CLAS Physics Database

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Measurement E76M21

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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 = 0.9139

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 : 1.87 — 2.23 GeV2
W : 1.3 — 1.34 GeV
xb : 0
ε : 0.9139

Select data slice:
cos(θπ) =

Fit φ dependence:

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

Parameter (X axis): φπ,

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 0.07869 0.02448
-0.125 67.5 0.00334 0.02825
-0.125 112.5 0.01627 0.02746
-0.125 157.5 -0.05016 0.07116
-0.125 202.5 0.08639 0.0674
-0.125 247.5 0.01808 0.02702
-0.125 292.5 0.07993 0.02587
-0.125 337.5 -0.0755 0.02457
0.125 22.5 0.00137 0.01897
0.125 67.5 0.04159 0.02799
0.125 112.5 -0.01615 0.02575
0.125 157.5 0.08636 0.054
0.125 202.5 0.0511 0.05537
0.125 247.5 -0.01154 0.0259
0.125 292.5 0.01427 0.02598
0.125 337.5 -0.07117 0.01862
-0.375 22.5 0.02104 0.03065
-0.375 67.5 0.05078 0.03519
-0.375 112.5 0.02941 0.03253
-0.375 157.5 -0.2062 0.13686
-0.375 202.5 0.1443 0.16322
-0.375 247.5 -0.0795 0.03118
-0.375 292.5 0.05992 0.03518
-0.375 337.5 -0.02624 0.03053
0.375 22.5 -0.01781 0.01519
0.375 67.5 -0.05244 0.02328
0.375 112.5 -0.01809 0.02902
0.375 157.5 0.0552 0.04545
0.375 202.5 0.0264 0.04519
0.375 247.5 -0.04138 0.0289
0.375 292.5 -0.02608 0.02298
0.375 337.5 -0.04579 0.01529
-0.625 22.5 0.13682 0.05134
-0.625 67.5 -0.11163 0.04333
-0.625 112.5 0.15701 0.05245
-0.625 157.5 -0.02006 0.09541
-0.625 202.5 -0.06217 0.08231
-0.625 247.5 0.03692 0.05732
-0.625 292.5 0.06124 0.04243
-0.625 337.5 0.1419 0.05196
0.625 22.5 -0.00516 0.01303
0.625 67.5 0.00474 0.01967
0.625 112.5 -0.02965 0.02802
0.625 157.5 0.06683 0.02656
0.625 202.5 0.06106 0.02461
0.625 247.5 -0.04935 0.02724
0.625 292.5 0.0086 0.01931
0.625 337.5 -0.01997 0.01354
-0.875 22.5 0.01038 0.18244
-0.875 67.5 -0.07111 0.11206
-0.875 112.5 0.56107 0.24329
-0.875 202.5 -0.01661 0.58636
-0.875 247.5 -0.95143 0.25567
-0.875 292.5 0.16603 0.12821
-0.875 337.5 -0.10705 0.16048
0.875 22.5 0.04471 0.01264
0.875 67.5 0.01906 0.01651
0.875 112.5 -0.02619 0.01781
0.875 157.5 -0.03556 0.01787
0.875 202.5 -0.02605 0.01772
0.875 247.5 -0.00374 0.01739
0.875 292.5 0.02011 0.01655
0.875 337.5 -0.00061 0.01276