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Measurement E151M407

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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 : 0.0205 GeV2
W : 1535 GeV
ε : 0.6866
Ebeam : 1.3383 GeV
εL: 0.0221 

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
0.45 18 0.1049 0.6685 0.0307
0.45 30 -0.097 0.6826 0.0306
0.45 42 0.4961 0.5567 0.0451
0.45 222 0.6483 0.5636 0.0518
0.55 42 0.0656 0.5056 0.0347
0.55 138 -0.6518 0.6912 0.0503
0.55 150 -0.0275 0.4833 0.0462
0.55 162 -0.0037 0.7077 0.03
0.55 174 -0.7169 0.6751 0.0536
0.55 186 0.0905 0.7336 0.0305
0.55 210 -0.4323 0.8451 0.0397
0.55 222 1.0102 0.503 0.0706
0.55 234 -0.3131 0.4047 0.039
0.55 246 -0.5731 0.5206 0.0707
0.65 138 -1.2633 0.408 0.0825
0.65 162 -0.6762 0.4591 0.0533
0.65 210 1.1258 0.5936 0.0757
0.65 222 0.3012 0.4453 0.0386
0.65 234 1.502 0.4563 0.0974
0.75 138 -0.7383 0.8639 0.0536
0.75 150 -1.5403 0.5369 0.0975
0.75 210 1.5696 0.5787 0.1011
0.75 222 0.2561 0.4538 0.0345
0.75 234 0.2694 0.4236 0.0654
0.85 126 -0.0157 0.6237 0.03
0.85 138 -0.5923 0.5454 0.0474
0.85 210 1.1717 0.5648 0.0785
0.85 222 1.0085 0.6063 0.0693
0.85 234 1.1317 0.5896 0.0762
0.75 246 -0.1872 0.6813 0.032
0.85 126 -1.0373 0.7152 0.0693
0.85 222 0.2352 0.9544 0.0332
0.85 234 -0.6625 0.7597 0.0499