Measurement E151M1472

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:	0.7443
Q²:	0.2445 GeV²
W:	1265.0 GeV
E_beam:	1.3383 GeV
ε:	0.8039

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	270.0	0.1424	0.5559	0.0542
0.65	258.0	0.4447	0.7218	0.0401
0.65	282.0	0.5909	0.6814	0.0464
0.75	114.0	0.101	0.6834	0.0306
0.75	258.0	-0.2813	0.7233	0.0344
0.75	270.0	0.4152	0.6985	0.039
0.75	294.0	-0.9638	0.6697	0.0651
0.85	90.0	0.7066	0.718	0.0519
0.85	114.0	-0.2405	0.6725	0.0333
0.85	126.0	0.7145	0.6456	0.0523
0.85	138.0	0.9036	0.6895	0.0619
0.85	282.0	-0.7024	0.6632	0.0517
0.95	114.0	0.4494	0.5787	0.0403
0.95	138.0	1.0124	0.576	0.0677
0.95	150.0	0.679	0.5721	0.0506
0.55	282.0	0.5995	0.7902	0.046
0.65	258.0	1.368	0.7745	0.085
0.65	270.0	-0.0916	0.8908	0.0305
0.65	282.0	0.7823	0.859	0.0545
0.65	294.0	-0.3196	0.8451	0.0353
0.75	246.0	-1.6889	0.4633	0.1027
0.75	258.0	0.3484	0.9844	0.0362
0.75	282.0	-1.1981	0.7334	0.0759
0.85	90.0	-0.5043	0.9478	0.042
0.85	102.0	-0.0057	0.9438	0.03
0.85	126.0	1.689	0.7758	0.1027
0.85	138.0	-0.0215	0.94	0.03
0.85	270.0	-0.8947	0.7403	0.0601
0.85	282.0	0.3424	0.9186	0.036
0.85	294.0	1.1167	0.9657	0.0715

CLAS Physics Database