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Measurement E57M2

Experiment: Differential Photoproduction Cross Sections of the Λ(1520)
Year: 2013

Measurement comment:

The first W bin for the L(1520) is only 30 MeV wide and centered at 2.035 GeV, rather than 100 MeV wide, since the wider bin size staddles the threshold. The first bin has an estimated normalization systematic of 36% on top of the 11.6% for the other bins.

Experiment comment:

All known corrections were applied to the yield extraction, normalization, and acceptance calculations in these data. The given error bars are essentially statistical but include the fit uncertainties assiciated with background subtraction. The overall systematic uncertainty in these results was estimated to be 11.6%.
Spokesperson: R. A. Schumacher
Reaction: γp → K+ Λ(1520)
Polarization: none
Quantity: dσ/dcos(θK+)
W: 2.0 — 2.8 GeV
Publication:
K. Moriya, R. A. Schumacher et al. (CLAS Collaboration) Differential Photoproduction Cross Sections of the Σ0(1385), Λ(1405), and Λ(1520) // arXiv:1305.6776v2 [nucl-ex]

Slice: W = GeV

Measurement data
W, [GeV] cos(θK+) dσ/dcos(θK+), [μb] uncertainty
2.035 -0.85 0.0 0.0
2.035 -0.75 0.3818 0.1687
2.035 -0.65 0.0736 0.0253
2.035 -0.55 0.1091 0.0251
2.035 -0.45 0.1303 0.035
2.035 -0.35 0.1177 0.0282
2.035 -0.25 0.0553 0.0127
2.035 -0.15 0.0786 0.0127
2.035 -0.05 0.1016 0.0148
2.035 0.05 0.0802 0.012
2.035 0.15 0.0834 0.0121
2.035 0.25 0.1078 0.014
2.035 0.35 0.1296 0.0164
2.035 0.45 0.1583 0.018
2.035 0.55 0.1054 0.0145
2.035 0.65 0.1694 0.0209
2.035 0.75 0.1316 0.0299
2.035 0.84 0.0 0.0
2.1 -0.85 0.0 0.0
2.1 -0.75 0.1347 0.0536
2.1 -0.65 0.115 0.0168
2.1 -0.55 0.1086 0.015
2.1 -0.45 0.0982 0.0139
2.1 -0.35 0.1287 0.0418
2.1 -0.25 0.1782 0.0552
2.1 -0.15 0.1353 0.0274
2.1 -0.05 0.1264 0.0193
2.1 0.05 0.1742 0.025
2.1 0.15 0.1934 0.0213
2.1 0.25 0.3059 0.0286
2.1 0.35 0.3563 0.0293
2.1 0.45 0.376 0.0283
2.1 0.55 0.4561 0.0313
2.1 0.65 0.4245 0.0248
2.1 0.75 0.6135 0.0396
2.1 0.84 0.6366 0.0652
2.2 -0.85 0.0 0.0
2.2 -0.75 0.2219 0.0236
2.2 -0.65 0.184 0.0162
2.2 -0.55 0.1402 0.0139
2.2 -0.45 0.1566 0.0447
2.2 -0.35 0.1707 0.0433
2.2 -0.25 0.0894 0.0264
2.2 -0.15 0.2019 0.041
2.2 -0.05 0.2077 0.0263
2.2 0.05 0.2698 0.0257
2.2 0.15 0.2544 0.0227
2.2 0.25 0.3722 0.0256
2.2 0.35 0.3629 0.0223
2.2 0.45 0.511 0.0256
2.2 0.55 0.5309 0.0245
2.2 0.65 0.6959 0.0308
2.2 0.75 0.7051 0.035
2.2 0.84 0.6578 0.0532
2.3 -0.85 0.2232 0.0584
2.3 -0.75 0.1442 0.0169
2.3 -0.65 0.131 0.0148
