360
410 427 408
475 489
546 555 547.9
587 588 579
635 647
670 674 681 676
700
752 750 762
782.7