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Measurement E151M522

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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 : 0.101 GeV2
W : 1325 GeV
ε : 0.9397
Ebeam : 1.9889 GeV
εL: 0.3506 

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
0.05 306 -0.522 0.5435 0.0438
0.15 66 -0.5978 0.5258 0.0473
0.15 306 0.5618 0.56 0.0456
0.15 318 0.1601 0.6156 0.0316
0.25 66 -0.5064 0.4325 0.0431
0.25 78 0.1827 0.5932 0.032
0.25 294 1.3172 0.5163 0.086
0.25 306 0.4815 0.4993 0.042
0.25 318 -1.0359 0.4839 0.0701
0.35 66 1.0994 0.4792 0.0736
0.35 78 0.9156 0.5418 0.0635
0.35 282 -0.0599 0.5685 0.0302
0.35 294 -0.6499 0.3521 0.0498
0.35 306 -0.4102 0.4603 0.0391
0.45 66 0.4594 0.4293 0.0411
0.45 78 0.2676 0.4131 0.0342
0.45 90 -0.2917 0.5244 0.0349
0.45 282 -0.7017 0.4725 0.0524
0.45 294 0.4443 0.443 0.0405
0.55 66 0.684 0.4829 0.0515
0.55 78 0.9001 0.4948 0.0627
0.55 90 0.3805 0.5601 0.038
0.55 258 -1.0989 0.4437 0.0736
0.55 270 0.0969 0.5325 0.0306
0.55 282 0.715 0.4778 0.053
0.55 294 0.7306 0.6298 0.0538
0.65 66 -0.2196 0.5955 0.0329
0.65 90 -0.2585 0.5211 0.0339
0.65 102 -0.1119 0.4758 0.0308
0.65 114 -0.1354 0.4594 0.0311
0.65 126 -0.6776 0.588 0.0512
0.65 246 0.0779 0.4679 0.0304
0.65 258 0.3368 0.3789 0.0364
0.65 270 -0.4447 0.3265 0.0405
0.65 282 -0.1803 0.5476 0.032
0.75 90 1.1311 0.5873 0.0754
0.75 102 -0.193 0.4913 0.0322
0.75 114 0.2459 0.4 0.0336
0.75 126 -0.5616 0.3678 0.0456
0.75 138 0.5225 0.5929 0.0438
0.75 222 -0.309 0.518 0.0355
0.75 234 -0.4177 0.3764 0.0394
0.75 246 0.269 0.3637 0.0342
0.75 258 0.2413 0.3178 0.0334
0.75 270 0.2065 0.3705 0.0325
0.75 282 -0.2056 0.3791 0.0325
0.85 90 -0.6254 0.4708 0.0486
0.85 102 0.2288 0.3914 0.0331
0.85 114 -0.1935 0.3383 0.0323
0.85 126 0.5302 0.4248 0.0442
0.85 138 0.6323 0.4339 0.0489
0.85 150 -0.4214 0.3833 0.0396
0.85 162 -0.2931 0.5595 0.0349
0.85 210 -1.0148 0.38 0.0689
0.85 222 -0.8955 0.3578 0.0624
0.85 234 0.6047 0.3972 0.0476
0.85 246 0.2436 0.353 0.0335
0.85 258 -0.0944 0.3044 0.0306
0.85 270 0.064 0.3169 0.0303
0.85 282 -0.1255 0.3745 0.031
0.95 102 -0.3955 0.4359 0.0385
0.95 114 0.5452 0.4023 0.0449
0.95 126 -0.1578 0.4114 0.0315
0.95 138 -0.1992 0.4281 0.0324
0.95 150 1.0873 0.5093 0.073
0.95 174 0.5277 0.5744 0.0441
0.95 222 -0.33 0.3905 0.0362
0.95 234 0.0171 0.4028 0.03
0.95 246 1.003 0.3873 0.0683
0.95 258 0.2927 0.344 0.0349
0.95 270 0.0245 0.3643 0.03
0.95 282 0.3008 0.5086 0.0352