Measurement E151M3131

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_LU
ε_L:	0.044
Q²:	0.0593 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7757

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.35	18.0	0.009	0.2565
0.35	270.0	0.2744	0.206
0.35	282.0	0.3818	0.2359
0.45	78.0	-0.0294	0.2215
0.45	270.0	-0.2524	0.2333
0.45	282.0	-0.1259	0.2501
0.45	294.0	0.0749	0.273
0.55	78.0	-0.1645	0.2384
0.55	126.0	0.0687	0.2319
0.55	138.0	-0.1145	0.265
0.55	210.0	0.2473	0.2645
0.55	222.0	-0.2394	0.2528
0.55	258.0	-0.0195	0.277
0.55	270.0	0.0597	0.2019
0.55	282.0	-0.0778	0.253
0.65	114.0	-0.453	0.2421
0.65	126.0	-0.1489	0.2353
0.65	198.0	-0.0871	0.2477
0.65	210.0	-0.0197	0.2336
0.65	222.0	-0.0139	0.2351
0.65	258.0	-0.1115	0.2803
0.65	282.0	-0.0708	0.2481
0.65	294.0	0.2559	0.2409
0.75	66.0	-0.0134	0.2218
0.75	126.0	-0.0921	0.2766
0.75	198.0	-0.2829	0.268
0.75	210.0	-0.1182	0.2432
0.75	222.0	0.1102	0.2152
0.75	234.0	-0.0588	0.2599
0.75	246.0	-0.1399	0.275
0.75	270.0	-0.0291	0.1977
0.75	282.0	-0.058	0.2073
0.75	294.0	0.0372	0.2426
0.85	114.0	0.1244	0.2474
0.85	126.0	0.3438	0.2273
0.85	186.0	0.2815	0.2519
0.85	198.0	0.1561	0.2649
0.85	210.0	0.0225	0.1869
0.85	222.0	-0.0674	0.2113
0.85	234.0	-0.2842	0.2503

CLAS Physics Database