CLAS Physics Database

Measurement E151M3431

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: 0.8865
Q2: 0.5925 GeV2
W: 1325.0 GeV
Ebeam: 2.999 GeV
ε: 0.9152

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 78.0 -0.4262 0.2367
0.55 282.0 -0.1889 0.2562
0.65 90.0 0.3241 0.2502
0.65 282.0 0.094 0.2632
0.75 66.0 -0.0805 0.2467
0.75 78.0 -0.09 0.2551
0.75 258.0 -0.1207 0.2227
0.75 282.0 0.1267 0.2066
0.75 294.0 0.296 0.2185
0.75 306.0 -0.065 0.2809
0.85 66.0 0.2402 0.2441
0.85 78.0 -0.2135 0.2351
0.85 90.0 -0.4607 0.2093
0.85 102.0 0.0147 0.2532
0.85 114.0 -0.1309 0.2885
0.85 234.0 0.2377 0.247
0.85 258.0 -0.2139 0.2454
0.85 270.0 -0.0943 0.2321
0.85 282.0 0.0892 0.2407
0.85 294.0 0.0401 0.2569
0.85 306.0 -0.1692 0.2692
0.85 318.0 -0.034 0.2754
0.85 330.0 0.1655 0.2578
0.95 234.0 -0.1108 0.2806
0.95 246.0 0.3054 0.2454
0.95 258.0 0.0201 0.2659
0.95 270.0 -0.0737 0.2738