Measurement E151M1246

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:	0.1064
Q²:	0.0143 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9145

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.3652	0.6812
0.25	54.0	-0.8335	0.6827
0.35	42.0	-0.1594	0.4926
0.35	54.0	-1.2614	0.4844
0.35	66.0	-0.7327	0.6772
0.45	42.0	-0.8876	0.4958
0.45	54.0	-0.2528	0.4662
0.45	258.0	-1.0154	0.5023
0.45	270.0	0.2273	0.482
0.55	54.0	0.2755	0.5873
0.55	246.0	0.134	0.3862
0.55	258.0	-0.2325	0.3591
0.55	270.0	0.2022	0.3455
0.55	282.0	-0.0421	0.4858
0.65	162.0	0.1561	0.5646
0.65	174.0	0.7317	0.5947
0.65	186.0	-0.1603	0.6016
0.65	198.0	-0.5249	0.5815
0.65	210.0	-0.0565	0.6737
0.65	222.0	0.0447	0.5328
0.65	234.0	0.0058	0.4349
0.65	246.0	-0.7247	0.3107
0.65	258.0	-0.416	0.2749
0.65	270.0	-0.1407	0.3236
0.65	282.0	-0.1742	0.4687
0.75	138.0	-0.6035	0.6035
0.75	150.0	0.3311	0.5577
0.75	162.0	-0.314	0.4757
0.75	174.0	-0.0226	0.3878
0.75	186.0	0.0938	0.4422
0.75	198.0	-0.0508	0.524
0.75	210.0	-0.124	0.5067
0.75	222.0	-0.1879	0.4937
0.75	234.0	-0.0082	0.3402
0.75	246.0	0.06	0.3247
0.75	258.0	0.435	0.3164
0.75	270.0	-0.6007	0.3614
0.85	150.0	0.7137	0.4732
0.85	162.0	-0.8933	0.4963
0.85	174.0	0.1605	0.422
0.85	186.0	0.1889	0.4036
0.85	210.0	1.3121	0.4792
0.85	222.0	-0.189	0.5657
0.85	234.0	0.3453	0.5127
0.85	246.0	0.5737	0.3854
0.85	258.0	0.2602	0.5242

CLAS Physics Database