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Measurement E151M2878

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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: ALU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.101 GeV2
W : 1565 GeV
ε : 0.563
Ebeam : 1.3383 GeV
εL: 0.0718 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALU,
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
ALU Stat. error Syst. error
0.75 138 0.0564 0.2787 0.03
0.75 234 -0.1604 0.2739 0.0302
0.75 246 0.1586 0.2528 0.0302
0.95 114 0.1256 0.282 0.0301
0.65 234 -0.1345 0.3756 0.0301
0.65 246 -0.4845 0.2864 0.0315
0.75 234 -0.096 0.375 0.0301
0.75 246 0.3268 0.3283 0.0307
0.75 258 -0.178 0.3642 0.0302
0.85 234 -0.1042 0.4102 0.0301
0.85 246 -0.4199 0.2614 0.0312