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Measurement E151M2891

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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 : 0.0496 GeV2
W : 1595 GeV
ε : 0.5578
Ebeam : 1.3383 GeV
εL: 0.0332 

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
0.55 222 -0.0403 0.2083 0.0301
0.65 150 -0.0928 0.2185 0.0301
0.65 222 0.2255 0.225 0.0303
0.75 234 0.01 0.2292 0.03
0.85 138 -0.1489 0.258 0.0301
0.85 150 0.2273 0.2771 0.0303
0.85 222 0.1131 0.266 0.0301
0.85 234 -0.0104 0.2789 0.03
0.85 246 0.1047 0.2637 0.0301
0.65 234 0.0834 0.3893 0.03
0.65 246 -0.3693 0.3711 0.0309
0.75 222 0.51 0.2805 0.0317
0.75 234 -0.1518 0.4093 0.0302
0.85 234 -0.0605 0.4247 0.03