Measurement E151M1164

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_UL
ε_L:	0.0737
Q²:	0.1435 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8502

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	54.0	0.1008	0.9325	0.0309
0.65	114.0	-0.4913	0.8014	0.0468
0.65	186.0	-0.6118	0.8818	0.0538
0.65	198.0	0.3375	0.9313	0.0388
0.65	222.0	1.2324	1.0837	0.0949
0.65	282.0	-0.2316	0.6952	0.0344
0.65	294.0	-0.8601	0.7666	0.0697
0.75	102.0	-0.3865	0.7881	0.0412
0.75	186.0	-1.0028	0.7741	0.0792
0.75	198.0	-0.1481	0.8003	0.0319
0.75	210.0	-0.4232	0.7263	0.0431
0.75	222.0	0.1478	0.856	0.0319
0.75	234.0	0.7386	0.8906	0.0618
0.75	270.0	0.348	0.8129	0.0393
0.75	282.0	-1.1721	0.5557	0.0908
0.75	294.0	0.1703	0.8731	0.0325
0.85	90.0	1.0447	0.7618	0.082
0.85	102.0	-0.242	0.5632	0.0348
0.85	114.0	-0.3219	0.5884	0.0381
0.85	126.0	-0.4502	0.8408	0.0445
0.85	174.0	-2.0316	0.5727	0.1515
0.85	186.0	-0.4985	0.7205	0.0472
0.85	198.0	-0.0736	0.6569	0.0305
0.85	210.0	-0.3079	0.6625	0.0375
0.85	222.0	-0.2746	0.6116	0.0361
0.85	234.0	1.1699	0.9488	0.0906
0.85	246.0	1.454	0.8573	0.1104
0.95	198.0	0.4656	0.9028	0.0454
0.95	210.0	0.1563	0.6961	0.0321
0.95	222.0	0.6409	0.8134	0.0556
0.95	234.0	-0.143	0.7834	0.0318

CLAS Physics Database