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	syst. uncert.
0.75	90.0	0.1832	1.7028	0.0344
0.75	102.0	1.3075	1.6861	0.1239
0.75	246.0	2.5747	1.4942	0.2385
0.85	90.0	-1.3523	1.739	0.1279
0.85	282.0	0.0137	1.6027	0.03
0.85	294.0	1.9433	1.3646	0.1811
0.85	306.0	3.3135	1.3525	0.306
0.65	102.0	0.1509	0.5818	0.0316
0.65	258.0	0.391	0.6697	0.0393
0.65	270.0	-0.7122	0.6136	0.0552
0.75	102.0	0.7929	0.6135	0.0597
0.85	78.0	-0.5637	0.6618	0.0474
0.85	90.0	0.9989	0.6426	0.0716
0.85	102.0	0.4996	0.7404	0.0442
0.85	114.0	-0.6691	0.7199	0.0529
0.85	270.0	1.1961	0.5792	0.0834
0.85	282.0	-0.0621	0.5977	0.0303
0.85	294.0	-0.0342	0.5561	0.0301
0.95	258.0	0.9809	1.0628	0.0705
0.95	282.0	-0.3289	1.0841	0.0368

CLAS Physics Database