Σ- p scattering data
This is a list of all Σ- p scattering data that are known to us. Apart from the elastic channel, the Σ- p system couples also to two inelastic hyperon-nucleon channels:
| Σ- p | → | Σ- p |
| → | Σ0 n | |
| → | Λ n |
This list gives the observables per channel, where the tables are made per observable. These measurements are ordered on their momentum range.
| Σ- p → Σ- p | Total elastic cross-section |
|---|---|
momentum range number of SGT (mb) reference
(MeV/c) events
100 - 1900 6 10 + 6 - 4 ST61
125 - 165 25 166 +/- 33 RU67
130 - 140 14 184 +/- 52 EI71
135 - 145 207 +/- 85 DO66
140 - 145 19 152 +/- 38 EI71
145 - 150 30 146 +/- 30 EI71
145 - 155 198 +/- 48 DO66
150 - 155 49 142 +/- 25 EI71
155 - 160 81 164 +/- 32 EI71
155 - 165 189 +/- 32 DO66
160 - 165 107 138 +/- 19 EI71
165 - 170 106 113 +/- 16 EI71
500 - 1500 6 13.2 +/- 4.7 CH70
1500 - 2500 11 13.9 +/- 4.1 CH70
2500 - 4000 4 7.5 +/- 3.8 CH70
|
|
| Differential cross-sections | |
| DO66 | |
based on 130 events in the range 135 - 165 MeV/c
cos(theta) DSG(mb)
-0.4 - -0.2 90 +/- 20
-0.2 - 0.0 105 +/- 20
0.0 - 0.2 80 +/- 20
0.2 - 0.4 120 +/- 20
0.4 - 0.6 115 +/- 25
0.6 - 0.8 200 +/- 110
|
|
| EI71 | |
based on 236 events in the range 150 - 170 MeV/c
cos(theta) DSG(mb)
-0.5 - -0.4 37 +/- 29
-0.4 - -0.2 57 +/- 14
-0.2 - 0.0 77 +/- 14
0.0 - 0.2 75 +/- 13
0.2 - 0.4 72 +/- 12
0.4 - 0.6 91 +/- 16
|
|
| KO00 | |
based on 30 events in the range 400 - 700 MeV/c cos(theta) DSG(mb) -0.5 - -0.2 0.3 +1.8 -0.7 (stat.) +/- 0.1 (syst.) -0.2 - 0.1 3.0 +1.5 -1.1 (stat.) +/- 0.3 (syst.) 0.1 - 0.4 3.4 +1.5 -1.1 (stat.) +/- 0.3 (syst.) 0.4 - 0.7 3.7 +1.9 -1.4 (stat.) +/- 0.3 (syst.) |
|
| Σ- p → Σ0 n | Total cross-section |
momentum range number of SGT (mb) reference
(MeV/c) events
105 - 115 ) 395 +/- 95 EN66
115 - 125 ) 160 +/- 40 EN66
125 - 135 ) 171 160 +/- 30 EN66
135 - 145 ) 125 +/- 25 EN66
145 - 155 ) 110 +/- 20 EN66
155 - 165 ) 115 +/- 15 EN66
|
|
| Σ-p → Λ n | Total cross-section |
momentum range number of SGT (mb) reference
(MeV/c) events
105 - 115 ) 170 +/- 50 EN66
115 - 125 ) 170 +/- 45 EN66
125 - 135 ) 240 140 +/- 30 EN66
135 - 145 ) 160 +/- 30 EN66
145 - 155 ) 140 +/- 20 EN66
155 - 165 ) 115 +/- 15 EN66
|
|
| Differential cross-section | |
| EN66 | |
based on 289 events in the range 100 - 170 MeV/c
cos(theta) DSG(mb)
-1.0 - -0.8 75 +/- 15
-0.8 - -0.6 80 +/- 15
-0.6 - -0.4 65 +/- 15
-0.4 - -0.2 60 +/- 12
-0.2 - 0.0 90 +/- 17
0.0 - 0.2 70 +/- 14
0.2 - 0.4 60 +/- 12
0.4 - 0.6 96 +/- 17
0.6 - 0.8 85 +/- 15
0.8 - 1.0 85 +/- 15
|