CLAS Physics Database

Measurement E151M1653

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: ALL
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] ALL uncertainty
0.55 138.0 -0.8362 0.9853
0.55 150.0 0.9724 0.9455
0.55 222.0 -0.4077 0.8779
0.65 126.0 0.3661 0.9799
0.65 222.0 -0.5391 0.9171
0.65 234.0 0.0043 1.0673
0.75 150.0 0.0842 0.8806
0.75 222.0 0.0772 0.9663
0.75 234.0 -0.1066 0.9869
0.75 246.0 -0.9466 0.8102
0.85 138.0 -0.7085 0.9319
0.85 234.0 -0.4419 0.8476
0.85 246.0 0.3219 0.8568
0.55 234.0 0.1507 1.2447
0.65 222.0 0.7569 1.1684
0.65 234.0 -2.2372 0.8836
0.75 150.0 1.6998 1.2495
0.75 234.0 1.6445 0.9752
0.75 246.0 -0.8126 0.8938
0.85 222.0 0.8259 0.9256
0.85 234.0 -0.7214 1.2069
0.85 246.0 -1.6418 0.7495