Measurement E151M1750

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:	0.6685
Q²:	0.2915 GeV²
W:	1325.0 GeV
E_beam:	1.9889 GeV
ε:	0.8864

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	270.0	-1.7488	0.4947
0.65	282.0	1.2965	0.6477
0.75	90.0	1.07	0.6696
0.75	102.0	0.1472	0.6196
0.75	258.0	-0.0781	0.6335
0.75	270.0	0.0412	0.6971
0.75	282.0	-0.1683	0.7129
0.75	294.0	0.9683	0.5243
0.85	78.0	-0.4546	0.5349
0.85	90.0	0.7465	0.5854
0.85	102.0	-0.1534	0.6447
0.85	114.0	0.2685	0.6917
0.85	126.0	-0.443	0.7203
0.85	234.0	0.7061	0.6162
0.85	246.0	-0.1492	0.7795
0.85	258.0	0.2665	0.5462
0.85	270.0	0.4962	0.6702
0.85	282.0	-0.0174	0.6263
0.85	294.0	0.6566	0.6779
0.85	306.0	-0.4867	0.5806
0.95	90.0	-0.2235	0.6677
0.95	102.0	-0.2986	0.6355
0.95	114.0	0.0152	0.7918
0.95	126.0	1.277	0.6064
0.95	246.0	0.2643	0.6661
0.95	270.0	-0.3532	0.5321
0.95	282.0	0.8902	0.5511
0.95	294.0	0.1495	0.5466
0.95	306.0	0.99	0.5907

CLAS Physics Database