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Measurement E151M92

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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 : 0.0291 GeV2
W : 1325 GeV
ε : 0.82
Ebeam : 1.0539 GeV
εL: 0.1029 

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
0.15 42 0.545 0.7961 0.0689
0.25 30 -0.6582 0.692 0.0807
0.25 42 -0.4912 0.6355 0.0634
0.25 54 1.2639 0.7593 0.1469
0.35 30 -0.6806 0.6598 0.083
0.35 42 1.4777 0.6359 0.1708
0.35 54 -1.0614 0.6417 0.1244
0.45 30 0.165 0.5141 0.0354
0.45 42 1.8528 0.5936 0.2129
0.45 54 -0.1179 0.6355 0.0329
0.55 42 0.3305 0.6823 0.0481
0.55 54 0.7684 0.7838 0.0924
0.55 234 -0.552 0.4456 0.0696
0.55 246 -0.5137 0.4254 0.0657
0.55 258 0.5096 0.4376 0.0653
0.55 270 -0.3611 0.5464 0.0509
0.65 138 -0.3029 0.6806 0.0457
0.65 150 0.1503 0.6579 0.0345
0.65 162 0.1399 0.7163 0.034
0.65 174 -0.2904 0.7757 0.0446
0.65 186 -0.1411 0.7908 0.034
0.65 210 0.127 0.7335 0.0333
0.65 222 0.2794 0.5342 0.0437
0.65 234 0.3969 0.4276 0.0542
0.65 246 -0.4267 0.4125 0.0571
0.65 258 -0.0269 0.3736 0.0302
0.65 270 0.8147 0.5156 0.0974
0.75 138 0.7439 0.7005 0.0898
0.75 150 0.0544 0.5517 0.0306
0.75 162 -0.5234 0.5259 0.0667
0.75 174 -0.4225 0.5321 0.0567
0.75 186 -0.3914 0.6292 0.0537
0.75 222 1.7388 0.5667 0.2001
0.75 234 -0.2578 0.4074 0.042
0.75 246 0.2478 0.4277 0.0412
0.75 258 0.0822 0.392 0.0314
0.75 270 0.1649 0.4267 0.0354
0.75 282 -0.1446 0.6841 0.0342
0.85 138 -0.8868 0.5843 0.1053
0.85 150 -0.4991 0.556 0.0642
0.85 162 -0.6613 0.569 0.081
0.85 174 0.0942 0.7022 0.0319
0.85 222 -0.9339 0.5528 0.1104
0.85 234 -0.3308 0.4352 0.0481
0.85 246 0.546 0.3618 0.069
0.85 258 0.4539 0.4478 0.0597
0.85 270 -0.0724 0.3797 0.0311
0.85 282 1.0912 0.6902 0.1277
0.95 138 -0.28 0.5088 0.0438
0.95 246 0.1579 0.4678 0.035
0.95 258 -0.0126 0.579 0.03