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Measurement E151M3017

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: 0.3982
Q2: 0.2445 GeV2
W: 1415.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8633

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 66.0 -0.0305 0.2705 0.03
0.35 294.0 -0.3552 0.2358 0.0308
0.55 102.0 0.6352 0.21 0.0326
0.65 90.0 -0.1677 0.2589 0.0302
0.65 102.0 -0.0687 0.2222 0.03
0.65 114.0 0.1669 0.2521 0.0302
0.65 246.0 -0.0556 0.2632 0.03
0.65 270.0 0.0878 0.2214 0.0301
0.75 90.0 0.2206 0.2332 0.0303
0.75 102.0 0.1645 0.2642 0.0302
0.75 114.0 -0.1629 0.234 0.0302
0.75 126.0 0.1646 0.2623 0.0302
0.75 138.0 0.2357 0.2795 0.0304
0.75 234.0 -0.5522 0.2021 0.032
0.75 246.0 -0.2163 0.2158 0.0303
0.75 258.0 -0.0738 0.2186 0.03
0.75 270.0 0.4032 0.217 0.0311
0.75 282.0 -0.1505 0.2551 0.0302
0.85 66.0 -0.0719 0.2592 0.03
0.85 90.0 -0.2662 0.2787 0.0305
0.85 102.0 -0.178 0.2141 0.0302
0.85 114.0 0.105 0.2198 0.0301
0.85 126.0 0.195 0.2425 0.0303
0.85 138.0 0.0155 0.243 0.03
0.85 222.0 -0.1676 0.277 0.0302
0.85 234.0 0.1088 0.2224 0.0301
0.85 246.0 -0.2804 0.2161 0.0305
0.85 258.0 -0.0297 0.2191 0.03
0.85 270.0 0.0123 0.2291 0.03
0.85 282.0 -0.1777 0.2092 0.0302
0.85 294.0 -0.3629 0.2231 0.0309
0.95 66.0 0.2465 0.2518 0.0304
0.95 234.0 -0.2954 0.229 0.0306
0.95 246.0 -0.1796 0.2571 0.0302
0.95 258.0 -0.4451 0.207 0.0313
0.95 282.0 -0.1695 0.2179 0.0302
0.95 294.0 -0.1169 0.2341 0.0301
Created in SINP MSU, CLAS Collaboration