Measurement E151M1724

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:	0.2004
Q²:	0.0415 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.9621

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	306.0	0.0037	0.5929
0.25	78.0	-0.8201	0.7453
0.25	294.0	0.396	0.5345
0.25	306.0	-0.8204	0.5179
0.25	318.0	-0.9327	0.565
0.35	66.0	-0.3242	0.4933
0.35	78.0	0.5741	0.4925
0.35	282.0	0.7782	0.6693
0.35	294.0	0.2153	0.518
0.35	306.0	-0.0412	0.4517
0.45	66.0	-0.212	0.4589
0.45	78.0	-0.8985	0.3556
0.45	90.0	-0.1125	0.4897
0.45	282.0	0.0914	0.4964
0.45	294.0	-0.6863	0.4154
0.45	306.0	0.3593	0.5517
0.55	66.0	0.8851	0.4661
0.55	78.0	0.4194	0.3889
0.55	90.0	0.5634	0.3746
0.55	258.0	0.3214	0.5409
0.55	270.0	-0.7786	0.5576
0.55	282.0	-0.6804	0.4606
0.55	294.0	-0.1781	0.585
0.65	78.0	0.3269	0.4693
0.65	90.0	0.4554	0.4533
0.65	102.0	-0.1543	0.7001
0.65	114.0	0.7009	0.6364
0.65	234.0	0.0419	0.4834
0.65	246.0	-0.5131	0.4742
0.65	258.0	0.2785	0.3532
0.65	270.0	-0.2602	0.4061
0.65	282.0	0.5004	0.6576
0.75	90.0	-0.3519	0.6844
0.75	102.0	-0.4067	0.7004
0.75	114.0	-0.0631	0.4884
0.75	126.0	0.1879	0.429
0.75	138.0	0.0993	0.4393
0.75	150.0	0.1271	0.5665
0.75	162.0	0.6382	0.6051
0.75	222.0	-0.6409	0.4791
0.75	234.0	0.2437	0.4186
0.75	246.0	-0.3083	0.3126
0.75	258.0	-0.1549	0.3315
0.75	270.0	0.2969	0.4374
0.85	102.0	0.9787	0.6434
0.85	114.0	0.6474	0.4427
0.85	126.0	-0.0192	0.4136
0.85	138.0	0.661	0.4096
0.85	150.0	-0.4759	0.4374
0.85	162.0	0.0086	0.5021
0.85	198.0	0.6243	0.6912
0.85	210.0	0.0197	0.528
0.85	222.0	0.5826	0.3819
0.85	234.0	-0.2275	0.3868
0.85	246.0	0.3772	0.3653
0.85	258.0	0.3154	0.3468
0.85	270.0	-0.2229	0.5288
0.95	126.0	1.0372	0.585
0.95	138.0	0.9108	0.5686
0.95	150.0	0.4807	0.5948
0.95	162.0	-0.5431	0.5729
0.95	174.0	0.5759	0.6063
0.95	186.0	0.9568	0.5859
0.95	222.0	0.6626	0.6065
0.95	234.0	0.8677	0.5335

CLAS Physics Database