Measurement E151M3142

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_LU
ε_L:	0.0277
Q²:	0.0415 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7561

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.35	90.0	0.1673	0.2617
0.35	282.0	-0.0483	0.2529
0.45	210.0	0.2682	0.2631
0.45	246.0	-0.0187	0.2874
0.45	258.0	0.3305	0.2617
0.45	270.0	0.5036	0.2161
0.45	282.0	0.3435	0.2305
0.55	78.0	-0.8187	0.1564
0.55	126.0	-0.2536	0.2712
0.55	138.0	0.1661	0.2383
0.55	222.0	0.2609	0.2485
0.55	258.0	-0.0439	0.2653
0.55	270.0	-0.1365	0.2675
0.55	282.0	0.4774	0.232
0.65	78.0	-0.0411	0.247
0.65	114.0	0.4087	0.2709
0.65	126.0	0.1447	0.2184
0.65	138.0	0.0177	0.255
0.65	198.0	-0.3683	0.2397
0.65	210.0	0.2267	0.2251
0.65	222.0	0.2548	0.2679
0.65	282.0	0.5124	0.2393
0.65	294.0	0.0185	0.2668
0.75	66.0	-0.1258	0.2138
0.75	186.0	0.2263	0.288
0.75	198.0	-0.1875	0.2271
0.75	210.0	0.1757	0.2262
0.75	222.0	0.3307	0.2018
0.75	234.0	0.0027	0.2626
0.75	258.0	0.0286	0.3506
0.75	270.0	0.0876	0.2418
0.75	282.0	0.0691	0.2223
0.85	114.0	0.0307	0.2266
0.85	126.0	0.5762	0.1883
0.85	138.0	-0.3775	0.2691
0.85	198.0	0.2226	0.2491
0.85	210.0	-0.1608	0.246
0.85	222.0	0.1363	0.2276
0.85	234.0	0.0082	0.2343
0.85	270.0	0.4333	0.2385

CLAS Physics Database