Measurement E151M1998

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:	0.1657
Q²:	0.0496 GeV²
W:	1355.0 GeV
E_beam:	2.2596 GeV
ε:	0.9585

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	0.5222	0.5838
0.35	78.0	-0.373	0.61
0.45	78.0	1.0484	1.381
0.45	294.0	-1.4287	1.0779
0.55	78.0	0.0469	1.4082
0.65	78.0	2.6528	1.3482
0.65	114.0	0.0507	1.5852
0.65	246.0	1.2828	1.0881
0.65	258.0	1.7667	1.2136
0.75	102.0	-1.8964	1.6616
0.75	114.0	-1.5063	1.4561
0.75	126.0	-0.0002	1.5822
0.75	138.0	0.3335	1.5477
0.75	150.0	2.2908	1.5372
0.75	222.0	-0.9625	1.4471
0.75	234.0	0.9722	1.1676
0.75	246.0	-0.8966	1.0558
0.75	258.0	0.2111	1.1922
0.75	270.0	0.2615	1.3256
0.85	114.0	-0.1706	1.6595
0.85	126.0	1.4706	1.6134
0.85	138.0	0.6052	1.7887
0.85	222.0	1.5516	1.615
0.85	234.0	-2.1885	1.1903
0.85	246.0	1.1487	1.2782
0.85	258.0	0.0556	1.1705
0.85	270.0	-1.9413	1.4513
0.95	234.0	-4.9089	4.613
0.35	294.0	-0.4139	0.6185
0.45	66.0	-0.4411	0.6743
0.45	78.0	0.2084	0.6514
0.45	282.0	-1.3539	0.6871
0.65	114.0	0.2978	0.7703
0.65	126.0	-0.2288	0.8047
0.65	246.0	-0.3131	0.6098
0.65	258.0	0.0385	0.6855
0.75	102.0	-0.2176	0.6694
0.75	114.0	-0.2257	0.6823
0.75	126.0	0.0997	0.7028
0.75	138.0	0.418	0.803
0.75	234.0	0.1488	0.653
0.75	246.0	-0.4786	0.5224
0.75	258.0	0.2104	0.6771
0.85	114.0	-0.9601	0.7694
0.85	126.0	-0.8069	0.8073
0.85	138.0	0.6463	0.7963
0.85	150.0	0.9096	0.7621
0.85	234.0	-1.6421	0.738
0.85	246.0	0.0198	0.6355
0.85	258.0	0.3512	0.5275
0.85	270.0	0.7818	0.6916

CLAS Physics Database