CLAS Physics Database

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Measurement E76M28

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Experiment: E99-107 CLAS experiment, 2005

Spokespersons: V. D. Burkert, R. Minehart

Experiment comment: asymmetry

Measurement comment: Epsilon for this measurement is ε = 0.8508

No publications available for this experiment

Quantity measured: ALU,
Beam asymmetry.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none

Q2 : 2.66 — 3.17 GeV2
W : 1.34 — 1.38 GeV
xb : 0
ε : 0.8508

Select data slice:
cos(θπ) =

Fit φ dependence:

Observable quantity measured (Y axis): ALU,
Plot measurement data

Parameter (X axis): φπ,

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Click here to get data in text file, delimited with tabs.

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

cos(θπ) φπ ALU Data errors
-0.125 22.5 0.00564 0.03741
-0.125 67.5 -0.03037 0.04419
-0.125 112.5 0.0544 0.04597
-0.125 202.5 0.24554 0.09608
-0.125 247.5 -0.01544 0.04583
-0.125 292.5 -0.04607 0.0424
-0.125 337.5 0.03611 0.03981
0.125 22.5 0.01838 0.02894
0.125 67.5 0.02612 0.03885
0.125 112.5 -0.10285 0.0424
0.125 157.5 0.10107 0.07773
0.125 202.5 0.10707 0.08356
0.125 247.5 0.14301 0.0421
0.125 292.5 0.08763 0.04065
0.125 337.5 -0.00269 0.02998
-0.375 22.5 -0.09997 0.05041
-0.375 67.5 -0.17775 0.05565
-0.375 112.5 -0.15873 0.05309
-0.375 247.5 0.08446 0.05149
-0.375 292.5 -0.01991 0.05358
-0.375 337.5 -0.02995 0.05121
0.375 22.5 -0.06233 0.02695
0.375 67.5 0.02016 0.03886
0.375 112.5 0.14576 0.04879
0.375 157.5 -0.10174 0.07733
0.375 202.5 -0.02266 0.07234
0.375 247.5 0.07298 0.05002
0.375 292.5 0.11245 0.03807
0.375 337.5 0.01315 0.02718
-0.625 22.5 0.09845 0.07049
-0.625 67.5 0.05275 0.07045
-0.625 112.5 -0.17216 0.0852
-0.625 247.5 -0.07346 0.08479
-0.625 292.5 0.11148 0.0724
-0.625 337.5 0.00105 0.06871
0.625 22.5 0.02862 0.02686
0.625 67.5 -0.02008 0.03664
0.625 112.5 0.03975 0.04784
0.625 157.5 0.00555 0.04589
0.625 202.5 -0.02046 0.04515
0.625 247.5 0.01637 0.04571
0.625 292.5 -0.03796 0.03662
0.625 337.5 -0.00889 0.02671
-0.875 22.5 -0.31767 0.14534
-0.875 67.5 -0.21974 0.15138
-0.875 112.5 -0.08745 0.19411
-0.875 157.5 0.42499 0.38302
-0.875 202.5 0.77113 0.32723
-0.875 247.5 0.13331 0.19012
-0.875 292.5 -0.07775 0.15135
-0.875 337.5 -0.26052 0.146
0.875 22.5 -0.0207 0.03098
0.875 67.5 -0.07923 0.03236
0.875 112.5 -0.1118 0.03657
0.875 157.5 -0.02067 0.0371
0.875 202.5 -0.00275 0.03604
0.875 247.5 -0.01846 0.03477
0.875 292.5 -0.01144 0.03267
0.875 337.5 -0.01885 0.03081