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Measurement E151M2580

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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 : 0.0415 GeV2
W : 1385 GeV
ε : 0.7263
Ebeam : 1.0539 GeV
εL: 0.0912 

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 42 0.3356 0.1848 0.0307
0.25 54 0.1731 0.2415 0.0302
0.35 30 -0.0303 0.2306 0.03
0.35 42 -0.1024 0.1796 0.0301
0.35 54 0.2746 0.2115 0.0305
0.45 30 0.0941 0.2013 0.0301
0.45 42 -0.1408 0.1576 0.0301
0.45 54 0.5235 0.175 0.0318
0.55 54 0.3706 0.2176 0.0309
0.55 234 -0.1768 0.1985 0.0302
0.55 246 0.2585 0.1677 0.0304
0.55 258 -0.0542 0.158 0.03
0.55 270 0.1596 0.2108 0.0302
0.65 138 0.3279 0.2425 0.0307
0.65 150 0.1168 0.2156 0.0301
0.65 162 0.4124 0.2162 0.0311
0.65 222 -0.2091 0.1769 0.0303
0.65 234 -0.2097 0.147 0.0303
0.65 246 0.153 0.1371 0.0302
0.65 258 -0.1542 0.1424 0.0302
0.65 270 -0.1162 0.1988 0.0301
0.75 138 0.1199 0.2208 0.0301
0.75 150 0.3941 0.1675 0.031
0.75 162 -0.3206 0.2262 0.0307
0.75 174 0.507 0.2109 0.0317
0.75 186 0.0008 0.2595 0.03
0.75 222 -0.1207 0.1981 0.0301
0.75 234 -0.0037 0.1563 0.03
0.75 246 -0.4898 0.143 0.0316
0.75 258 0.0564 0.1424 0.03
0.75 270 0.1757 0.1972 0.0302
0.85 126 0.1399 0.2487 0.0301
0.85 150 -0.1736 0.2248 0.0302
0.85 162 -0.024 0.2084 0.03
0.85 174 0.2958 0.2348 0.0306
0.85 222 0.0031 0.1986 0.03
0.85 234 0.1007 0.167 0.0301
0.85 246 -0.1243 0.1586 0.0301
0.85 258 -0.0565 0.142 0.03
0.85 270 -0.0768 0.1671 0.03
0.95 246 0.3598 0.2408 0.0309
0.95 258 0.1404 0.2414 0.0301