CLAS Physics Database

Measurement E151M999

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: 0.7915
Q2: 0.5925 GeV2
W: 1355.0 GeV
Ebeam: 2.999 GeV
ε: 0.9092

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 78.0 0.0931 0.7348
0.65 90.0 -0.6474 0.6589
0.65 102.0 -0.2405 0.753
0.65 258.0 -0.3161 0.6742
0.65 282.0 1.0976 0.8123
0.75 78.0 -0.1401 0.6573
0.75 90.0 -0.2865 0.6416
0.75 102.0 0.4746 0.7962
0.75 246.0 0.2159 0.7695
0.75 258.0 -0.4444 0.5795
0.75 270.0 0.379 0.7024
0.75 282.0 -0.1152 0.6976
0.75 294.0 -0.1644 0.696
0.85 78.0 0.3948 0.7654
0.85 102.0 -0.1919 0.7267
0.85 246.0 0.5377 0.6963
0.85 258.0 -0.1371 0.5102
0.85 270.0 2.0678 0.6761
0.85 282.0 0.5772 0.7137
0.85 294.0 0.7992 0.8194
0.85 306.0 1.0895 0.7746
0.85 318.0 -0.4844 0.6374
0.95 246.0 1.0234 0.7718
0.95 270.0 -0.9418 0.4866
0.95 282.0 -0.3456 0.5965
0.95 294.0 -1.2145 0.4599