Measurement E151M1386

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:	0.0095
Q²:	0.0059 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6685

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	42.0	0.3806	0.8239	0.0524
0.45	54.0	0.3969	0.6828	0.0539
0.45	222.0	0.0806	0.9138	0.0313
0.55	42.0	1.1356	0.8505	0.1315
0.55	54.0	-0.2302	0.7953	0.0397
0.55	222.0	-0.0503	0.7586	0.0305
0.55	234.0	-0.5106	0.7646	0.0649
0.55	246.0	-0.8677	0.8041	0.1024
0.65	222.0	-1.214	0.6882	0.1402
0.65	234.0	0.4945	0.8466	0.0633
0.65	246.0	-0.9991	0.6843	0.1166
0.75	222.0	-0.4993	0.7768	0.0638
0.75	234.0	-0.5315	0.6166	0.067
0.75	246.0	-1.3408	0.653	0.1542
0.85	222.0	0.0676	0.8259	0.031
0.85	234.0	-1.2219	0.6516	0.141

CLAS Physics Database