Measurement E151M1602

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:	0.1451
Q²:	0.1205 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.6854

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	138.0	-0.7551	0.8381
0.55	222.0	-0.2612	0.7335
0.55	234.0	1.0674	0.9307
0.55	246.0	-0.4158	0.61
0.55	258.0	0.1059	0.7076
0.65	126.0	0.9706	0.5878
0.65	138.0	0.8875	0.6153
0.65	150.0	-1.3984	0.7469
0.65	222.0	-0.2617	0.6954
0.65	234.0	-0.5423	0.6483
0.65	246.0	-0.1607	0.5364
0.65	258.0	0.3308	0.559
0.75	126.0	-0.9957	0.6291
0.75	138.0	0.1232	0.6315
0.75	150.0	-0.2973	0.835
0.75	210.0	1.2939	0.9112
0.75	222.0	0.8134	1.1923
0.75	234.0	-0.6033	0.6641
0.75	246.0	-0.0604	0.5474
0.75	258.0	0.5364	0.4741
0.85	126.0	1.5118	0.9844
0.85	150.0	-0.0691	0.771
0.85	234.0	-0.3894	0.5882
0.85	246.0	0.5629	0.4692
0.85	258.0	0.3964	0.5452
0.85	270.0	1.0971	0.4989
0.95	102.0	-0.2672	0.7819
0.95	114.0	0.5703	0.5634
0.95	246.0	-0.3616	0.566
0.95	258.0	0.1725	0.6262
0.95	270.0	1.2065	0.7475

CLAS Physics Database