CLAS Physics Database

Measurement E151M2649

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: 0.4272
Q2: 0.0496 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9438

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 282.0 -0.0204 0.1949 0.0301
0.55 270.0 -0.0671 0.1779 0.0307
0.55 282.0 -0.2704 0.201 0.0305
0.65 258.0 -0.1207 0.1835 0.0304
0.65 270.0 -0.2145 0.161 0.0304
0.65 282.0 0.3285 0.1525 0.0307
0.75 258.0 0.0103 0.1772 0.0305
0.75 270.0 -0.1639 0.1977 0.0303
0.85 114.0 -0.7599 0.1743 0.0336
0.85 126.0 0.4395 0.1809 0.0313
0.85 138.0 0.0809 0.1679 0.0313
0.85 150.0 0.082 0.2095 0.0301
0.85 162.0 0.0918 0.1638 0.0302
0.85 174.0 -0.2089 0.1846 0.0303
0.85 186.0 -0.1708 0.1789 0.0304
0.85 198.0 0.2156 0.1809 0.0304
0.85 210.0 0.3159 0.1794 0.0308
0.95 138.0 0.0879 0.2785 0.0301
0.95 150.0 -0.1003 0.2339 0.0301
0.95 162.0 -0.6256 0.2482 0.0325
0.95 174.0 0.1766 0.2303 0.0302
0.95 186.0 -0.0548 0.2537 0.03
0.95 198.0 -0.3755 0.2601 0.0309
0.85 270.0 -0.1711 0.3595 0.0302
0.95 138.0 0.3728 0.2746 0.0309
0.95 150.0 -0.2448 0.3611 0.0304
0.95 162.0 0.452 0.2417 0.0313
0.95 174.0 0.1992 0.3552 0.0303
0.95 186.0 0.0497 0.31 0.03
0.95 198.0 -0.0465 0.3116 0.03