CLAS Physics Database

Measurement E151M733

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: AUL
εL: 0.62
Q2: 0.101 GeV2
W: 1235.0 GeV
Ebeam: 2.2596 GeV
ε: 0.97

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 78.0 1.9964 2.2801
0.55 270.0 0.6002 2.1507
0.65 270.0 -0.5433 1.5533
0.65 282.0 0.3325 1.9983
0.75 258.0 -1.0014 1.8019
0.75 270.0 -1.1983 1.4707
0.75 282.0 -1.0967 1.6779
0.85 102.0 7.4246 2.9269
0.85 114.0 0.121 2.199
0.85 126.0 -0.4457 2.6969
0.85 138.0 -1.4777 2.4917
0.95 114.0 -0.266 6.914
0.95 126.0 6.6393 7.5786
0.95 138.0 1.7269 6.556
0.95 150.0 4.8356 7.6198
0.95 162.0 0.3079 8.4745
0.95 186.0 4.9082 7.6868
0.95 198.0 -8.6951 6.4303
0.35 66.0 0.4132 0.3803
0.35 78.0 0.5344 0.4274
0.45 78.0 0.5676 0.3541
0.55 78.0 -0.5667 0.314
0.55 270.0 -0.1161 0.4568
0.55 282.0 0.3926 0.4543
0.65 258.0 -0.1225 0.4476
0.65 270.0 -0.0778 0.407
0.65 282.0 -0.3307 0.322
0.75 102.0 0.0477 0.4877
0.75 246.0 -0.3104 0.4672
0.75 258.0 -0.6456 0.3295
0.75 270.0 -0.0598 0.2879
0.75 282.0 0.7196 0.3581
0.85 90.0 1.0059 0.5172
0.85 102.0 0.655 0.4757
0.85 114.0 0.4838 0.4373
0.85 126.0 0.441 0.395
0.85 246.0 -0.3592 0.4214
0.85 258.0 -0.238 0.4317
0.85 270.0 -0.3108 0.3752
0.95 102.0 -0.0224 0.6893
0.95 114.0 1.24 0.7283
0.95 126.0 0.1723 0.6693
0.95 138.0 -0.4473 0.7329
0.95 150.0 0.0818 0.7474
0.95 162.0 0.1303 0.7763
0.95 174.0 -0.2532 0.7568
0.95 186.0 -1.2298 0.7004