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Measurement E151M2698

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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 : 0.0171 GeV2
W : 1295 GeV
ε : 0.9216
Ebeam : 1.3383 GeV
εL: 0.084 

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 0.2022 0.1923 0.0305
0.35 42 0.3215 0.1773 0.0309
0.35 54 0.1715 0.1899 0.0302
0.55 234 -0.8435 0.2063 0.0344
0.55 246 0.0818 0.2198 0.03
0.55 258 -0.5222 0.185 0.0318
0.55 270 -0.2805 0.2135 0.0305
0.65 138 -0.1826 0.2297 0.0302
0.65 150 0.1151 0.2428 0.0301
0.65 162 0.2108 0.251 0.0303
0.65 222 -0.0169 0.2236 0.03
0.65 234 -0.1017 0.1954 0.0301
0.65 246 0.1421 0.1493 0.0301
0.65 258 0.1821 0.149 0.0302
0.65 270 -0.301 0.1869 0.0306
0.75 126 0.3639 0.2385 0.0309
0.75 138 0.2371 0.2026 0.0304
0.75 150 0.3888 0.2186 0.031
0.75 162 0.0306 0.2273 0.03
0.75 174 0.0177 0.2556 0.03
0.75 222 -0.038 0.2158 0.03
0.75 234 -0.2144 0.1507 0.0303
0.75 246 -0.0566 0.1561 0.03
0.75 258 -0.1884 0.1732 0.0302
0.75 270 -0.1302 0.2184 0.0301
0.85 138 -0.1201 0.2379 0.0301
0.85 162 0.0465 0.239 0.03
0.85 210 -0.1204 0.2338 0.0301
0.85 222 -0.473 0.2043 0.0315
0.85 234 0.1938 0.1942 0.0302
0.85 246 -0.2301 0.1768 0.0304
0.85 258 0.2266 0.1594 0.0303
0.85 270 0.0059 0.2405 0.03
0.45 42 0.0292 0.3807 0.03
0.55 234 -0.225 0.3705 0.0303
0.55 246 -0.3065 0.2838 0.0306
0.55 258 -0.237 0.3699 0.0304
0.55 270 -0.0578 0.352 0.03
0.65 126 0.1533 0.3916 0.0302
0.65 138 -0.1897 0.3394 0.0302
0.65 150 -0.4049 0.3119 0.0311
0.65 162 0.2465 0.3683 0.0304
0.65 222 -0.036 0.3917 0.03
0.65 234 -0.4559 0.2192 0.0314
0.65 246 -0.4913 0.2022 0.0316
0.65 258 0.1135 0.2591 0.0301
0.65 270 -0.0411 0.3167 0.03
0.75 126 -0.0033 0.3273 0.03
0.75 138 -0.0513 0.3661 0.03
0.75 150 -0.0605 0.3151 0.03
0.75 162 -0.1421 0.3204 0.0301
0.75 210 -0.0251 0.4119 0.03
0.75 222 0.9264 0.1399 0.0353
0.75 234 -0.3697 0.2337 0.0309
0.75 246 0.2322 0.226 0.0304
0.75 258 0.2628 0.225 0.0305
0.75 270 -0.6626 0.2131 0.0328
0.85 138 -0.4119 0.3378 0.0311
0.85 150 0.4559 0.3007 0.0314
0.85 162 0.4108 0.3071 0.0311
0.85 174 0.3568 0.3113 0.0308
0.85 210 0.1525 0.3444 0.0302
0.85 222 0.2452 0.2665 0.0304
0.85 234 -0.011 0.257 0.03
0.85 246 0.2903 0.2181 0.0306
0.85 258 0.3857 0.2484 0.031
0.85 270 -0.3961 0.2491 0.031