Measurement E151M1142

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_UL
ε_L:	0.1572
Q²:	0.2915 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8472

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	270.0	1.4991	1.0057	0.1136
0.45	282.0	0.0782	0.8659	0.0305
0.55	90.0	0.1206	0.8422	0.0313
0.55	102.0	-0.2652	0.7822	0.0357
0.65	102.0	-0.3708	0.7117	0.0404
0.65	114.0	-0.8579	0.6911	0.0695
0.65	198.0	1.4782	1.0818	0.1121
0.65	294.0	0.1421	0.7471	0.0317
0.75	78.0	0.408	0.8278	0.0423
0.75	126.0	-0.371	0.8581	0.0404
0.75	198.0	-0.1001	0.8655	0.0309
0.75	210.0	-0.2345	0.8565	0.0346
0.75	222.0	1.4213	0.9556	0.1081
0.75	234.0	0.9768	0.8426	0.0774
0.75	246.0	-0.5805	0.7339	0.052
0.85	66.0	2.0633	0.8768	0.1538
0.85	78.0	0.824	0.705	0.0673
0.85	90.0	-0.2848	0.702	0.0365
0.85	102.0	0.3022	0.7487	0.0373
0.85	186.0	0.0503	0.8282	0.0302
0.85	198.0	-0.1895	0.6264	0.033
0.85	210.0	0.5263	0.7384	0.0488
0.85	222.0	0.9108	0.743	0.073
0.85	234.0	-0.3934	0.6647	0.0416
0.85	246.0	1.9945	0.8828	0.1488
0.85	258.0	1.0993	0.8067	0.0858
0.95	114.0	-1.4036	0.5991	0.1069
0.95	174.0	0.111	0.8038	0.0311
0.95	186.0	0.1151	0.8	0.0312
0.95	198.0	1.0253	0.7474	0.0807
0.95	210.0	-0.2896	0.5925	0.0367
0.95	222.0	1.0151	0.6253	0.08
0.95	234.0	-0.0417	0.5655	0.0302
0.95	246.0	0.7181	0.6002	0.0605
0.95	258.0	0.5563	0.7724	0.0505
0.95	270.0	-0.4368	0.5659	0.0438

CLAS Physics Database