Measurement E151M1996

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:	0.6897
Q²:	0.2915 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9145

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	90.0	0.1832	1.7028
0.75	102.0	1.3075	1.6861
0.75	246.0	2.5747	1.4942
0.85	90.0	-1.3523	1.739
0.85	282.0	0.0137	1.6027
0.85	294.0	1.9433	1.3646
0.85	306.0	3.3135	1.3525
0.65	102.0	0.1509	0.5818
0.65	258.0	0.391	0.6697
0.65	270.0	-0.7122	0.6136
0.75	102.0	0.7929	0.6135
0.85	78.0	-0.5637	0.6618
0.85	90.0	0.9989	0.6426
0.85	102.0	0.4996	0.7404
0.85	114.0	-0.6691	0.7199
0.85	270.0	1.1961	0.5792
0.85	282.0	-0.0621	0.5977
0.85	294.0	-0.0342	0.5561
0.95	258.0	0.9809	1.0628
0.95	282.0	-0.3289	1.0841

CLAS Physics Database