Measurement E151M2031

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:	0.2911
Q²:	0.1435 GeV²
W:	1415.0 GeV
E_beam:	2.2596 GeV
ε:	0.9222

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	-0.0482	1.1466
0.45	78.0	0.9235	1.1189
0.45	282.0	-2.4093	0.8857
0.45	294.0	0.4137	0.8093
0.65	102.0	-0.2964	1.143
0.65	114.0	0.1244	1.1309
0.65	246.0	-0.4188	1.0765
0.75	90.0	-1.2732	1.1344
0.75	102.0	-1.9244	1.0209
0.75	114.0	0.1342	0.9733
0.75	126.0	1.7159	1.2179
0.75	138.0	1.0223	1.3442
0.75	210.0	-1.2618	1.222
0.75	234.0	-1.3993	1.0739
0.75	246.0	-0.2083	0.943
0.75	258.0	0.4847	0.9634
0.75	270.0	-0.4763	1.1389
0.85	102.0	-0.6158	1.477
0.85	114.0	-1.2426	1.14
0.85	126.0	2.1342	1.2487
0.85	138.0	1.4206	1.4659
0.85	222.0	-1.4098	1.322
0.85	234.0	0.2178	1.1522
0.85	246.0	1.4484	1.0516
0.85	258.0	0.0702	0.9143
0.85	270.0	0.7481	0.9646
0.95	234.0	5.0399	3.488
0.95	246.0	-2.7457	3.2725
0.95	258.0	1.319	2.9356
0.95	270.0	1.077	3.0399
0.95	282.0	0.8176	2.8838
0.25	294.0	1.4738	0.6256
0.35	66.0	0.2928	0.5624
0.35	294.0	-0.0727	0.6663
0.35	306.0	0.6051	0.6658
0.45	66.0	-0.8033	0.7093
0.45	78.0	-2.2398	2.2398
0.45	282.0	0.1734	0.7527
0.45	294.0	-0.1481	0.6837
0.55	270.0	0.3121	0.7759
0.55	282.0	-0.4172	0.7297
0.65	102.0	1.197	0.55
0.65	114.0	0.5551	0.6995
0.65	246.0	-0.3571	0.7473
0.75	90.0	1.1246	0.6303
0.75	102.0	-0.0669	0.6353
0.75	114.0	-0.3783	0.7001
0.75	126.0	-0.3213	0.7354
0.75	138.0	-1.0682	0.8497
0.75	234.0	0.3544	0.8761
0.75	246.0	-0.1484	0.6821
0.75	258.0	0.55	0.8073
0.75	270.0	0.4074	0.7828
0.85	90.0	-0.199	0.8945
0.85	102.0	-0.4681	0.8139
0.85	114.0	1.1708	0.8157
0.85	126.0	0.9656	0.6745
0.85	138.0	0.9084	0.8962
0.85	222.0	-1.218	0.983
0.85	234.0	0.5758	0.678
0.85	246.0	1.0367	0.747
0.85	258.0	-0.1123	0.6493
0.85	270.0	0.8035	0.6447
0.85	282.0	0.1668	0.723
0.95	222.0	0.6251	1.4002
0.95	246.0	0.771	1.2135
0.95	258.0	-1.609	1.1756
0.95	270.0	0.2119	1.029
0.95	282.0	0.5738	1.0279

CLAS Physics Database