Measurement E151M1647

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:	0.0183
Q²:	0.0205 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6388

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	30.0	-0.2176	0.8557
0.45	42.0	-0.7628	0.6601
0.55	42.0	0.1616	0.9004
0.55	210.0	-0.8498	0.882
0.55	222.0	0.2095	0.9323
0.55	234.0	-1.1107	0.8285
0.65	138.0	0.9368	0.8211
0.65	162.0	-1.356	0.9431
0.65	210.0	-0.3894	0.9801
0.65	222.0	0.0028	0.8911
0.65	234.0	0.9889	0.8345
0.75	222.0	-1.4103	0.9098
0.75	234.0	1.7954	0.7935
0.75	246.0	0.3079	0.9614
0.85	138.0	-0.0797	0.8942
0.85	150.0	-0.8566	0.9229
0.85	210.0	-0.2157	0.8968
0.85	234.0	0.2043	0.9093
0.45	54.0	-2.139	1.013
0.45	234.0	-2.0972	0.7742
0.55	222.0	0.2001	0.9865
0.55	234.0	0.2547	1.1784
0.65	138.0	-1.0586	1.2323
0.65	210.0	-1.1317	0.9152
0.65	222.0	1.0182	1.2392
0.65	234.0	-0.9093	1.0029
0.75	210.0	-1.2257	0.9329
0.75	222.0	-1.1398	0.9917
0.75	234.0	-0.2581	0.9566
0.85	222.0	-0.0891	1.1083
0.85	234.0	0.2195	1.1945

CLAS Physics Database