Meson production reactions measured at COSY-11


ReactionExcess
energy
measured
total X-section
Comment
pp->ppK+K- -3.0 MeV----background measurements
-2.0 MeV
1.0 MeV analysis in progress
2.0 MeV
3.0 MeV< 160 pbPhys.Lett. B 515 (2001) 276-282; Abstract (CL=95%)
4.2 MeV< 261 pbPhD thesis of T.Lister (CL=95%)
6.1 MeV0.49 nb ± 0.39 nbPhD thesis of M.Wolke
< 1.09 nbPhD thesis of T.Lister (CL=95%)
8.0 MeV< 682 pb
9.9 MeV< 1.38 nb
10.0 MeV analysis in progress
17.0 MeV1.80 nb ± 0.58 nbPhys.Lett. B 515 (2001) 276-282; Abstract
27.8 MeV< 2.97 nbPhD thesis of T.Lister (CL=95%)
28.0 MeV analysis in progress
56.1 MeV< 401 nbPhD thesis of T.Lister (CL=95%)
pp->pK+Lambda-2.0 MeV----background measurement
2.0 MeV8.2 nb ± 1.8 nbPhys.Lett. B 388 (1996) 859; Abstract
0.68 MeV2.1 nb ± 0.2 nbEur.Phys.Jou. A 2 (1998) 1, 99-104; Abstract
Phys.Lett. B 420 (1998) 211-216; Abstract
PhD thesis of G.Schepers
systematical error ± 14%
1.68 MeV13.4 nb ± 0.7 nb
2.68 MeV36.6 nb ± 2.6 nb
3.68 MeV63.0 nb ± 3.1 nb
4.68 MeV92.2 nb ± 6.5 nb
5.68 MeV135 nb ± 11 nb
6.68 MeV164 nb ± 10 nb
8.6 MeV344 nb ± 41 nbPhys.Rev.Lett. 83 (1999) 682-685; Abstract
10.9 MeV385 nb ± 27 nb
13.2 MeV505 nb ± 33 nb
13.9 MeV630 nb ± 79 nbPHD thesis of P.Kowina
15.9 MeV727 nb ± 57 nb
20.2 MeV1011 nb ± 99 nb
30.1 MeV1366 nb ± 247 nb
39.7 MeV2118 nb ± 266 nb
59.3 MeV3838 nb ± 624 nb
75.8-89.9
MeV
 (75.8, 79.8, 81.8, 83.8, 84.5, 87.5, 89.9)
analysis in progress
pp->pK+Sigma0-2.0 MeV----background measurements
-1.0 MeV
2.8 MeV1.6 nb ± 0.5 nbPhys.Rev.Lett. 83 (1999) 682-685; Abstract
5.5 MeV5.7 nb ± 0.8 nb
7.5 MeV8.6 nb ± 2.1 nb
8.0 MeV9.7 nb ± 2.0 nb
10.3 MeV12.8 nb ± 2.4 nb
11.1 MeV17.5 nb ± 3.8 nb
13.0 MeV20.1 nb ± 3.0 nb
13.8 MeV34.9 nb ± 6.5 nbPHD thesis of P.Kowina
15.9 MeV46.8 nb ± 6.4 nb
20.3 MeV78 nb ± 14 nb
29.9 MeV125 nb ± 32 nb
39.7 MeV196 nb ± 33 nb
59.1 MeV482 nb ± 144 nb
pp->pK+Sigma(1385)52.5 MeV< 244 nbPhD thesis of T.Lister (CL=95%)
56.2 MeV< 776 nb
58.1 MeV< 733 nb
76.0 MeV< 4.61 µb
104.3 MeV< 57.6 µb
pp->pK+Lambda(1405)29.2 MeV< 134 nbPhD thesis of T.Lister (CL=95%)
32.9 MeV< 256 nb
34.8 MeV< 371 nb
52.7 MeV< 417 nb
81.0 MeV< 1.62 µb
pd->dK+K+Xi-14 MeV< 1 nbAnn.Rep.1997, Jül-3505, p.48
pp->pp pi+pi--4.0 MeV----background measurement
1.2 MeV< 29.4 nbPhD thesis of A.Khoukaz
no events seen
1.8 MeV< 9.9 nb
pp->pp eta-2.0 MeV----background measurement
3.8 MeV770 nb ± 140 nbAnn.Rep.1995, Jül-3200, p.39
0.54 MeV0.022 µb ± 0.004 µbPhys.Lett. B 474 (2000) 182-187; Abstract
PhD thesis of P.Wuestner
measured during beam ramping
excess energy: -3 MeV -> +7 MeV
1.24 MeV0.121 µb ± 0.012 µb
1.94 MeV0.27 µb ± 0.02 µb
2.64 MeV0.37 µb ± 0.03 µb
3.34 MeV0.49 µb ± 0.04 µb
4.04 MeV0.70 µb ± 0.05 µb
4.73 MeV0.68 µb ± 0.06 µb
5.43 MeV0.89 µb ± 0.07 µb
pp->pp eta'-3.0 MeV----background measurements
-2.3 MeV
1.5 MeV2.5 nb ± 0.5 nbPhys.Rev.Lett. 80 (1998) 3202; Abstract
PhD thesis of P.Moskal
measured during beam ramping
excess energy: -3 MeV -> +5 MeV
1.7 MeV2.9 nb ± 1.1 nb
2.9 MeV12.7 nb ± 3.2 nb
4.1 MeV25.2 nb ± 3.6 nb
1.53 MeV5.0 nb ± 0.68 nbPhys.Lett. B 474 (2000) 416-422; Abstract
systematicical error of X-section: 15 %
systematicical error of energy: 0.44 MeV
2.11 MeV6.9 nb ± 1.4 nb
5.80 MeV27.9 nb ± 3.3 nb
7.57 MeV43.5 nb ± 4.3 nb
9.42 MeV46.8 nb ± 5.6 nb
10.98 MeV67.4 nb ± 8.2 nb
14.21 MeV82. nb ± 13. nb
23.64 MeV140. nb ± 19. nb
pp->d'pi->pp pi+pi--10 MeV----background measurement
1.8 MeV Diploma thesis of R.Großmann, Tübingen
3 events found
4.6 MeV
pp->pp omega24.0 MeV analysis in progress
50.0 MeV
100.0 MeV
pp->pp Phi24.0 MeV analysis in progress
pp->d pi+  analysis in progress at different energies

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Last updated: 21-March-2003 by T.Sefzick