Measurement E151M1879

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:	0.0579
Q²:	0.0593 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.8242

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	-1.3487	0.8512
0.35	270.0	-0.2891	0.7663
0.45	78.0	0.2724	0.8087
0.45	90.0	-0.2969	0.97
0.45	258.0	0.3092	0.9593
0.45	270.0	0.0392	0.7181
0.45	282.0	-0.5156	0.7735
0.55	78.0	-0.3056	0.9309
0.55	90.0	-0.3147	0.9958
0.55	114.0	-1.0394	0.9195
0.55	126.0	-1.0224	0.8832
0.55	138.0	0.0001	0.8814
0.55	210.0	0.0124	0.9531
0.55	222.0	-0.3234	0.827
0.55	234.0	-0.2474	0.942
0.55	258.0	-0.3583	0.8821
0.55	270.0	0.7171	0.7043
0.55	282.0	-0.9197	0.7587
0.65	102.0	-0.1445	0.949
0.65	114.0	2.4325	0.6493
0.65	126.0	-1.1341	0.7866
0.65	138.0	0.9243	0.7493
0.65	150.0	-0.3101	0.9469
0.65	186.0	-2.1777	0.7605
0.65	198.0	-0.7547	0.7687
0.65	210.0	-0.1263	0.8466
0.65	222.0	-0.7642	0.7639
0.65	234.0	0.2102	0.9319
0.65	246.0	0.12	0.8088
0.65	258.0	-1.866	0.7516
0.65	282.0	0.0161	0.777
0.65	294.0	-0.9917	0.6919
0.75	66.0	2.3267	0.5674
0.75	78.0	0.9468	0.9653
0.75	126.0	1.1055	0.7814
0.75	138.0	-0.5912	0.8454
0.75	150.0	-0.0911	0.9391
0.75	198.0	-2.1727	0.6667
0.75	210.0	0.0214	0.7545
0.75	222.0	-1.3432	0.6467
0.75	234.0	0.0754	0.7038
0.75	246.0	0.3439	0.8971
0.75	270.0	-0.3804	0.7811
0.75	282.0	-0.2037	0.6208
0.75	294.0	0.0893	0.6514
0.85	102.0	0.3739	0.683
0.85	114.0	-0.293	0.7283
0.85	126.0	0.9674	0.7927
0.85	198.0	-1.258	0.8442
0.85	210.0	-0.5018	0.6642
0.85	222.0	1.0409	0.598
0.85	234.0	-0.1074	0.6563
0.85	246.0	0.1546	0.7658
0.95	222.0	-1.0258	0.7896

CLAS Physics Database