CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E151M922

You are not logged in.

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 : 0.0707 GeV2
W : 1685 GeV
ε : 0.81
Ebeam : 2.2596 GeV
εL: 0.049 

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
0.45 270 0.7074 0.5998 0.0553
0.65 78 0.4505 0.5934 0.0421
0.65 126 -0.7793 0.4921 0.0593
0.65 210 0.5404 0.6975 0.0464
0.75 210 0.6777 0.6674 0.0536
0.75 234 1.3794 0.6661 0.0954
0.75 270 0.9267 0.5994 0.0678
0.75 282 -0.1001 0.5496 0.0307
0.85 102 -0.6517 0.5803 0.0522
0.85 114 -0.3308 0.5663 0.037
0.85 126 -0.3405 0.6688 0.0374
0.85 210 -0.4915 0.6752 0.044
0.85 222 -0.083 0.6312 0.0305
0.45 282 -0.9339 1.2882 0.0913
0.65 126 0.1554 1.7187 0.0333
0.65 198 0.7819 1.8013 0.0782
0.75 210 -3.0046 1.41 0.2789
0.75 234 -0.4239 1.6047 0.0493
0.75 270 1.3681 1.6973 0.1298
0.75 282 1.4022 1.2975 0.1328
0.75 294 -0.1779 1.5794 0.0342
0.85 102 -0.0482 1.9857 0.0303
0.85 114 3.7983 1.8663 0.3518
0.85 210 1.0311 2.0773 0.0998