Measurement E151M1424

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:	0.2713
Q²:	0.0291 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9537

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	270.0	-0.1554	0.5174
0.55	282.0	-0.3854	0.511
0.65	246.0	0.5607	0.6718
0.65	258.0	0.0293	0.5566
0.65	270.0	0.3648	0.4646
0.65	282.0	-0.0955	0.7119
0.75	150.0	0.8602	0.672
0.75	246.0	0.6467	0.514
0.75	258.0	0.0097	0.586
0.75	270.0	-0.1899	0.6625
0.85	138.0	-0.8289	0.77
0.85	150.0	-0.4081	0.5936
0.85	162.0	0.5611	0.4909
0.85	174.0	0.7429	0.542
0.85	186.0	-0.3194	0.6454
0.85	198.0	0.6293	0.5468
0.85	234.0	-0.0274	0.7889
0.45	282.0	-0.3263	0.4913
0.55	258.0	0.8887	0.5711
0.55	270.0	-0.4586	0.5767
0.55	282.0	-0.2694	0.435
0.65	246.0	1.03	0.5322
0.65	258.0	-0.7768	0.4124
0.65	270.0	-0.3275	0.4387
0.75	150.0	-0.6712	0.6066
0.75	234.0	0.9971	0.5308
0.75	246.0	0.7139	0.5847
0.75	258.0	-1.2645	0.3967
0.75	270.0	-0.9306	0.4539
0.85	138.0	-0.5991	0.4839
0.85	150.0	-0.664	0.4298
0.85	162.0	0.5055	0.4051
0.85	174.0	-0.0684	0.3782
0.85	186.0	0.0323	0.4673
0.85	198.0	0.8	0.4189
0.85	210.0	0.763	0.5708
0.85	222.0	0.1838	0.5116
0.85	246.0	0.53	0.5744

CLAS Physics Database