CLAS Physics Database

Measurement E151M207

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: 0.5635
Q2: 0.0707 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9333

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 270.0 0.1199 0.3635
0.55 282.0 0.2696 0.2829
0.65 258.0 -0.7354 0.3668
0.65 270.0 0.2861 0.3146
0.65 282.0 0.103 0.3265
0.75 258.0 -0.1429 0.3603
0.75 270.0 0.0768 0.3235
0.85 126.0 -0.3536 0.5926
0.85 138.0 -0.0248 0.6142
0.85 150.0 0.3627 0.8485
0.85 162.0 0.141 0.6996
0.85 186.0 -0.0523 0.6752
0.85 270.0 -0.5519 0.4362
0.95 126.0 0.4953 0.7448
0.95 138.0 0.7324 0.6974
0.95 150.0 -0.3623 0.4506
0.95 162.0 1.0718 0.8413
0.95 174.0 -0.2869 0.4446
0.95 186.0 1.0705 0.8095
0.95 210.0 -0.1737 0.4875
0.75 282.0 1.1305 0.4235
0.85 126.0 -0.0345 0.4458
0.85 138.0 0.1871 0.4729
0.85 150.0 -0.2338 0.4296
0.85 162.0 0.7607 0.4366
0.85 186.0 -0.8055 0.4023
0.85 258.0 0.1721 0.4102
0.95 126.0 -0.1252 0.3783
0.95 138.0 -0.1222 0.354
0.95 162.0 0.1472 0.352
0.95 174.0 0.0367 0.3743
0.95 186.0 -0.1173 0.3898
0.95 198.0 0.1604 0.3874