CLAS Physics Database

Measurement E151M3241

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: 0.4286
Q2: 0.205 GeV2
W: 1385.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9171

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 102.0 0.3411 0.2312
0.65 246.0 -0.2969 0.2505
0.65 258.0 -0.2671 0.2219
0.75 90.0 0.06 0.21
0.75 102.0 -0.0524 0.1854
0.75 114.0 0.023 0.2213
0.75 246.0 0.017 0.2257
0.75 258.0 -0.1366 0.2166
0.75 270.0 -0.2563 0.2484
0.85 90.0 0.0246 0.2563
0.85 102.0 0.0231 0.1997
0.85 114.0 0.0468 0.2035
0.85 126.0 -0.2463 0.2076
0.85 222.0 -0.0919 0.2259
0.85 234.0 0.0147 0.2475
0.85 246.0 -0.3036 0.238
0.85 258.0 -0.0158 0.2153
0.85 270.0 0.2301 0.2266
0.85 282.0 -0.1421 0.2148
0.85 294.0 0.1357 0.2404
0.95 114.0 0.0432 0.2556
0.95 234.0 -0.1142 0.2358
0.95 246.0 0.5219 0.2295
0.95 258.0 -0.2214 0.2382
0.95 270.0 -0.137 0.2211
0.95 282.0 -0.5083 0.2201
0.95 294.0 -0.0032 0.2086
0.25 66.0 0.0174 0.2517
0.75 90.0 0.2101 0.2225
0.75 102.0 -0.1476 0.2177
0.75 114.0 0.3971 0.1985
0.75 234.0 -0.1115 0.2597
0.75 246.0 -0.3352 0.2549
0.75 258.0 -0.0759 0.2378
0.75 270.0 0.3308 0.237
0.85 90.0 0.0067 0.2268
0.85 102.0 0.2217 0.2132
0.85 114.0 0.1802 0.199
0.85 126.0 0.0538 0.2502
0.85 234.0 -0.1489 0.2204
0.85 258.0 0.1315 0.2234
0.85 270.0 -0.4056 0.2082
0.85 282.0 0.3283 0.2323
0.95 114.0 0.1415 0.2448
0.95 234.0 0.1648 0.2342
0.95 246.0 -0.0384 0.2563
0.95 270.0 0.2869 0.2529
0.95 282.0 0.2887 0.2096
0.95 294.0 -0.025 0.249