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Measurement E151M689

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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 : 1655 GeV
ε : 0.7643
Ebeam : 1.9889 GeV
εL: 0.0602 

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
0.45 282 0.6887 0.6155 0.0517
0.65 114 -0.5822 0.5605 0.0466
0.65 126 -0.649 0.6468 0.0498
0.65 198 0.8361 0.8122 0.0593
0.65 222 0.9132 0.7175 0.0634
0.65 282 1.465 0.7284 0.0945
0.65 294 -0.9858 0.5095 0.0673
0.75 66 -0.4212 0.6285 0.0395
0.75 198 0.3192 0.7332 0.0358
0.75 222 0.58 0.6889 0.0465
0.75 234 1.0322 0.667 0.0699
0.75 282 0.5379 0.5235 0.0445
0.75 294 -0.2441 0.5994 0.0335
0.85 114 -0.7972 0.5631 0.0572
0.85 210 0.9273 0.6915 0.0642
0.85 222 -0.1223 0.6282 0.0309
0.85 234 1.1515 0.804 0.0766
0.85 246 -0.8192 0.5586 0.0584