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Measurement E151M491

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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 : 0.0844 GeV2
W : 1265 GeV
ε : 0.9583
Ebeam : 1.9889 GeV
εL: 0.4406 

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 Stat. error Syst. error
0.25 66 0.2506 0.5063 0.0337
0.25 78 0.0821 0.5435 0.0304
0.25 294 0.3793 0.5628 0.0379
0.25 306 -1.0652 0.3657 0.0717
0.35 66 0.1139 0.3562 0.0308
0.35 78 0.3771 0.422 0.0378
0.35 294 -0.1529 0.5562 0.0314
0.45 66 -0.0235 0.3744 0.03
0.45 78 0.1625 0.3259 0.0316
0.45 90 0.0626 0.5532 0.0302
0.45 282 0.127 0.4846 0.031
0.55 66 -0.0858 0.4997 0.0305
0.55 78 0.0309 0.3272 0.0301
0.55 90 -0.5257 0.3862 0.044
0.55 258 0.3688 0.6114 0.0375
0.55 270 0.586 0.4169 0.0467
0.55 282 -0.3 0.3627 0.0352
0.65 78 0.5364 0.4305 0.0445
0.65 90 -0.4023 0.4402 0.0388
0.65 102 0.4007 0.5598 0.0387
0.65 258 0.3532 0.3255 0.037
0.65 270 0.0728 0.3013 0.0303
0.65 282 -0.2532 0.3561 0.0338
0.75 90 -0.0579 0.4864 0.0302
0.75 102 -0.1433 0.4741 0.0313
0.75 114 -0.3521 0.3799 0.0369
0.75 126 0.0712 0.4213 0.0303
0.75 138 0.5404 0.6905 0.0446
0.75 234 -0.2367 0.4462 0.0333
0.75 246 -0.4588 0.346 0.0411
0.75 258 -0.128 0.2918 0.031
0.75 270 0.0568 0.2785 0.0302
0.75 282 -0.505 0.311 0.0431
0.85 90 0.2852 0.5493 0.0347
0.85 102 0.2553 0.3413 0.0338
0.85 114 -0.2005 0.2654 0.0324
0.85 126 -0.0606 0.3119 0.0302
0.85 138 0.3788 0.3536 0.0379
0.85 150 0.2016 0.3453 0.0324
0.85 162 -0.2255 0.4938 0.033
0.85 174 0.8966 0.6072 0.0625
0.85 222 0.1182 0.4825 0.0309
0.85 234 0.0014 0.4084 0.03
0.85 246 -0.2285 0.2883 0.0331
0.85 258 -0.0587 0.2733 0.0302
0.85 270 0.1918 0.2999 0.0322
0.95 102 0.3841 0.5175 0.0381
0.95 114 0.0148 0.3736 0.03
0.95 126 0.1387 0.3341 0.0312
0.95 138 -0.0798 0.2971 0.0304
0.95 150 0.6406 0.3774 0.0493
0.95 162 -0.0503 0.3436 0.0302
0.95 174 0.0065 0.3362 0.03
0.95 186 -0.1136 0.4363 0.0308
0.95 198 1.2464 0.4943 0.0819
0.95 210 0.1173 0.5184 0.0308
0.95 222 -0.5617 0.4185 0.0456
0.95 234 -0.742 0.3152 0.0544
0.95 246 0.0426 0.4655 0.0301
0.95 258 0.2855 0.4676 0.0347