Measurement E151M1453

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:	0.8967
Q²:	0.2445 GeV²
W:	1235.0 GeV
E_beam:	1.3383 GeV
ε:	0.8237

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	270.0	-0.6105	0.852	0.0465
0.55	294.0	-0.3528	0.7811	0.0363
0.65	282.0	0.3892	0.8282	0.0376
0.75	270.0	-1.4981	0.563	0.0921
0.75	282.0	-0.0193	0.8001	0.03
0.85	90.0	1.1399	0.9093	0.0728
0.85	102.0	-0.9965	0.8959	0.0652
0.85	126.0	-0.1815	0.9646	0.0318
0.85	306.0	-0.4811	0.8151	0.041
0.95	138.0	0.2964	0.7501	0.0346
0.35	282.0	-0.4286	0.6956	0.0395
0.45	270.0	-0.4415	0.6124	0.04
0.45	282.0	0.2098	0.7103	0.0325
0.45	294.0	-0.5743	0.614	0.0457
0.55	282.0	-0.7326	0.6586	0.0532
0.65	282.0	-0.3999	0.7006	0.0384
0.75	258.0	-0.6361	0.7464	0.0485
0.75	282.0	0.1837	0.6557	0.032
0.85	126.0	0.0522	0.6966	0.0302

CLAS Physics Database