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Measurement E68M1

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Experiment: E91-008, 2005

Spokespersons: B. Ritchie

Publication:

Quantity measured: dσ/dΩ, microbarns/sr
Differential cross section.
Beam: γ, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: η′ p, polarization: none

W : 1.935 — 2.249 GeV
xb : 0

Select data slice:
W = GeV
Observable quantity measured (Y axis): dσ/dΩ, microbarns/sr
Plot measurement data

Parameter (X axis): cos(θ), dimensionless

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Measured data:

W,
GeV 		cos(θ),
dimensionless 		dσ/dΩ,
microbarns/sr 		Data errors,
microbarns/sr
1.935 0.5 0.05975 0.00734
1.935 0.3 0.07534 0.01607
1.935 0.1 0.07426 0.01051
1.935 -0.1 0.0686 0.00665
1.935 -0.3 0.06678 0.01121
1.935 -0.5 0.06458 0.00972
1.959 0.5 0.10176 0.01837
1.959 0.3 0.07362 0.01043
1.959 0.1 0.07953 0.0073
1.959 -0.1 0.06391 0.00772
1.959 -0.3 0.06951 0.00685
1.959 -0.5 0.05019 0.00731
1.983 0.5 0.09284 0.0141
1.983 0.3 0.10102 0.01418
1.983 0.1 0.07833 0.00876
1.983 -0.1 0.07335 0.00481
1.983 -0.3 0.0725 0.00706
1.983 -0.5 0.06018 0.00788
1.983 -0.7 0.05968 0.00819
2.006 0.5 0.0975 0.00788
2.006 0.3 0.08292 0.00843
2.006 0.1 0.06781 0.00826
2.006 -0.1 0.07076 0.00444
2.006 -0.3 0.06357 0.00649
2.006 -0.5 0.0624 0.00596
2.006 -0.7 0.04353 0.0059
2.03 0.7 0.08345 0.01961
2.03 0.5 0.07115 0.00613
2.03 0.3 0.07145 0.00601
2.03 0.1 0.08604 0.00751
2.03 -0.1 0.07451 0.00545
2.03 -0.3 0.05531 0.00436
2.03 -0.5 0.05157 0.00371
2.03 -0.7 0.04419 0.00578
2.054 0.7 0.10808 0.02673
2.054 0.5 0.08584 0.01151
2.054 0.3 0.08349 0.00995
2.054 0.1 0.08718 0.00353
2.054 -0.1 0.07616 0.00634
2.054 -0.3 0.06786 0.01089
2.054 -0.5 0.04438 0.00615
2.076 0.7 0.14414 0.01451
2.076 0.5 0.11267 0.01328
2.076 0.3 0.08512 0.00601
2.076 0.1 0.07657 0.00675
2.076 -0.1 0.07114 0.01098
2.076 -0.3 0.05853 0.00642
2.076 -0.5 0.03755 0.00908
2.076 -0.7 0.0368 0.00806
2.099 0.7 0.13879 0.0189
2.099 0.5 0.1071 0.02336
2.099 0.3 0.08697 0.00819
2.099 0.1 0.07078 0.00933
2.099 -0.1 0.06684 0.00727
2.099 -0.3 0.04514 0.00827
2.099 -0.5 0.0419 0.0096
2.099 -0.7 0.03333 0.00469
2.121 0.7 0.09246 0.01536
2.121 0.5 0.09725 0.00646
2.121 0.3 0.08614 0.00777
2.121 0.1 0.05064 0.00674
2.121 -0.1 0.04804 0.0051
2.121 -0.3 0.03957 0.00923
2.121 -0.5 0.0422 0.00628
2.121 -0.7 0.03747 0.00377
2.143 0.7 0.11552 0.0178
2.143 0.5 0.0986 0.00481
2.143 0.3 0.06283 0.00463
2.143 0.1 0.03922 0.00612
2.143 -0.1 0.0286 0.00728
2.143 -0.3 0.03107 0.00579
2.143 -0.5 0.03114 0.00621
2.143 -0.7 0.0208 0.00278
2.165 0.7 0.09947 0.01139
2.165 0.5 0.06683 0.00859
2.165 0.3 0.04398 0.00719
2.165 0.1 0.02712 0.00371
2.165 -0.1 0.02889 0.00837
2.165 -0.3 0.02367 0.00422
2.165 -0.5 0.02349 0.0036
2.165 -0.7 0.02187 0.00486
2.186 0.7 0.0778 0.00995
2.186 0.5 0.0724 0.00972
2.186 0.3 0.05975 0.01036
2.186 0.1 0.04047 0.00541
2.186 -0.1 0.01597 0.00484
2.186 -0.3 0.01654 0.00476
2.186 -0.5 0.01255 0.00752
2.186 -0.7 0.02008 0.00686
2.208 0.7 0.10395 0.01277
2.208 0.5 0.0752 0.00808
2.208 0.3 0.04851 0.00847
2.208 0.1 0.02046 0.00473
2.208 -0.3 0.01137 0.00631
2.208 -0.5 0.01356 0.00352
2.208 -0.7 0.02001 0.00589
2.228 0.7 0.0812 0.01497
2.228 0.5 0.07323 0.01645
2.228 0.3 0.03771 0.00849
2.228 0.1 0.02435 0.00566
2.228 -0.1 0.01461 0.00545
2.228 -0.3 0.00971 0.00391
2.228 -0.5 0.01231 0.00374
2.228 -0.7 0.03021 0.00563
2.249 0.7 0.09255 0.01171
2.249 0.5 0.05364 0.00913
2.249 0.3 0.0278 0.00488
2.249 0.1 0.00528 0.00452
2.249 -0.3 0.01124 0.00554
2.249 -0.5 0.02042 0.00321
2.249 -0.7 0.01587 0.00192