Measurement E151M1443

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:	0.2909
Q²:	0.0415 GeV²
W:	1235.0 GeV
E_beam:	1.3383 GeV
ε:	0.9364

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	-0.175	0.5078
0.25	30.0	1.1593	0.5874
0.25	42.0	-0.5153	0.382
0.25	54.0	-0.4233	0.4741
0.45	270.0	0.3585	0.4129
0.45	282.0	-0.8934	0.3286
0.55	258.0	0.1439	0.3251
0.55	270.0	0.0279	0.2624
0.55	282.0	0.0316	0.3681
0.65	234.0	0.3802	0.6205
0.65	246.0	-0.0682	0.3731
0.65	258.0	-0.0549	0.2573
0.65	270.0	0.19	0.2772
0.65	282.0	-0.9925	0.2589
0.75	126.0	0.0571	0.5219
0.75	138.0	0.7132	0.3942
0.75	150.0	-0.4646	0.4652
0.75	162.0	-0.3968	0.4701
0.75	222.0	-0.9299	0.664
0.75	234.0	0.3366	0.4413
0.75	246.0	0.0776	0.2792
0.75	258.0	-0.0639	0.2545
0.75	270.0	0.1151	0.2581
0.75	282.0	0.0732	0.3106
0.85	114.0	-0.6155	0.5464
0.85	126.0	-0.1586	0.4123
0.85	138.0	-0.3662	0.3173
0.85	150.0	-0.1344	0.3468
0.85	162.0	0.3859	0.331
0.85	174.0	-0.433	0.331
0.85	186.0	-0.0376	0.3101
0.85	198.0	-0.1781	0.3952
0.85	210.0	0.0276	0.4177
0.85	222.0	-0.108	0.4628
0.85	234.0	0.814	0.386
0.85	246.0	-0.5455	0.2987
0.85	258.0	0.2708	0.2719
0.85	270.0	0.2654	0.294
0.85	282.0	0.4401	0.4496
0.95	138.0	-0.2121	0.3822
0.95	150.0	0.0383	0.3846
0.95	162.0	-0.6066	0.3425
0.95	174.0	0.7182	0.3554
0.95	186.0	-0.4775	0.3747
0.95	198.0	-0.0044	0.6372
0.95	210.0	0.3493	0.5062

CLAS Physics Database