CLAS Physics Database

Measurement E151M2384

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: 0.0543
Q2: 0.101 GeV2
W: 1775.0 GeV
Ebeam: 2.999 GeV
ε: 0.8592

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.35 270.0 0.4372 1.0458
0.55 114.0 -0.8415 0.9651
0.55 126.0 0.2565 0.9904
0.55 138.0 -1.5065 1.0148
0.65 114.0 -0.1849 1.0487
0.65 126.0 0.0985 0.9346
0.65 138.0 -0.621 0.9527
0.65 186.0 -0.1075 0.9568
0.65 198.0 -0.8091 1.0839
0.65 222.0 -0.6127 1.0625
0.65 282.0 -0.262 0.8383
0.65 294.0 0.4347 0.9909
0.75 90.0 -0.1211 1.0476
0.75 102.0 -0.974 0.8064
0.75 114.0 -0.604 1.0565
0.75 138.0 1.3085 0.9901
0.75 186.0 -0.0023 0.8872
0.75 198.0 0.1537 0.8527
0.75 210.0 -0.1833 0.7191
0.75 222.0 -0.6308 0.8398
0.75 234.0 -0.6521 1.1222
0.75 258.0 -0.4376 0.959
0.75 270.0 -0.1733 0.8808
0.75 282.0 0.2486 0.8003
0.75 294.0 0.6285 0.9632
0.85 90.0 -0.4384 0.8695
0.85 102.0 -0.8255 0.7605
0.85 114.0 0.0296 0.7697
0.85 126.0 0.0054 0.7784
0.85 138.0 -0.2905 1.0412
0.85 174.0 -0.232 0.9581
0.85 186.0 -0.3372 0.6784
0.85 198.0 0.4312 0.7291
0.85 210.0 -0.526 0.7502
0.85 222.0 1.1882 0.7265
0.85 234.0 0.5971 0.8198
0.85 246.0 -1.0209 0.9565
0.85 270.0 0.7418 0.9685
0.85 282.0 -1.0051 0.7631
0.95 102.0 -2.0645 0.8163
0.95 186.0 0.5465 0.9329
0.95 198.0 -0.9168 0.8357
0.95 210.0 0.1083 0.7866
0.95 222.0 -0.1661 0.8884
0.95 234.0 -0.2084 0.9261