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Measurement E151M2634

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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 : 0.0245 GeV2
W : 1475 GeV
ε : 0.5835
Ebeam : 1.0539 GeV
εL: 0.0289 

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
0.25 30 0.2331 0.2378 0.0304
0.25 42 0.3296 0.2068 0.0307
0.25 54 -0.1812 0.2435 0.0302
0.35 42 0.0232 0.1903 0.03
0.35 54 -0.1625 0.1597 0.0302
0.35 66 -0.0117 0.2404 0.03
0.35 246 0.5664 0.2558 0.0321
0.45 30 0.1273 0.2368 0.0301
0.45 42 -0.0982 0.1889 0.0301
0.45 54 0.2694 0.191 0.0305
0.45 66 0.1617 0.1833 0.0302
0.45 222 0.0463 0.2454 0.03
0.45 234 -0.0225 0.2056 0.03
0.45 246 0.1794 0.2216 0.0302
0.45 258 -0.2846 0.2077 0.0305
0.55 30 0.2514 0.2435 0.0304
0.55 42 0.5192 0.2252 0.0317
0.55 54 0.3097 0.2014 0.0306
0.55 150 0.0919 0.2243 0.0301
0.55 162 -0.1953 0.2268 0.0303
0.55 222 -0.0498 0.1987 0.03
0.55 234 -0.0438 0.1961 0.03
0.55 246 0.1104 0.1922 0.0301
0.55 258 0.041 0.1985 0.03
0.65 162 0.085 0.2292 0.03
0.65 174 -0.1059 0.2235 0.0301
0.65 186 0.118 0.2476 0.0301
0.65 222 -0.1404 0.1914 0.0301
0.65 234 -0.0288 0.167 0.03
0.65 246 -0.1347 0.1751 0.0301
0.65 258 0.1046 0.1951 0.0301
0.75 30 -0.0984 0.2501 0.0301
0.75 42 -0.2301 0.2198 0.0304
0.75 222 0.3773 0.2 0.0309
0.75 234 0.0166 0.1863 0.03
0.75 246 0.0427 0.1562 0.03
0.75 258 0.0617 0.2028 0.03
0.85 222 0.132 0.2196 0.0301
0.85 234 -0.192 0.1979 0.0302
0.85 246 -0.1683 0.188 0.0302
0.85 258 -0.1174 0.1868 0.0301