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Measurement E151M2456

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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 : 0.0593 GeV2
W : 1205 GeV
ε : 0.8959
Ebeam : 1.0539 GeV
εL: 0.4697 

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
0.45 282 0.2086 0.2208 0.0303
0.55 270 -0.0976 0.1751 0.0301
0.55 282 -0.1405 0.1867 0.0301
0.65 258 0.2142 0.2243 0.0303
0.65 270 -0.1892 0.1622 0.0302
0.65 282 0.0492 0.199 0.03
0.75 258 -0.0997 0.2233 0.0301
0.75 270 -0.1849 0.1846 0.0302
0.75 282 -0.0148 0.238 0.03
0.85 150 0.1786 0.1894 0.0302
0.85 162 0.0747 0.196 0.03
0.85 174 0.2251 0.1883 0.0303
0.85 186 0.1442 0.1642 0.0301
0.85 198 0.3471 0.2051 0.0308
0.85 210 -0.0243 0.1873 0.03
0.85 222 -0.0796 0.2057 0.03
0.85 246 -0.4295 0.2264 0.0312
0.85 258 -0.1754 0.2214 0.0302
0.95 150 -0.016 0.2446 0.03
0.95 162 -0.0384 0.1968 0.03
0.95 174 -0.0182 0.1881 0.03
0.95 186 0.0247 0.2144 0.03
0.95 198 0.3202 0.1962 0.0307
0.95 210 0.3546 0.2425 0.0308
0.95 222 -0.2429 0.2145 0.0304