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Measurement E151M380

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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 : 0.1205 GeV2
W : 1475 GeV
ε : 0.6854
Ebeam : 1.3383 GeV
εL: 0.1451 

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
0.55 138 -0.7555 0.647 0.0556
0.55 222 0.7206 0.5155 0.0713
0.55 234 0.714 0.7017 0.0534
0.55 246 0.1496 0.5267 0.0649
0.55 258 0.1067 0.5537 0.0309
0.65 126 -0.4301 0.5173 0.0414
0.65 138 -0.9937 0.4756 0.0715
0.65 150 -0.6045 0.6089 0.048
0.65 222 0.6713 0.5562 0.0537
0.65 234 0.6317 0.6166 0.0503
0.65 246 0.2249 0.4264 0.0332
0.65 258 0.0518 0.4307 0.0318
0.75 126 -0.8903 0.4446 0.0622
0.75 138 -1.2754 0.4023 0.0834
0.75 150 0.207 0.632 0.0326
0.75 210 -1.0323 0.5943 0.069
0.75 222 2.0289 1.1767 0.1258
0.75 234 0.017 0.4192 0.0355
0.75 246 0.2535 0.4413 0.0339
0.75 258 0.3028 0.3886 0.0354
0.85 126 -0.4318 0.8609 0.0397
0.85 150 -1.9542 0.48 0.1247
0.85 234 0.2791 0.3667 0.0868
0.85 246 -0.0226 0.3207 0.0657
0.85 258 -0.2152 0.3662 0.0332
0.85 270 0.6276 0.4515 0.0532
0.95 102 0.4131 0.5821 0.0394
0.95 114 -0.8717 0.3652 0.062
0.95 246 0.6627 0.4463 0.0521
0.95 258 -0.2592 0.4802 0.034
0.95 270 1.3897 1.0818 0.0889