2.3 -0.55 0.1458 0.0123
2.3 -0.45 0.1244 0.0112
2.3 -0.35 0.1252 0.0281
2.3 -0.25 0.1405 0.0212
2.3 -0.15 0.1818 0.0283
2.3 -0.05 0.1836 0.0192
2.3 0.05 0.2169 0.0195
2.3 0.15 0.2596 0.0197
2.3 0.25 0.308 0.0198
2.3 0.35 0.3974 0.0197
2.3 0.45 0.4039 0.0194
2.3 0.55 0.518 0.0229
2.3 0.65 0.5526 0.024
2.3 0.75 0.5873 0.0288
2.3 0.84 0.6168 0.0374
2.4 -0.85 0.1033 0.0241
2.4 -0.75 0.083 0.0144
2.4 -0.65 0.1001 0.0122
2.4 -0.55 0.1486 0.061
2.4 -0.45 0.1126 0.0429
2.4 -0.35 0.1135 0.0288
2.4 -0.25 0.1002 0.0208
2.4 -0.15 0.1194 0.0263
2.4 -0.05 0.1538 0.0177
2.4 0.05 0.1674 0.0161
2.4 0.15 0.1796 0.017
2.4 0.25 0.2611 0.0164
2.4 0.35 0.3293 0.0174
2.4 0.45 0.3724 0.0178
2.4 0.55 0.4989 0.0225
2.4 0.65 0.5422 0.0256
2.4 0.75 0.6443 0.03
2.4 0.84 0.6536 0.0389
2.5 -0.85 0.0639 0.0227
2.5 -0.75 0.0685 0.0126
2.5 -0.65 0.0656 0.0099
2.5 -0.55 0.0736 0.0088
2.5 -0.45 0.0625 0.0072
2.5 -0.35 0.0833 0.0282
2.5 -0.25 0.0516 0.0068
2.5 -0.15 0.0719 0.0196
2.5 -0.05 0.0707 0.0101
2.5 0.05 0.134 0.0132
2.5 0.15 0.1291 0.0108
2.5 0.25 0.2324 0.013
2.5 0.35 0.2539 0.0124
2.5 0.45 0.3256 0.0145
2.5 0.55 0.3979 0.0177
2.5 0.65 0.4366 0.0193
2.5 0.75 0.5848 0.0255
2.5 0.84 0.5648 0.0314
2.6 -0.85 0.0573 0.015
2.6 -0.75 0.0521 0.0109
2.6 -0.65 0.0461 0.0078
2.6 -0.55 0.0428 0.0069
2.6 -0.45 0.027 0.0056
2.6 -0.35 0.0214 0.0063
2.6 -0.25 0.0306 0.0051
2.6 -0.15 0.0276 0.0047
2.6 -0.05 0.0437 0.009
2.6 0.05 0.0539 0.007
2.6 0.15 0.0867 0.008
2.6 0.25 0.1252 0.008
2.6 0.35 0.1944 0.01
2.6 0.45 0.2559 0.0115
2.6 0.55 0.3306 0.0159
2.6 0.65 0.3906 0.0178
2.6 0.75 0.5053 0.0214
2.6 0.84 0.6184 0.0341
2.7 -0.85 0.0362 0.0213
2.7 -0.75 0.0551 0.012
2.7 -0.65 0.0329 0.0066
2.7 -0.55 0.0243 0.0061
2.7 -0.45 0.0293 0.0054
2.7 -0.35 0.0214 0.0046
2.7 -0.25 0.0248 0.0054
2.7 -0.15 0.0181 0.0036
2.7 -0.05 0.0281 0.0035
2.7 0.05 0.0498 0.0093
2.7 0.15 0.0496 0.0061
2.7 0.25 0.0908 0.0078
2.7 0.35 0.1365 0.0092
2.7 0.45 0.1467 0.0098
2.7 0.55 0.2389 0.0135
2.7 0.65 0.3309 0.0168
2.7 0.75 0.433 0.0202
2.7 0.83 0.4765 0.0317
2.8 -0.85 0.0 0.0
2.8 -0.75 0.04 0.0163
2.8 -0.65 0.032 0.0071
2.8 -0.55 0.0143 0.0049
2.8 -0.45 0.0163 0.0046
2.8 -0.35 0.0177 0.0039
2.8 -0.25 0.0137 0.0058
2.8 -0.15 0.0221 0.0036
2.8 -0.05 0.0264 0.0033
2.8 0.05 0.0348 0.0072
2.8 0.15 0.0441 0.0036
2.8 0.25 0.0429 0.0057
2.8 0.35 0.0786 0.0076
2.8 0.45 0.1259 0.0098
2.8 0.55 0.169 0.0113
2.8 0.65 0.2986 0.0153
2.8 0.75 0.4212 0.0209
2.8 0.83 0.4534 0.0323
Created in SINP MSU, CLAS Collaboration