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Measurement E151M2481

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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 : 0.1435 GeV2
W : 1235 GeV
ε : 0.798
Ebeam : 1.0539 GeV
εL: 0.6489 

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
0.25 294 -0.3956 0.2439 0.031
0.35 282 -0.23 0.2156 0.0304
0.35 294 0.3324 0.2369 0.0307
0.45 270 0.4452 0.2087 0.0313
0.45 282 -0.1614 0.1858 0.0302
0.45 294 0.0097 0.2452 0.03
0.55 270 0.0302 0.1943 0.03
0.55 282 -0.0481 0.1771 0.03
0.55 294 0.2485 0.2417 0.0304
0.65 258 0.2291 0.1848 0.0303
0.65 270 -0.3701 0.1807 0.0309
0.65 282 -0.2912 0.1949 0.0306
0.65 294 -0.1344 0.2046 0.0301
0.75 258 0.0772 0.2322 0.03
0.75 270 0.0438 0.2274 0.03
0.75 282 0.2554 0.1898 0.0304
0.75 294 -0.1261 0.2183 0.0301
0.85 114 0.2029 0.2168 0.0303
0.85 138 -0.1405 0.2309 0.0301
0.85 150 0.1948 0.2121 0.0303
0.85 162 0.1296 0.2376 0.0301
0.85 174 0.3302 0.2344 0.0307
0.85 198 -0.5627 0.1878 0.032
0.85 210 0.2683 0.2368 0.0305
0.85 270 -0.1054 0.2244 0.0301
0.85 282 0.4553 0.2127 0.0314
0.95 114 -0.2746 0.2126 0.0305
0.95 126 0.0032 0.2239 0.03
0.95 138 0.3004 0.2249 0.0306
0.95 150 -0.0178 0.2076 0.03
0.95 162 0.3253 0.2413 0.0307
0.95 174 -0.2216 0.2164 0.0303
0.95 186 0.494 0.192 0.0316
0.95 198 -0.27 0.2418 0.0305
0.95 210 0.1827 0.2084 0.0302