Measurement E151M1281

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:	0.5631
Q²:	0.1715 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.7407

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	42.0	-0.1815	0.7909
0.35	282.0	-0.9821	0.6535
0.45	270.0	0.2081	0.6094
0.45	282.0	-0.6827	0.674
0.55	270.0	0.8224	0.5621
0.55	282.0	0.6488	0.5899
0.55	294.0	-0.6621	0.6925
0.65	246.0	-0.0503	0.5924
0.65	258.0	-1.1468	0.5056
0.65	270.0	-0.436	0.4701
0.65	282.0	0.0144	0.6175
0.65	294.0	-0.0888	0.5678
0.75	126.0	1.1713	0.6695
0.75	138.0	-0.6178	0.6845
0.75	150.0	1.6146	0.6469
0.75	246.0	-0.1775	0.6548
0.75	258.0	-0.0161	0.5376
0.75	270.0	0.9291	0.5557
0.75	282.0	-0.2288	0.4975
0.75	294.0	0.4167	0.5604
0.85	114.0	-0.973	0.584
0.85	126.0	0.4981	0.5779
0.85	138.0	1.2912	0.5101
0.85	150.0	-0.3508	0.6057
0.85	162.0	0.318	0.5918
0.85	174.0	0.0918	0.6733
0.85	186.0	0.6684	0.6169
0.85	198.0	0.6529	0.6459
0.85	258.0	-0.9453	0.5876
0.85	270.0	0.349	0.4945
0.85	282.0	0.8733	0.4868
0.85	294.0	1.2492	0.5525
0.95	66.0	-0.1474	0.6126
0.95	114.0	-0.1731	0.5973
0.95	126.0	0.2838	0.4783
0.95	138.0	1.0895	0.4719
0.95	150.0	0.8592	0.4543
0.95	162.0	-0.3619	0.545
0.95	174.0	0.5798	0.4493
0.95	186.0	0.0023	0.5331
0.95	198.0	0.8305	0.4902

CLAS Physics Database