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Measurement E151M3604

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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 : 0.0707 GeV2
W : 1775 GeV
ε : 0.8655
Ebeam : 2.999 GeV
εL: 0.0393 

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
0.65 138 0.1763 0.2418 0.0302
0.75 210 0.1304 0.2391 0.0301
0.75 222 -0.2467 0.2315 0.0304
0.85 102 0.2574 0.2343 0.0304
0.85 126 0.2079 0.2595 0.0303
0.85 174 0.8023 0.184 0.034
0.85 186 -0.2618 0.2138 0.0305
0.85 198 0.2289 0.2319 0.0303
0.85 210 -0.0738 0.2158 0.03
0.85 222 -0.2708 0.2052 0.0305