Measurement E151M1345

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:	0.0057
Q²:	0.0023 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7727

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	42.0	0.0039	1.012	0.03
0.45	54.0	-0.2674	0.721	0.0425
0.45	222.0	-0.3999	0.7314	0.0542
0.45	234.0	1.0386	0.9043	0.1209
0.55	42.0	0.0885	0.7803	0.0316
0.55	54.0	-0.7608	0.6492	0.0909
0.55	66.0	-1.0872	0.9415	0.1262
0.55	150.0	-0.8087	0.7809	0.096
0.55	162.0	0.1223	1.0112	0.033
0.55	174.0	-0.7692	0.8879	0.0918
0.55	210.0	1.4743	0.7698	0.169
0.55	222.0	1.1498	0.7555	0.1331
0.55	234.0	-0.4284	0.5419	0.0569
0.55	246.0	-0.6292	0.6795	0.0771
0.55	258.0	0.6957	0.8618	0.084
0.65	18.0	-0.126	0.9024	0.0332
0.65	30.0	0.7668	0.6938	0.0915
0.65	42.0	-0.6603	0.5981	0.0803
0.65	54.0	0.1807	0.527	0.0363
0.65	66.0	-1.0991	0.9923	0.1275
0.65	138.0	-1.1606	0.8933	0.1343
0.65	150.0	0.5818	0.8534	0.0722
0.65	162.0	0.6961	0.7698	0.084
0.65	174.0	-1.0876	0.7995	0.1263
0.65	186.0	-2.0403	0.7836	0.2321
0.65	210.0	-1.9187	0.669	0.2185
0.65	222.0	-0.0369	0.637	0.0303
0.65	234.0	0.0583	0.4875	0.0307
0.65	246.0	-0.2864	0.5581	0.0441
0.65	258.0	2.0142	0.7652	0.2291
0.75	54.0	-0.278	0.7668	0.0434
0.75	150.0	-0.1225	0.9327	0.033
0.75	162.0	-1.8743	0.7627	0.2135
0.75	186.0	-1.384	0.9186	0.159
0.75	210.0	-0.5525	0.678	0.0692
0.75	222.0	0.2566	0.5818	0.0417
0.75	234.0	-0.4825	0.5148	0.0621
0.75	246.0	0.6714	0.5429	0.0815
0.75	258.0	0.6631	0.8597	0.0806
0.85	210.0	-0.1466	0.8995	0.0343
0.85	222.0	-0.109	0.6836	0.0324
0.85	234.0	-1.2294	0.5508	0.1419
0.85	246.0	1.0356	0.579	0.1206

CLAS Physics Database