Measurement E151M1712

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:	0.3833
Q²:	0.0707 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9615

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	306.0	-0.2744	0.6145
0.25	66.0	0.6149	0.5336
0.25	78.0	-0.5966	0.6382
0.25	294.0	0.4515	0.592
0.25	306.0	-0.4462	0.4426
0.35	66.0	-0.2585	0.4269
0.35	78.0	-0.001	0.3854
0.35	294.0	0.5059	0.5286
0.35	306.0	0.5059	0.5826
0.45	66.0	0.1379	0.3846
0.45	78.0	0.1865	0.3358
0.45	90.0	-0.3994	0.5232
0.45	270.0	-0.0908	0.6677
0.45	282.0	0.5406	0.4999
0.45	294.0	-1.1133	0.4576
0.55	66.0	0.392	0.699
0.55	78.0	0.1075	0.3231
0.55	90.0	-0.286	0.4247
0.55	258.0	-0.7025	0.5209
0.55	270.0	0.3867	0.4295
0.55	282.0	0.2514	0.5283
0.65	78.0	0.4918	0.4628
0.65	90.0	0.2965	0.428
0.65	102.0	0.1874	0.5731
0.65	114.0	-0.725	0.6447
0.65	246.0	0.1051	0.5426
0.65	258.0	-0.1071	0.3449
0.65	270.0	-0.4207	0.3124
0.65	282.0	-0.3758	0.361
0.75	90.0	0.2771	0.646
0.75	102.0	0.6828	0.4051
0.75	114.0	-0.0643	0.4552
0.75	126.0	-0.149	0.4911
0.75	138.0	1.2201	0.5104
0.75	234.0	-0.3026	0.4481
0.75	246.0	0.3474	0.3395
0.75	258.0	0.012	0.3103
0.75	270.0	-0.0208	0.2994
0.75	282.0	0.6481	0.4196
0.85	90.0	0.5272	0.6121
0.85	102.0	-0.2175	0.4362
0.85	114.0	0.3245	0.3776
0.85	126.0	0.5913	0.3536
0.85	138.0	-0.1846	0.348
0.85	150.0	-0.0074	0.4558
0.85	162.0	-0.1346	0.4017
0.85	174.0	0.4518	0.4861
0.85	186.0	0.3415	0.5978
0.85	198.0	-0.269	0.668
0.85	210.0	0.0688	0.6388
0.85	222.0	-0.3262	0.4562
0.85	234.0	-0.5658	0.4338
0.85	246.0	0.6876	0.3387
0.85	258.0	-0.2054	0.3256
0.85	270.0	-0.1663	0.3744
0.95	102.0	-1.1963	0.5157
0.95	114.0	-0.3465	0.4415
0.95	126.0	-0.1622	0.3727
0.95	138.0	0.858	0.3551
0.95	150.0	0.902	0.3516
0.95	162.0	0.0933	0.37
0.95	174.0	-0.1853	0.4123
0.95	186.0	-0.0073	0.4402
0.95	198.0	-0.3316	0.481
0.95	210.0	-0.5351	0.454
0.95	222.0	0.2152	0.4875
0.95	234.0	0.2026	0.5309
0.95	246.0	0.357	0.5925
0.95	258.0	0.0618	0.4734

CLAS Physics Database