Measurement E151M491

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:	0.4406
Q²:	0.0844 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9583

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	66.0	0.2506	0.5063
0.25	78.0	0.0821	0.5435
0.25	294.0	0.3793	0.5628
0.25	306.0	-1.0652	0.3657
0.35	66.0	0.1139	0.3562
0.35	78.0	0.3771	0.422
0.35	294.0	-0.1529	0.5562
0.45	66.0	-0.0235	0.3744
0.45	78.0	0.1625	0.3259
0.45	90.0	0.0626	0.5532
0.45	282.0	0.127	0.4846
0.55	66.0	-0.0858	0.4997
0.55	78.0	0.0309	0.3272
0.55	90.0	-0.5257	0.3862
0.55	258.0	0.3688	0.6114
0.55	270.0	0.586	0.4169
0.55	282.0	-0.3	0.3627
0.65	78.0	0.5364	0.4305
0.65	90.0	-0.4023	0.4402
0.65	102.0	0.4007	0.5598
0.65	258.0	0.3532	0.3255
0.65	270.0	0.0728	0.3013
0.65	282.0	-0.2532	0.3561
0.75	90.0	-0.0579	0.4864
0.75	102.0	-0.1433	0.4741
0.75	114.0	-0.3521	0.3799
0.75	126.0	0.0712	0.4213
0.75	138.0	0.5404	0.6905
0.75	234.0	-0.2367	0.4462
0.75	246.0	-0.4588	0.346
0.75	258.0	-0.128	0.2918
0.75	270.0	0.0568	0.2785
0.75	282.0	-0.505	0.311
0.85	90.0	0.2852	0.5493
0.85	102.0	0.2553	0.3413
0.85	114.0	-0.2005	0.2654
0.85	126.0	-0.0606	0.3119
0.85	138.0	0.3788	0.3536
0.85	150.0	0.2016	0.3453
0.85	162.0	-0.2255	0.4938
0.85	174.0	0.8966	0.6072
0.85	222.0	0.1182	0.4825
0.85	234.0	0.0014	0.4084
0.85	246.0	-0.2285	0.2883
0.85	258.0	-0.0587	0.2733
0.85	270.0	0.1918	0.2999
0.95	102.0	0.3841	0.5175
0.95	114.0	0.0148	0.3736
0.95	126.0	0.1387	0.3341
0.95	138.0	-0.0798	0.2971
0.95	150.0	0.6406	0.3774
0.95	162.0	-0.0503	0.3436
0.95	174.0	0.0065	0.3362
0.95	186.0	-0.1136	0.4363
0.95	198.0	1.2464	0.4943
0.95	210.0	0.1173	0.5184
0.95	222.0	-0.5617	0.4185
0.95	234.0	-0.742	0.3152
0.95	246.0	0.0426	0.4655
0.95	258.0	0.2855	0.4676

CLAS Physics Database