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Measurement E151M3208

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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 : 1325 GeV
ε : 0.9646
Ebeam : 2.2596 GeV
εL: 0.197 

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
0.45 66 0.6751 0.1868 0.0329
0.55 78 -0.081 0.2317 0.03
0.65 78 0.0784 0.2344 0.03
0.65 246 -0.4595 0.1786 0.0314
0.65 258 -0.0868 0.2395 0.0301
0.75 114 -0.1329 0.2182 0.0301
0.75 126 -0.4499 0.2518 0.0313
0.75 138 -0.1726 0.2154 0.0302
0.75 234 0.1472 0.2398 0.0301
0.75 246 0.089 0.2117 0.0301
0.75 258 0.1461 0.2174 0.0301
0.75 270 -0.2109 0.2258 0.0303
0.85 114 0.0744 0.266 0.03
0.85 126 -0.0394 0.2165 0.03
0.85 138 0.2886 0.2246 0.0306
0.85 234 0.0717 0.2349 0.03
0.85 246 -0.0098 0.1966 0.03
0.85 258 0.2154 0.1814 0.0303
0.85 270 -0.2237 0.2101 0.0303
0.45 78 0.001 0.2296 0.03
0.55 78 -0.2331 0.2459 0.0304
0.65 258 0.1161 0.2571 0.0301
0.75 126 0.3568 0.2176 0.0308
0.75 138 0.8638 0.1528 0.0346
0.75 246 0.1836 0.2252 0.0302
0.75 258 -0.2625 0.191 0.0305
0.85 114 -0.0502 0.2341 0.03
0.85 138 0.0348 0.2536 0.03
0.85 234 0.3698 0.2208 0.0309
0.85 246 -0.3408 0.2084 0.0308
0.85 258 0.2316 0.1989 0.0304
0.85 270 -0.1361 0.2345 0.0301