Measurement E151M1396

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:	0.0501
Q²:	0.0348 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6309

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	54.0	-0.128	0.8475
0.35	42.0	0.059	0.7424
0.35	54.0	-0.2682	0.6729
0.45	30.0	-0.4329	0.8539
0.45	42.0	0.1131	0.6613
0.45	54.0	0.4835	0.6369
0.45	66.0	0.1238	1.0056
0.45	222.0	-0.9222	0.8747
0.45	234.0	-0.7534	0.8024
0.45	246.0	-0.7712	0.7832
0.45	258.0	-0.27	0.741
0.55	42.0	-0.3234	0.9061
0.55	54.0	-0.6581	0.7434
0.55	162.0	0.2565	0.7553
0.55	186.0	0.1163	0.8514
0.55	222.0	-1.5247	0.6571
0.55	234.0	-0.4173	0.6053
0.55	246.0	0.0322	0.5633
0.55	258.0	-0.6796	0.5646
0.65	138.0	-0.966	0.8649
0.65	150.0	-0.274	0.7991
0.65	162.0	-0.4642	0.7244
0.65	174.0	-0.8959	0.7904
0.65	186.0	-0.5195	0.8982
0.65	222.0	-0.1743	0.5504
0.65	234.0	0.4246	0.519
0.65	246.0	0.1615	0.548
0.65	258.0	-0.9905	0.5951
0.65	270.0	-0.3709	0.8234
0.75	150.0	-0.7888	0.7776
0.75	162.0	0.2707	0.7111
0.75	174.0	1.4886	0.8418
0.75	222.0	-0.1524	0.7107
0.75	234.0	0.1994	0.5997
0.75	246.0	-0.0141	0.5561
0.75	258.0	-0.0671	0.5568
0.75	270.0	0.3588	0.7549
0.85	222.0	-1.1535	0.7581
0.85	234.0	-0.4894	0.548
0.85	246.0	-0.0164	0.5398
0.85	258.0	-0.629	0.4785
0.85	270.0	1.1305	0.7099
0.95	234.0	-0.2866	0.6717
0.95	258.0	-0.1083	0.5357

CLAS Physics Database