Collection of data
on the most reluctant light scalar mesons

(for references, just click on a data point and then on the corresponding year in the upper line of the
table)


Average sigma pole position

(492 ± 94) -i (261 ± 87) MeV
Average kappa pole position

(805 ± 136) -i (244 ± 107) MeV


from: Eef van Beveren and George Rupp, hep-ph/0201006


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Below, find tabulated the real and imaginary parts of the poles for each of the datapoints.
When you click on the year then you obtain the complete reference.



reference sigma (MeV) kappa (MeV) <<<
1968
 
725 - i 14
return to figures
1968
 
1100 - i 200
return to figures
1969
 
1100 - i 190
return to figures
1970
425 - i 110
 
return to figures
1971
428 - i 265
 
return to figures
1972
480 - i 475
 
return to figures
1973
460 - i 338
665 - i 420
return to figures
1974
 
800 - i 100
return to figures
1982
750 - i 140
800 - i 40
return to figures
1986
470 - i 208
727 - i 263
return to figures
1987
910 - i 350
 
return to figures
1988
 
905 - i 273
return to figures
1989
482 - i 163
 
return to figures
1993
408 - i 342
 
return to figures
1994
420 - i 370
 
return to figures
1994
370 - i 365
 
return to figures
1994
506 - i 247
 
return to figures
1995
387 - i 305
 
return to figures
1996
470 - i 250
 
return to figures
1996
559 - i 185
 
return to figures
1997
469 - i 179
 
return to figures
1997
602 - i 196
875 - i 335
return to figures
1997
440 - i 245
 
return to figures
1997
 
998 - i 79
return to figures
1998
442 - i 227
770 - i 250
return to figures
1998
422 - i 213
 
return to figures
1998
590 - i 355
 
return to figures
1998
 
911 - i 158
return to figures
1999
445 - i 235
 
return to figures
1999
420 - i 317
 
return to figures
1999
518 - i 261
 
return to figures
1999
445 - i 221
779 - i 330
return to figures
2000
498 - i 321
 
return to figures
2000
732 - i 123
 
return to figures
2000
540 - i 193
 
return to figures
2000
 
797 - i 205
return to figures
2000
 
708 - i 305
return to figures
2001
449 - i 241
 
return to figures
2001
478 - i 162
 
return to figures
2001
585 - i 193
905 - i 273
return to figures
2001
526 - i 155
 
return to figures
2001
610 - i 620
 
return to figures
2001
360 - i 530
 
return to figures
2001
470 - i 295
 
return to figures
2001
390 - i 141
 
return to figures
2001
 
714 - i 228
return to figures
2002
483 - i 353
 
return to figures
2002
 
450 - i 480
return to figures
2003
459 - i 233
737 - i 248
return to figures
2003
443 - i 216
 
return to figures
2003
 
688 - i 307
return to figures
2003
 
905 - i 273
return to figures
2004
440 - i 216
754 - i 230
return to figures
2004
541 - i 252
 
return to figures
2005
541 - i 252
750 - i 342
return to figures
2005
441 - i 272
 
return to figures
2005
470 - i 285
 
return to figures
2005
430 - i 325
 
return to figures
2005
600 - i 125
 
return to figures
2005
579 - i 230
 
return to figures
2006
 
841 - i 309
return to figures
2007
484 - i 255
 
return to figures
2008
478 - i 262
 
return to figures
2008
463 - i 259
 
return to figures
2009
411 - i 272
 
return to figures
2009
550 - i 200
 
return to figures
2010
452 - i 260
 
return to figures
2010
453 - i 271
 
return to figures
2010
460 - i 260
 
return to figures
2010
364 - i 356
 
return to figures
2010
486 - i 170
 
return to figures
2010
530 - i 200
 
return to figures
2011
442 - i 272
 
return to figures
2011
457 - i 279
 
return to figures
2011
390 - i 235
 
return to figures
2012
458 - i 261
 
return to figures
2012
706 - i 236
 
return to figures
2013
442 - i 246
 
return to figures
2013
550 - i 232
850 - i 155
return to figures
2013
600 - i 318
 
return to figures
2014
453 - i 297
 
return to figures
2016
449 - i 275
 
return to figures
2016
457 - i 292
 
return to figures
2017
 
680 - i 334
return to figures



Sigma resonance


Notice that some works are NOT related to the SIGMA MESON
but nevertheless have the words meson and sigma in the title.



