CLAS Physics Database

Measurement E151M85

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: AUL
εL: 0.0321
Q2: 0.0084 GeV2
W: 1325.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8418

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 42.0 1.2304 0.8181
0.45 54.0 -0.9158 0.6
0.55 42.0 -0.0456 0.6672
0.55 54.0 0.7665 0.8179
0.55 222.0 -0.1476 0.6984
0.55 234.0 0.4609 0.5998
0.55 246.0 0.0681 0.5635
0.55 258.0 -0.7315 0.5571
0.65 42.0 1.049 0.7694
0.65 210.0 2.047 0.7814
0.65 222.0 0.8905 0.7378
0.65 234.0 0.0684 0.4527
0.65 246.0 0.2999 0.5151
0.65 258.0 0.4941 0.5623
0.75 150.0 -1.1637 0.6055
0.75 174.0 -0.398 0.7121
0.75 222.0 -0.0392 0.5878
0.75 234.0 0.5458 0.4952
0.75 246.0 0.3171 0.5206
0.75 258.0 0.1379 0.5864
0.85 222.0 0.4456 0.6468
0.85 234.0 -0.1397 0.5584
0.85 246.0 0.6709 0.5452
0.85 258.0 1.1065 0.6737