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Measurement E151M44

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

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

Q2 : 0.0121 GeV2
W : 1265 GeV
ε : 0.8946
Ebeam : 1.0539 GeV
εL: 0.0709 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
Plot measurement data

Parameter (X axis): φ(π+), degrees

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

Measured data:

cos(θπ+) φ(π+),
degrees
AUL Data errors Systematic errors
0.25 42 -0.4759 0.5548 0.0619
0.25 54 1.264 0.6258 0.1469
0.35 54 1.6938 0.53 0.195
0.35 66 -0.538 0.6173 0.0682
0.45 42 -0.5415 0.5648 0.0685
0.45 54 -0.2485 0.5983 0.0412
0.45 258 0.2507 0.6495 0.0414
0.45 270 0.0446 0.6152 0.0304
0.55 30 2.2612 2.2612 0.259
0.55 42 -0.668 0.4988 0.0817
0.55 54 0.5457 0.4817 0.069
0.55 234 -0.0002 0.4521 0.03
0.55 246 -0.5603 0.3908 0.0705
0.55 258 -0.0182 0.3337 0.0301
0.55 270 0.663 0.4133 0.0812
0.65 150 -0.5047 0.5165 0.0648
0.65 162 -0.9106 0.4444 0.1079
0.65 174 -0.2116 0.4866 0.0385
0.65 198 -0.021 0.6095 0.0301
0.65 222 0.2962 0.4475 0.0451
0.65 234 0.2106 0.3909 0.0384
0.65 246 0.2172 0.2901 0.0389
0.65 258 -0.4459 0.2859 0.0589
0.65 270 0.4001 0.3565 0.0545
0.75 138 -0.4861 0.5112 0.0629
0.75 150 -0.4587 0.473 0.0602
0.75 162 0.0481 0.4463 0.0305
0.75 174 0.7973 0.4893 0.0955
0.75 186 0.2539 0.4563 0.0416
0.75 198 -0.0435 0.4825 0.0304
0.75 210 0.9077 0.5861 0.1075
0.75 222 -0.4022 0.4242 0.0547
0.75 234 0.3422 0.3704 0.0491
0.75 246 -0.4367 0.2635 0.058
0.75 258 0.0574 0.314 0.0307
0.75 270 0.4835 0.4078 0.0627
0.85 162 -0.2283 0.5322 0.0397
0.85 174 0.2438 0.6038 0.0409
0.85 186 -0.3841 0.5042 0.053
0.85 210 0.6643 0.5856 0.0813
0.85 222 -0.459 0.406 0.0602
0.85 234 0.3005 0.4104 0.0455
0.85 246 0.414 0.387 0.0558
0.85 258 -0.2857 0.3761 0.0442
0.85 270 0.1478 0.5957 0.0344