Measurement E151M1330

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:	0.0364
Q²:	0.0121 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8024

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.9455	1.0265
0.35	42.0	0.4966	0.7081
0.35	54.0	0.2735	0.7003
0.45	30.0	0.8705	0.9253
0.45	42.0	-1.166	0.6784
0.45	54.0	-1.1563	0.6485
0.45	66.0	-0.5176	0.9412
0.55	18.0	-1.1507	0.9326
0.55	30.0	0.1983	0.5812
0.55	42.0	0.5516	0.5559
0.55	54.0	-0.594	0.6771
0.55	66.0	-0.2227	1.102
0.55	210.0	0.0829	0.9
0.55	222.0	0.4444	0.8061
0.55	234.0	-0.0824	0.5377
0.55	246.0	0.1883	0.6952
0.55	258.0	-0.8771	0.641
0.65	42.0	0.1263	0.7147
0.65	54.0	-0.3379	0.6604
0.65	138.0	1.539	0.7221
0.65	150.0	-0.128	0.7188
0.65	162.0	0.4715	0.7789
0.65	174.0	0.9435	0.7208
0.65	198.0	-0.1161	0.9281
0.65	210.0	-0.798	0.7191
0.65	222.0	0.1237	0.5469
0.65	234.0	-1.1102	0.5137
0.65	246.0	-0.208	0.4785
0.65	258.0	0.9771	0.6491
0.75	138.0	-1.5327	0.8399
0.75	150.0	-0.2926	0.8343
0.75	162.0	0.574	0.8059
0.75	174.0	0.8305	0.8883
0.75	210.0	0.2318	0.7047
0.75	222.0	0.1629	0.6067
0.75	234.0	-0.1293	0.537
0.75	246.0	0.2808	0.4951
0.75	258.0	0.3337	0.6352
0.85	210.0	-0.3353	0.9008
0.85	222.0	-0.0768	0.6157
0.85	234.0	0.2112	0.5208
0.85	246.0	-0.3303	0.5626
0.85	258.0	0.7503	0.6582

CLAS Physics Database