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Measurement E151M307

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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 : 0.2445 GeV2
W : 1355 GeV
ε : 0.7279
Ebeam : 1.3383 GeV
εL: 0.4351 

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
0.65 270 0.906 1.1044 0.0623
0.65 282 -0.1045 0.94 0.0307
0.75 126 -0.6567 0.8624 0.0496
0.75 246 -0.8105 0.6007 0.0573
0.85 102 -0.5539 0.8474 0.0449
0.85 114 -0.2632 1.0102 0.0339
0.85 126 0.9587 1.2115 0.0651
0.85 150 0.3103 1.0193 0.0353
0.85 258 1.6438 1.2439 0.1034
0.85 282 1.6967 1.1966 0.1065
0.85 294 0.3933 0.7748 0.0382
0.85 306 -0.5731 0.7281 0.0457
0.95 294 0.2293 0.9609 0.033
0.55 258 -0.9783 0.6407 0.0676
0.65 258 -0.4518 0.5992 0.041
0.65 270 -0.5778 0.5961 0.0467
0.75 234 -0.1469 0.6823 0.0313
0.75 246 -0.5243 0.6142 0.0442
0.75 270 -0.0119 0.6587 0.03
0.75 282 -0.8153 0.6146 0.0587
0.85 114 -0.5027 0.6288 0.0432
0.85 126 -0.6913 0.6296 0.0523
0.85 138 0.1649 0.616 0.0317
0.85 234 -0.043 0.6513 0.0301
0.85 246 -0.2661 0.6096 0.0342
0.85 258 -0.0391 0.6419 0.0301
0.85 270 -1.2491 0.4796 0.083
0.85 282 0.1761 0.559 0.0319
0.85 294 -1.4516 0.4933 0.0948
0.85 306 0.0014 0.6359 0.03
0.95 138 -0.1393 0.6046 0.0312
0.95 270 0.0255 0.5293 0.03
0.95 294 0.2014 0.528 0.0325