CLAS Physics Database

Measurement E151M2232

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: 0.7085
Q2: 0.5925 GeV2
W: 1385.0 GeV
Ebeam: 2.999 GeV
ε: 0.9026

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.55 78.0 0.4595 0.8111 0.0448
0.55 90.0 0.7058 0.8373 0.0593
0.55 270.0 -0.4883 0.8207 0.0464
0.65 78.0 1.3769 0.8246 0.1042
0.65 90.0 -0.7624 0.8088 0.0629
0.65 102.0 -0.2842 0.9574 0.0364
0.65 258.0 -1.4834 0.733 0.1117
0.75 78.0 -0.0396 0.8753 0.0301
0.75 90.0 0.8136 0.7182 0.0662
0.75 102.0 -0.4763 0.9303 0.0457
0.75 258.0 0.0408 0.9277 0.0301
0.75 282.0 -0.4192 0.8247 0.0427
0.75 294.0 1.2249 0.7391 0.0937
0.85 78.0 0.8429 0.8749 0.0681
0.85 90.0 0.1815 0.9324 0.0328
0.85 102.0 0.7103 0.8561 0.0596
0.85 114.0 0.9613 0.8427 0.0759
0.85 222.0 0.0133 0.8358 0.03
0.85 234.0 1.1856 0.7836 0.0911
0.85 246.0 0.744 0.7839 0.0617
0.85 270.0 -1.2107 0.696 0.0928
0.85 282.0 0.1055 0.6546 0.031
0.85 294.0 0.3852 0.7163 0.041
0.85 306.0 0.3768 0.6839 0.0406
0.85 318.0 0.3928 0.7358 0.0414
0.85 330.0 0.927 0.7614 0.0736
0.95 222.0 -0.8296 0.7807 0.0672
0.95 258.0 0.4343 0.8107 0.0435
0.95 270.0 0.2125 0.7011 0.0337
0.95 282.0 -0.0544 0.7743 0.0303