Kappa resonance


Notice that some works are NOT related to the KAPPA MESON
but nevertheless have the words meson and kappa in the title.


( 425 - i 110) MeV  [Basdevant and Lee, 1970] ( 428 - i 265) MeV  [Basdevant and Zinn-Justin, 1971] ( 480 - i 475) MeV  [Basdevant, Froggatt and Petersen, 1972] ( 460 - i 338) MeV  [Iagolnitzer, Zinn-Justin and Zuber, 1973] ( 750 - i 140) MeV  [Scadron, 1982] ( 470 - i 208) MeV  [Beveren, Rijken, Metzger, Dullemond, Rupp , Ribeiro, 1986] ( 910 - i 350) MeV  [Au, Morgan and Pennington, 1987] ( 482 - i 163) MeV  [DM2 Collaboration, 1989] ( 408 - i 342) MeV  [Zou and Bugg, 1993] ( 420 - i 370) MeV  [Achasov and Shestakov, 1994] ( 370 - i 365) MeV  [Zou and Bugg, 1994] ( 506 - i 247) MeV  [Kamiński, Lesniak and Maillet, 1994] ( 387 - i 305) MeV  [Janssen, Pearce, Holinde and Speth, 1995] ( 470 - i 250) MeV  [Törnqvist and Roos, 1996] ( 559 - i 185) MeV  [Harada, Sannino and Schechter, 1996] ( 469 - i 179) MeV  [Oller and Oset, 1997] ( 602 - i 196) MeV  [S, M and T Ishida, Takamatsu, Tsuru and Takahashi, 1997] ( 440 - i 245) MeV  [Dobado and Peláez, 1997] ( 442 - i 227) MeV  [Oller, Oset and Peláez, 1998] ( 422 - i 213) MeV  [Locher, Markushin and Zheng, 1998] ( 590 - i 355) MeV  [Takamatsu, M. S. and T.Ishida, Tsuru, 1998] ( 445 - i 235) MeV  [Hannah, 1999] ( 420 - i 317) MeV  [Anisovich and Nikonov, 1999] ( 518 - i 261) MeV  [Kamiński, Lesniak and Loiseau, 1999] ( 445 - i 221) MeV  [Oller and Oset, 1999] ( 498 - i 321) MeV  [Xiao and Zheng, 2000] ( 732 - i 123) MeV  [Kamiński, Lesniak and Rybicki, 2000] ( 540 - i 193) MeV  [M, S and T Ishida, Komada, Takamatsu, Tsuru, 2000] ( 449 - i 241) MeV  [Ang, Xiao, Zheng and Song, 2001] ( 478 - i 162) MeV  [E791 collaboration, 2001] ( 585 - i 193) MeV  [Takamatsu for SIGMA collaboration, 2001] ( 526 - i 155) MeV  [Komada, M and S Ishida, 2001] ( 610 - i 620) MeV  [Surovtsev, Krupa and Nagy, 2001] ( 360 - i 530) MeV  [Li, Zou and Li, 2001] ( 470 - i 295) MeV  [Colangelo, Gasser, Leutwyler, 2001] ( 390 - i 141) MeV  [Ning~Wu, BES Collaboration, 2001] ( 483 - i 353) MeV  [Zhiguang Xiao and Hanqing Zheng, 2002] ( 459 - i 233) MeV  [Beisert and Borasoy, 2003] ( 443 - i 216) MeV  [J.A. Oller, 2003] ( 440 - i 216) MeV  [J.R. Peláez, 2004] ( 541 - i 252) MeV  [BES Collaboration, 2004] ( 541 - i 252) MeV  [D.V. Bugg, 2005] ( 441 - i 272) MeV  [Caprini, Colangelo and Leutwyler, 2005] ( 470 - i 285) MeV  [Zhou, Qin, Zhang, Xiao, Zheng, Wu, 2005] ( 430 - i 325) MeV  [V.V. Anisovich, 2005] ( 600 - i 125) MeV  [Morones Ibarra, and Santos Guevara, 2005] ( 579 - i 230) MeV  [Bing An Li, 2005] ( 484 - i 255) MeV  [Ynduráin, García-Martin, Peláez, 