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
0.45 282.0 -0.0204 0.1949
0.55 270.0 -0.0671 0.1779
0.55 282.0 -0.2704 0.201
0.65 258.0 -0.1207 0.1835
0.65 270.0 -0.2145 0.161
0.65 282.0 0.3285 0.1525
0.75 258.0 0.0103 0.1772
0.75 270.0 -0.1639 0.1977
0.85 114.0 -0.7599 0.1743
0.85 126.0 0.4395 0.1809
0.85 138.0 0.0809 0.1679
0.85 150.0 0.082 0.2095
0.85 162.0 0.0918 0.1638
0.85 174.0 -0.2089 0.1846
0.85 186.0 -0.1708 0.1789
0.85 198.0 0.2156 0.1809
0.85 210.0 0.3159 0.1794
0.95 138.0 0.0879 0.2785
0.95 150.0 -0.1003 0.2339
0.95 162.0 -0.6256 0.2482
0.95 174.0 0.1766 0.2303
0.95 186.0 -0.0548 0.2537
0.95 198.0 -0.3755 0.2601
0.85 270.0 -0.1711 0.3595
0.95 138.0 0.3728 0.2746
0.95 150.0 -0.2448 0.3611
0.95 162.0 0.452 0.2417
0.95 174.0 0.1992 0.3552
0.95 186.0 0.0497 0.31
0.95 198.0 -0.0465 0.3116