CLAS Physics Database

Measurement E151M2875

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: 0.0474
Q2: 0.0593 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6024

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 138.0 -0.4101 0.261
0.55 150.0 0.4825 0.2437
0.55 222.0 0.3551 0.2371
0.65 126.0 0.3907 0.2628
0.65 222.0 -0.0269 0.2594
0.65 234.0 -0.0733 0.2899
0.75 150.0 -0.1651 0.247
0.75 222.0 -0.1155 0.2688
0.75 234.0 -0.2731 0.2709
0.75 246.0 0.0814 0.2328
0.85 138.0 0.5483 0.2408
0.85 234.0 0.3032 0.2454
0.85 246.0 -0.1864 0.2475
0.55 234.0 -0.3931 0.3758
0.65 222.0 -0.149 0.3679
0.65 234.0 -0.1664 0.3224
0.75 150.0 0.0559 0.405
0.75 234.0 0.1509 0.3665
0.75 246.0 -0.4444 0.2707
0.85 222.0 0.3936 0.2951
0.85 234.0 0.2978 0.3692
0.85 246.0 -0.2304 0.2822