Measurement E151M1627

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:	0.0158
Q²:	0.0143 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6921

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	30.0	-0.4411	1.0893	0.0395
0.45	42.0	0.6437	0.7699	0.0487
0.45	222.0	-1.1194	0.6747	0.0745
0.55	138.0	-0.2255	0.887	0.0329
0.55	150.0	-1.3832	0.8518	0.0882
0.55	210.0	0.4635	0.8998	0.0409
0.55	222.0	-1.3277	0.7888	0.085
0.55	234.0	0.1826	0.7787	0.0319
0.65	138.0	-0.8254	0.8683	0.0579
0.65	150.0	1.486	0.8117	0.094
0.65	210.0	-0.9129	0.7567	0.0624
0.65	222.0	0.388	0.798	0.038
0.75	222.0	-0.7707	0.7673	0.0551
0.75	234.0	-0.3782	0.7343	0.0376
0.85	126.0	1.1504	0.9589	0.0752
0.85	138.0	0.3606	0.8637	0.037
0.85	222.0	-1.3757	0.8009	0.0877
0.85	234.0	0.6008	0.7426	0.0469
0.45	234.0	-1.2665	0.9884	0.0795
0.55	138.0	0.7304	1.2067	0.052
0.55	210.0	-2.1768	0.7121	0.1301
0.55	222.0	-0.2674	1.288	0.0338
0.55	234.0	-1.2322	0.7788	0.0777
0.65	138.0	2.9271	2.9271	0.1728
0.65	222.0	2.204	0.6722	0.1316
0.65	234.0	-1.1433	0.9675	0.0729
0.75	210.0	-0.3152	1.1493	0.0352
0.75	222.0	-1.6037	0.663	0.098
0.75	234.0	0.4613	1.0441	0.0402
0.85	222.0	-1.1707	1.0229	0.0744
0.85	234.0	0.3257	1.1366	0.0355

CLAS Physics Database