Measurement E151M1233

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:	0.4092
Q²:	0.0496 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.904

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	-0.889	0.5166	0.1047
0.55	270.0	-0.0463	0.4239	0.0305
0.55	282.0	0.2867	0.3766	0.0441
0.65	258.0	-0.8899	0.4428	0.1048
0.65	270.0	-0.143	0.4247	0.0341
0.65	282.0	-0.0135	0.4906	0.03
0.75	246.0	0.618	0.5378	0.0759
0.75	258.0	0.2435	0.4236	0.0407
0.75	270.0	0.4984	0.3655	0.0637
0.75	282.0	-0.525	0.5119	0.0664
0.85	150.0	0.1886	0.4803	0.0368
0.85	162.0	0.575	0.4382	0.0715
0.85	174.0	-0.2599	0.4885	0.0419
0.85	186.0	-0.1803	0.3589	0.0362
0.85	198.0	0.0314	0.5113	0.0302
0.85	210.0	0.7965	0.4133	0.0947
0.85	222.0	-0.5228	0.42	0.0662
0.85	234.0	0.1856	0.5114	0.0366
0.95	150.0	0.7455	0.3922	0.0893
0.95	162.0	-0.1378	0.3731	0.0338
0.95	174.0	0.3995	0.3538	0.0541
0.95	186.0	0.1745	0.3846	0.0359
0.95	210.0	0.6568	0.3858	0.0799
0.95	222.0	0.2055	0.3866	0.0379

CLAS Physics Database