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Measurement E151M2931

Experiment: EG4
Year: 2016

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).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.2444
Q2: 0.0415 GeV2
W: 1265.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9682

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.25 306.0 -0.0572 0.2528 0.03
0.35 78.0 0.3316 0.1818 0.0307
0.35 294.0 -0.2239 0.2655 0.0303
0.35 306.0 -0.1292 0.2555 0.0301
0.45 66.0 -0.0335 0.2327 0.03
0.45 78.0 0.0287 0.1574 0.03
0.45 90.0 -0.0201 0.193 0.03
0.45 294.0 0.1278 0.2471 0.0301
0.55 78.0 0.052 0.1611 0.03
0.55 90.0 -0.0101 0.1554 0.03
0.55 102.0 -0.0746 0.2558 0.03
0.55 258.0 0.3498 0.2374 0.0308
0.55 270.0 0.1134 0.1951 0.0301
0.55 282.0 0.3624 0.2602 0.0309
0.65 78.0 -0.4408 0.2256 0.0313
0.65 90.0 0.265 0.163 0.0305
0.65 102.0 0.2282 0.2481 0.0303
0.65 246.0 -0.1819 0.175 0.0302
0.65 258.0 0.1842 0.1625 0.0302
0.65 270.0 0.1346 0.1514 0.0301
0.75 102.0 -0.1028 0.2763 0.0301
0.75 114.0 -0.191 0.2228 0.0302
0.75 126.0 -0.3256 0.2196 0.0307
0.75 138.0 -0.0329 0.2506 0.03
0.75 150.0 0.4814 0.197 0.0315
0.75 222.0 0.2336 0.2453 0.0304
0.75 234.0 -0.0749 0.1819 0.03
0.75 246.0 0.1286 0.1595 0.0301
0.75 258.0 -0.0015 0.1529 0.03
0.75 270.0 0.288 0.1836 0.0305
0.85 114.0 0.5532 0.1912 0.032
0.85 126.0 0.1736 0.203 0.0302
0.85 138.0 -0.1879 0.1672 0.0302
0.85 150.0 -0.2769 0.1581 0.0305
0.85 162.0 0.1374 0.2047 0.0301
0.85 174.0 0.0142 0.1975 0.03
0.85 186.0 0.237 0.246 0.0304
0.85 222.0 0.3205 0.2192 0.0307
0.85 234.0 -0.0384 0.1981 0.03
0.85 246.0 0.2001 0.1745 0.0303
0.85 258.0 0.0658 0.1703 0.03
0.95 138.0 0.4355 0.2237 0.0312
0.95 150.0 -0.2472 0.2504 0.0304
0.95 162.0 -0.125 0.2566 0.0301
Created in SINP MSU, CLAS Collaboration