Measurement E151M1427

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:	0.4272
Q²:	0.0496 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9438

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	0.5537	0.4251	0.058
0.55	270.0	-0.3873	0.3718	0.0399
0.55	282.0	0.1243	0.4231	0.0353
0.65	258.0	-0.4124	0.3478	0.0644
0.65	270.0	-0.2628	0.3355	0.0344
0.65	282.0	0.3764	0.3308	0.0389
0.75	258.0	0.3527	0.3744	0.0404
0.75	270.0	0.1414	0.4082	0.0341
0.85	114.0	-1.8361	1.8361	0.1109
0.85	126.0	0.9136	0.3684	0.0656
0.85	138.0	0.5246	0.386	0.0454
0.85	150.0	-0.089	0.4626	0.0312
0.85	162.0	-0.0164	0.352	0.0329
0.85	174.0	0.2909	0.3946	0.0347
0.85	186.0	-0.2469	0.3582	0.051
0.85	198.0	-0.3581	0.3813	0.0412
0.85	210.0	0.2983	0.3798	0.042
0.95	138.0	-0.2737	0.5477	0.0342
0.95	150.0	0.265	0.4479	0.0339
0.95	162.0	0.804	0.5427	0.0568
0.95	174.0	-0.1425	0.4476	0.0312
0.95	186.0	-0.3412	0.4744	0.0363
0.95	198.0	0.4987	0.4647	0.0423
0.85	270.0	-0.657	0.6384	0.0486
0.95	138.0	0.8155	0.4903	0.0561
0.95	150.0	0.5984	0.6613	0.0459
0.95	162.0	1.4868	1.4868	0.0915
0.95	174.0	0.2823	0.6338	0.0342
0.95	186.0	-0.0127	0.5228	0.03
0.95	198.0	0.0992	0.6646	0.0305

CLAS Physics Database