CLAS Physics Database

Measurement E151M940

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: 1.071
Q2: 0.1715 GeV2
W: 1205.0 GeV
Ebeam: 2.999 GeV
ε: 0.9793

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 282.0 0.6642 0.6198
0.65 270.0 -0.5155 0.5294
0.65 282.0 -0.2395 0.4442
0.65 294.0 0.5856 0.6683
0.75 270.0 0.4373 0.5535
0.75 282.0 -0.593 0.4182
0.85 66.0 0.5415 0.7043
0.85 78.0 -0.0636 0.4671
0.85 90.0 -1.0681 0.3991
0.85 102.0 0.3662 0.5489
0.85 114.0 -1.1459 0.4717
0.85 270.0 0.3475 0.6355
0.85 282.0 0.1567 0.683
0.95 54.0 0.504 0.6611
0.95 78.0 0.0028 0.5029
0.95 90.0 -0.3443 0.4334
0.95 102.0 0.3055 0.5195
0.95 114.0 0.3605 0.5958
0.95 126.0 -0.5623 0.4358
0.95 138.0 1.0841 0.8952