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Measurement E151M3589

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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 : 0.496 GeV2
W : 1715 GeV
ε : 0.8027
Ebeam : 2.999 GeV
εL: 0.2145 

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
0.75 78 0.0334 0.2845 0.03
0.85 66 0.3537 0.2407 0.0308
0.85 78 0.4227 0.2241 0.0312
0.85 222 -0.1059 0.2748 0.0301
0.85 246 -0.4026 0.2357 0.0311
0.95 198 -0.1344 0.2194 0.0301
0.95 210 -0.1186 0.2711 0.0301
0.95 222 -0.207 0.2316 0.0303
0.95 246 0.4804 0.2093 0.0315
0.95 258 -0.0522 0.2594 0.03
0.95 270 -0.4528 0.2528 0.0313
0.95 282 -0.0224 0.2715 0.03
0.95 294 -0.4777 0.2355 0.0315