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Measurement E151M2647

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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 : 0.0348 GeV2
W : 1205 GeV
ε : 0.951
Ebeam : 1.3383 GeV
εL: 0.3169 

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 0.3683 0.1876 0.031
0.55 258 0.3521 0.2635 0.0308
0.55 270 -0.2191 0.1638 0.0304
0.55 282 -0.0195 0.1858 0.03
0.65 246 0.1745 0.2409 0.0302
0.65 258 -0.057 0.1785 0.03
0.65 270 -0.1109 0.1212 0.0321
0.65 282 -0.2792 0.171 0.0306
0.75 138 -0.6358 0.2511 0.0326
0.75 234 -0.9334 0.1119 0.0353
0.75 246 -0.2929 0.1894 0.031
0.75 258 -0.1919 0.1552 0.0303
0.75 270 -0.0089 0.1896 0.0304
0.85 138 0.4151 0.297 0.0311
0.85 150 0.1189 0.274 0.0301
0.85 162 -0.0681 0.2955 0.03
0.85 174 0.4991 0.2598 0.0316
0.85 186 0.7355 0.1472 0.0334
0.85 198 0.3696 0.3147 0.0309
0.85 210 -0.0798 0.4022 0.03
0.85 222 -0.658 0.2169 0.0328
0.85 258 -0.2617 0.3794 0.0305
0.95 162 0.3666 0.3369 0.0309
0.95 210 -0.8652 0.1711 0.0346
0.75 282 0.3444 0.2704 0.0308
0.85 126 -0.4735 0.2598 0.0315
0.85 138 0.2351 0.2448 0.0304
0.85 150 0.4389 0.1928 0.0313
0.85 162 -0.4216 0.1903 0.0312
0.85 174 -0.1926 0.1908 0.0302
0.85 186 0.0065 0.2391 0.03
0.85 198 -0.0586 0.1938 0.03
0.85 210 -0.0857 0.2542 0.03
0.85 234 -0.0965 0.2483 0.0301
0.85 246 0.075 0.2765 0.03