Measurement E151M1549

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:	A_LL
ε_L:	0.3646
Q²:	0.2445 GeV²
W:	1385.0 GeV
E_beam:	1.3383 GeV
ε:	0.6963

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	258.0	0.339	1.0827
0.75	126.0	0.6992	1.2639
0.75	258.0	0.6954	1.0375
0.75	270.0	0.3882	0.9661
0.85	282.0	1.3329	0.8956
0.85	294.0	-0.0448	1.1577
0.55	258.0	-0.7161	0.8306
0.75	246.0	1.4049	0.8143
0.75	258.0	0.3353	0.8586
0.75	270.0	0.1727	0.8908
0.75	282.0	-1.5208	0.781
0.85	282.0	-0.4011	0.7366
0.85	294.0	-0.3349	0.8208
0.95	78.0	-0.1621	0.6739
0.95	258.0	-0.014	0.6995
0.95	270.0	-0.2257	0.6806
0.95	294.0	0.8736	0.6854

CLAS Physics Database