2007] ( 478 - i 262) MeV  [García-Martin, Kamiński, Peláez, 2008] ( 463 - i 259) MeV  [I. Caprini, 2008] ( 411 - i 272) MeV  [Donskov, Likhoded, Luchinsky, Samoilenko, 2009] ( 550 - i 200) MeV  [Su Houng Lee, Kenji Morita, Kazuaki Ohnishi, 2009] ( 452 - i 260) MeV  [Mennessier, Narison, Wang, 2010] ( 453 - i 271) MeV  [Peláez, Ríos (fit D), 2010] ( 460 - i 260) MeV  [Llanes-Estrada, Peláez, Ruiz de Elvira, 2010] ( 364 - i 356) MeV  [Hyodo, Jido, Kunihiro (model B), 2010] ( 486 - i 170) MeV  [Menchaca Maciel, Morones Ibarra, 2010] ( 530 - i 200) MeV  [Hua-Xing Chen, Atsushi Hosaka, Hiroshi Toki, Shi-Lin Zhu, 2010] ( 442 - i 272) MeV  [B. Moussallam, 2011] ( 457 - i 279) MeV  [García-Martin, Kamiński, Peláez, Ruiz de Elvira, 2011] ( 390 - i 235) MeV  [Anisovich et. al., 2011] ( 458 - i 261) MeV  [Albaladejo and Oller, 2012] ( 706 - i 236) MeV  [Zi-Wen Fu, σ mass in Chin.Phys.Lett. 28 (2011) 081202, 2012] ( 442 - i 246) MeV  [Zhi-Hui Guoa, Oller, Ruiz de Elvira, 2013] ( 550 - i 232) MeV  [Osipov, Hiller, Blin, 2013] ( 600 - i 318) MeV  [Osipov, Hiller, Blin (c), 2013] ( 453 - i 297) MeV  [Masjuan, Ruiz de Elvira, Sanz-Cillero, 2014] ( 449 - i 275) MeV  [J.R. Peláez, 2016] ( 457 - i 292) MeV  [Caprini, Masjuan, Ruiz de Elvira, Sanz-Cillero, 2016] sigma ( 725 - i  14) MeV  [Roy, 1968] (1100 - i 200) MeV  [Trippe, Chien, Malamud, Mellema, Schlein, Slater, Stork and Ticho, 1968] (1100 - i 190) MeV  [Mckay, Mckisic and Wada, 1969] ( 665 - i 420) MeV  [Iagolnitzer, Zinn-Justin and Zuber, 1973] ( 800 - i 100) MeV  [Chan and Haymaker, 1974] ( 800 - i  40) MeV  [Scadron, 1982] ( 727 - i 263) MeV  [Beveren, Rijken, Metzger, Dullemond, Rupp , Ribeiro, 1986] ( 905 - i 273) MeV  [LASS collaboration, 1988] ( 875 - i 335) MeV  [S, M and T Ishida, Takamatsu, Tsuru and Takahashi, 1997] ( 998 - i  79) MeV  [Anisovich and Sarantsev, 1997] ( 770 - i 250) MeV  [Oller, Oset and Peláez, 1998] ( 911 - i 158) MeV  [Black, Fariborz, Sannino and Schechter, 1998] ( 779 - i 330) MeV  [Oller and Oset, 1999] ( 797 - i 205) MeV  [E791 collaboration, 2000] ( 708 - i 305) MeV  [Jamin, Oller and Pich, 2000] ( 905 - i 273) MeV  [Takamatsu for SIGMA collaboration, 2001] ( 714 - i 228) MeV  [Beveren and Rupp, 2001] ( 450 - i 480) MeV  [Li, Zou and Li, 2002] ( 737 - i 248) MeV  [Beisert and Borasoy, 2003] ( 688 - i 307) MeV  [Zheng, Zhou, Qin, Xiao, Wang and Wu, 2003] ( 905 - i 273) MeV  [T. Komada [BES Collaboration], 2003] ( 754 - i 230) MeV  [J.R. Peláez, 2004] ( 750 - i 342) MeV  [D.V. Bugg, 2005] ( 841 - i 309) MeV  [BES Collaboration, 2006] ( 850 - i 155) MeV  [Osipov, Hiller, Blin, 2013] ( 680 - i 334) MeV  [Peláez, Rodas, 2017] kappa