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Measurement E151M3148

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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 : 0.1205 GeV2
W : 1685 GeV
ε : 0.7186
Ebeam : 1.9889 GeV
εL: 0.0705 

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
0.45 270 0.49 0.2518 0.0316
0.55 270 0.0301 0.2617 0.03
0.65 138 -0.7935 0.1689 0.0339
0.75 210 -0.2429 0.2667 0.0304
0.75 222 -0.362 0.2563 0.0309
0.75 282 -0.2322 0.2557 0.0304
0.85 102 0.0285 0.2468 0.03
0.85 198 0.3624 0.2646 0.0309
0.85 234 -0.2989 0.2349 0.0306
0.85 246 -0.5006 0.2409 0.0316
0.95 234 -0.1877 0.274 0.0302