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Measurement E151M2929

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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 : 0.348 GeV2
W : 1235 GeV
ε : 0.8997
Ebeam : 1.9889 GeV
εL: 1.1186 

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
0.25 66 0.1658 0.2388 0.0302
0.45 282 0.1389 0.2751 0.0301
0.65 270 0.3557 0.2474 0.0308
0.65 282 0.2071 0.2673 0.0303
0.75 102 -0.1773 0.2457 0.0302
0.75 258 -0.3076 0.2438 0.0306
0.75 282 -0.1758 0.2692 0.0302
0.85 102 0.3081 0.2362 0.0306
0.85 258 0.3109 0.255 0.0306