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Measurement E151M539

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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 : 0.1435 GeV2
W : 1355 GeV
ε : 0.9189
Ebeam : 1.9889 GeV
εL: 0.3844 

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 66 0.6445 0.613 0.0495
0.25 294 -1.0759 0.3984 0.0723
0.35 66 -0.8389 0.5408 0.0594
0.35 78 0.9405 0.6213 0.0649
0.45 78 0.1956 0.5116 0.0323
0.45 294 -0.7349 0.4928 0.054
0.55 66 0.1778 0.5486 0.0319
0.55 78 -0.2809 0.5929 0.0346
0.55 282 -1.3286 0.4442 0.0866
0.65 90 0.8696 0.6964 0.0611
0.65 102 0.3538 0.6005 0.037
0.65 114 -0.0054 0.5562 0.03
0.65 246 -0.1625 0.6058 0.0316
0.65 258 -0.3472 0.4543 0.0368
0.65 270 -0.0437 0.4366 0.0301
0.65 282 0.8272 0.7814 0.0588
0.75 90 0.4843 0.5508 0.0422
0.75 102 0.2188 0.4062 0.0329
0.75 114 -0.4155 0.4061 0.0393
0.75 126 -0.2086 0.5003 0.0326
0.75 138 -0.8014 0.5153 0.0575
0.75 222 0.0668 0.6002 0.0303
0.75 234 0.8036 0.6031 0.0576
0.75 246 -0.7153 0.3584 0.053
0.75 258 0.3668 0.4265 0.0375
0.75 270 -0.7293 0.3796 0.0538
0.75 282 -0.348 0.6275 0.0368
0.75 294 0.679 0.67 0.0512
0.85 90 1.1942 0.5448 0.079
0.85 102 0.0934 0.4046 0.0305
0.85 114 0.754 0.4642 0.055
0.85 126 0.3634 0.4181 0.0373
0.85 138 -0.6389 0.4243 0.0493
0.85 150 1.19 0.6748 0.0787
0.85 162 -0.1336 0.6929 0.0311
0.85 222 0.2275 0.4905 0.0331
0.85 234 -0.3012 0.4237 0.0352
0.85 246 0.2071 0.4498 0.0326
0.85 258 0.0164 0.4345 0.03
0.85 270 -0.8772 0.2852 0.0615
0.85 282 -0.8914 0.2848 0.0622
0.85 294 0.3709 0.5876 0.0376
0.95 78 -0.0557 0.5692 0.0302
0.95 102 -0.6059 0.5007 0.0477
0.95 114 0.3048 0.5392 0.0353
0.95 126 -0.2448 0.4693 0.0335
0.95 138 -0.5019 0.5046 0.0429
0.95 150 -0.2735 0.5573 0.0343
0.95 222 0.0059 0.4821 0.03
0.95 234 0.4131 0.542 0.0392
0.95 246 -0.2021 0.4146 0.0324
0.95 258 -0.7897 0.3253 0.0569
0.95 270 0.2683 0.426 0.0342
0.95 282 0.3459 0.4041 0.0367