CLAS Physics Database

Measurement E151M30

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: 0.2767
Q2: 0.0415 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8908

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 0.4434 0.5518
0.15 54.0 0.1427 0.5779
0.25 42.0 0.186 0.3841
0.25 54.0 -0.848 0.381
0.35 42.0 -0.1911 0.3947
0.35 54.0 0.2019 0.4787
0.35 282.0 -0.9431 0.4523
0.45 270.0 0.1382 0.4482
0.45 282.0 0.1646 0.3861
0.55 246.0 -0.6091 0.4846
0.55 258.0 -0.299 0.3469
0.55 270.0 0.0002 0.2782
0.55 282.0 0.0115 0.3666
0.65 246.0 -0.7645 0.3234
0.65 258.0 0.1358 0.2813
0.65 270.0 0.2939 0.265
0.65 282.0 0.4174 0.3484
0.65 294.0 0.0755 0.5045
0.75 150.0 -0.0355 0.4737
0.75 162.0 0.4821 0.579
0.75 174.0 0.5823 0.5025
0.75 186.0 0.1984 0.5021
0.75 198.0 0.0715 0.5708
0.75 210.0 -0.8951 0.4526
0.75 234.0 -0.2786 0.4292
0.75 246.0 0.1782 0.3549
0.75 258.0 0.1478 0.3032
0.75 270.0 -0.0634 0.2899
0.75 282.0 0.4461 0.372
0.85 126.0 0.0072 0.4965
0.85 138.0 -0.0945 0.3906
0.85 150.0 -0.5791 0.3051
0.85 162.0 -0.4788 0.2586
0.85 174.0 0.192 0.3099
0.85 186.0 0.1643 0.3467
0.85 198.0 -0.2802 0.3486
0.85 210.0 -1.0023 0.3492
0.85 222.0 0.0569 0.4545
0.85 234.0 0.4326 0.471
0.85 246.0 0.3293 0.3861
0.85 258.0 -0.0967 0.3223
0.85 270.0 0.1815 0.3378
0.95 150.0 -0.7092 0.3069
0.95 162.0 -0.3615 0.3871
0.95 174.0 -0.166 0.3507
0.95 186.0 -0.6567 0.3065
0.95 198.0 -0.1143 0.4128