CLAS Physics Database

Measurement E151M2130

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: 0.0341
Q2: 0.0415 GeV2
W: 1655.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8403

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.45 78.0 1.0737 1.079 0.1031
0.45 270.0 1.0232 0.9203 0.0987
0.55 222.0 0.5973 1.0931 0.0626
0.55 258.0 -1.0978 0.993 0.1053
0.55 270.0 0.3552 0.9216 0.0443
0.65 126.0 -0.0157 1.185 0.03
0.65 198.0 0.644 1.1662 0.0664
0.65 210.0 -2.9688 2.9688 0.2745
0.75 66.0 -0.1599 1.2263 0.0334
0.75 210.0 1.4692 1.2121 0.1383
0.75 234.0 1.4445 1.1216 0.1361
0.75 270.0 1.1556 1.026 0.1104
0.75 282.0 -0.774 0.891 0.0772
0.85 114.0 -0.1214 1.5075 0.032
0.85 210.0 -1.1254 1.0975 0.1077
0.85 222.0 0.4759 1.2848 0.053
0.35 78.0 -0.8194 0.6661 0.0612
0.45 270.0 -0.836 0.7394 0.0621
0.45 282.0 -0.9553 0.636 0.069
0.55 222.0 1.0405 0.8925 0.074
0.55 258.0 -0.7708 0.6675 0.0584
0.55 270.0 -0.8347 0.603 0.062
0.65 126.0 -0.4474 0.6179 0.0418
0.65 210.0 -1.3064 0.8052 0.0901
0.65 222.0 -0.4974 0.9023 0.0441
0.75 114.0 -1.1695 0.7875 0.0818
0.75 210.0 -1.1187 0.7532 0.0787
0.75 222.0 0.9898 0.8399 0.071
0.75 270.0 -0.5178 0.7782 0.0451
0.75 282.0 -0.7284 0.6363 0.0561
0.85 102.0 -0.4915 0.9188 0.0438
0.85 126.0 -1.9303 0.7328 0.1291
0.85 210.0 0.3337 0.8113 0.037
0.85 222.0 -1.1702 0.9517 0.0818