Measurement E151M1264

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:	0.0504
Q²:	0.0084 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8979

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	246.0	0.8002	0.5489	0.0951
0.55	258.0	0.3873	0.56	0.053
0.55	270.0	0.7519	0.5323	0.09
0.65	234.0	-0.0994	0.5842	0.032
0.65	246.0	0.4924	0.4267	0.0631
0.65	258.0	-0.002	0.406	0.03
0.65	270.0	0.0204	0.5708	0.0301
0.75	162.0	0.3714	0.7017	0.0515
0.75	174.0	0.8915	0.5975	0.1049
0.75	186.0	1.5033	0.6021	0.1722
0.75	222.0	0.8261	0.6495	0.0979
0.75	234.0	-0.9824	0.4321	0.1148
0.75	246.0	-0.5832	0.4385	0.0723
0.75	258.0	0.1937	0.4213	0.0371
0.75	270.0	0.1057	0.6216	0.0323
0.85	234.0	1.0729	0.5568	0.1247
0.85	246.0	0.3159	0.4968	0.0466

CLAS Physics Database