Measurement E151M1361

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:	0.1402
Q²:	0.0707 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.6915

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.6096	0.9827
0.35	42.0	0.4925	0.8803
0.35	54.0	0.4806	1.037
0.45	42.0	2.6657	0.6764
0.45	258.0	1.0684	0.8688
0.55	246.0	0.9346	0.7158
0.55	258.0	0.7268	0.672
0.55	270.0	-0.9347	0.7717
0.65	138.0	0.5296	0.8834
0.65	150.0	-2.1521	0.9109
0.65	186.0	1.1591	0.9751
0.65	222.0	0.4383	0.8855
0.65	234.0	-0.6763	0.7279
0.65	246.0	-0.8613	0.6944
0.65	258.0	-0.4422	0.5997
0.65	270.0	0.4759	0.5791
0.75	138.0	1.2129	0.7339
0.75	150.0	0.2929	0.9061
0.75	162.0	-0.202	0.7353
0.75	174.0	1.23	0.8802
0.75	186.0	0.7134	0.8928
0.75	222.0	-0.3274	0.7311
0.75	234.0	0.696	0.7042
0.75	246.0	0.753	0.5338
0.75	258.0	-0.1178	0.5117
0.75	270.0	-0.1391	0.6869
0.85	138.0	-0.4086	0.7791
0.85	150.0	0.9207	0.8417
0.85	162.0	1.1006	0.7746
0.85	174.0	0.1631	0.8273
0.85	186.0	-0.4364	0.9211
0.85	234.0	0.5836	0.6633
0.85	246.0	0.9488	0.5488
0.85	258.0	-0.4245	0.5122
0.85	270.0	-0.1609	0.5743
0.85	282.0	0.3608	0.7399
0.95	126.0	1.0314	0.7187
0.95	138.0	1.2002	0.7887
0.95	246.0	-0.1374	0.7136
0.95	258.0	0.103	0.6579
0.95	270.0	0.1197	0.5389

CLAS Physics Database