CLAS Physics Database

Measurement E151M3355

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: 0.0556
Q2: 0.0707 GeV2
W: 1655.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8306

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 270.0 -0.0959 0.1654
0.55 126.0 -0.1977 0.258
0.55 258.0 -0.0771 0.262
0.55 270.0 -0.0061 0.2551
0.55 282.0 -0.302 0.2323
0.65 222.0 -0.2426 0.2239
0.65 294.0 -0.153 0.2198
0.75 66.0 -0.1201 0.2618
0.75 210.0 -0.1584 0.2498
0.75 222.0 -0.4738 0.1867
0.75 270.0 0.3276 0.2153
0.75 282.0 0.0299 0.2021
0.85 102.0 0.4124 0.2316
0.85 114.0 -0.1679 0.2099
0.85 126.0 0.0348 0.2656
0.85 210.0 -0.2094 0.2207
0.85 222.0 0.0585 0.2111
0.45 282.0 0.0227 0.2515
0.55 126.0 -0.4876 0.2115
0.55 222.0 -0.0048 0.252
0.55 234.0 0.0118 0.2642
0.55 258.0 0.0814 0.2406
0.55 270.0 -0.1645 0.2364
0.65 126.0 -0.1853 0.2231
0.65 138.0 -0.0555 0.2533
0.75 210.0 -0.1876 0.2318
0.75 222.0 0.5038 0.2087
0.75 234.0 -0.0681 0.211
0.75 282.0 -0.1934 0.2057
0.75 294.0 -0.4833 0.2092
0.85 102.0 0.0978 0.2037
0.85 114.0 -0.1441 0.2028
0.85 126.0 -0.0839 0.2339
0.85 198.0 -0.1807 0.2469
0.85 210.0 -0.3078 0.1792
0.85 222.0 -0.0762 0.2079
0.85 246.0 -0.0876 0.2816