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Measurement E151M749

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

Q2 : 0.2915 GeV2
W : 1265 GeV
ε : 0.9291
Ebeam : 2.2596 GeV
εL: 0.9326 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
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
AUL Stat. error Syst. error
0.65 270 0.2001 0.4883 0.0327
0.75 90 -0.0946 0.4249 0.0306
0.75 270 0.6469 0.4828 0.052
0.75 282 0.478 0.509 0.0434
0.75 294 0.3703 0.4725 0.0386
0.85 66 -0.0066 0.5047 0.03
0.85 90 -0.0153 0.4687 0.03
0.85 282 -0.0898 0.5114 0.0306
0.95 282 0.8817 0.7987 0.0652
0.55 282 -0.8129 1.4703 0.0808
0.65 270 1.6559 1.6724 0.1557
0.65 282 -1.9572 1.3615 0.1831
0.75 270 0.7085 1.5772 0.0719
0.75 282 0.9113 1.7302 0.0893
0.85 66 0.9266 2.2505 0.0906
0.85 90 -2.3308 2.066 0.2172
0.85 102 -3.6034 1.915 0.3339
0.85 294 -0.4132 1.8691 0.0485
0.95 78 5.8368 6.0771 0.5395