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Measurement E151M2791

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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 : 0.0101 GeV2
W : 1445 GeV
ε : 0.8102
Ebeam : 1.3383 GeV
εL: 0.0194 

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 -0.1369 0.2693 0.0301
0.55 234 -0.4033 0.1338 0.0329
0.65 138 0.6705 0.2742 0.0329
0.65 222 0.0514 0.2865 0.03
0.65 234 -0.0434 0.21 0.0303
0.75 162 -0.3938 0.3204 0.031
0.75 222 -0.3059 0.3991 0.0306
0.75 234 0.5364 0.2284 0.0319
0.85 210 0.0257 0.3835 0.03
0.85 222 -0.1491 0.3419 0.0301
0.85 234 0.3947 0.3219 0.031
0.65 246 -0.3547 0.2585 0.0308
0.75 234 -0.4782 0.2067 0.0315
0.75 246 -0.1226 0.2818 0.0301
0.85 234 -0.18 0.273 0.0302