Measurement E151M2339

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:	0.2399
Q²:	0.4155 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.848

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	90.0	0.8478	0.8282
0.65	66.0	0.196	0.9698
0.65	90.0	-1.0806	0.8976
0.65	102.0	-0.8825	0.922
0.65	114.0	-1.2886	0.7901
0.65	306.0	-0.3927	0.861
0.75	66.0	-0.2589	0.8523
0.75	78.0	1.4309	0.7466
0.75	102.0	-0.8288	0.8523
0.75	114.0	-0.524	0.8029
0.75	198.0	-1.3252	0.9223
0.75	246.0	-0.218	0.8923
0.85	66.0	-0.1021	0.7283
0.85	78.0	2.5994	2.5994
0.85	90.0	-0.7406	0.8407
0.85	186.0	0.739	0.9475
0.85	198.0	0.5428	0.9982
0.85	210.0	0.328	0.7552
0.85	222.0	0.2822	0.9205
0.85	234.0	-0.1779	0.7695
0.85	246.0	-0.9361	0.681
0.85	258.0	1.1184	0.6237
0.85	270.0	-0.2675	0.7059
0.85	282.0	0.0367	0.7985
0.95	198.0	1.1628	0.8041
0.95	210.0	0.1281	0.8528
0.95	222.0	0.9395	0.7617
0.95	234.0	0.5822	0.8235
0.95	246.0	-0.2676	0.6377
0.95	258.0	0.1702	0.7157
0.95	270.0	-0.1947	0.7037
0.95	282.0	-0.9892	0.7171
0.95	294.0	-0.0143	0.6511
0.95	306.0	0.3669	0.751

CLAS Physics Database