Measurement E151M1314

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:	0.1029
Q²:	0.0291 GeV²
W:	1325.0 GeV
E_beam:	1.0539 GeV
ε:	0.82

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	1.5616	0.8129
0.25	30.0	1.3305	0.804
0.25	42.0	0.5868	0.7645
0.25	54.0	0.8758	0.8218
0.35	30.0	-0.1263	0.8083
0.35	42.0	-1.2465	0.6726
0.35	54.0	-0.091	0.849
0.45	30.0	-0.6131	0.5694
0.45	42.0	-0.2841	0.6635
0.45	54.0	-0.264	0.7383
0.55	42.0	-0.2593	0.7549
0.55	54.0	0.9129	0.8547
0.55	234.0	-0.2006	0.5416
0.55	246.0	0.5477	0.5099
0.55	258.0	-0.194	0.4855
0.55	270.0	1.0884	0.612
0.65	138.0	-0.8104	0.7916
0.65	150.0	0.0003	0.7403
0.65	162.0	0.0438	0.8066
0.65	174.0	0.5803	0.887
0.65	186.0	1.9197	0.7684
0.65	210.0	0.7386	0.8302
0.65	222.0	-0.2232	0.5904
0.65	234.0	0.5779	0.4709
0.65	246.0	-1.1098	0.4614
0.65	258.0	0.5679	0.4246
0.65	270.0	-0.3165	0.5601
0.75	138.0	1.3199	0.6988
0.75	150.0	0.9197	0.6141
0.75	162.0	1.1714	0.6179
0.75	174.0	1.3215	0.5916
0.75	186.0	1.5357	0.6848
0.75	222.0	-0.766	0.6187
0.75	234.0	-0.0008	0.4768
0.75	246.0	0.2757	0.4714
0.75	258.0	-0.4236	0.437
0.75	270.0	-0.0303	0.4792
0.75	282.0	0.4146	0.7891
0.85	138.0	0.0557	0.7538
0.85	150.0	-0.068	0.6702
0.85	162.0	-0.0263	0.7024
0.85	174.0	1.0934	0.7523
0.85	222.0	-0.1599	0.7227
0.85	234.0	-0.4085	0.508
0.85	246.0	-0.0458	0.3959
0.85	258.0	0.0567	0.4929
0.85	270.0	-0.0947	0.4352
0.85	282.0	0.7284	0.7549
0.95	138.0	-0.0384	0.6001
0.95	246.0	-0.1894	0.5203
0.95	258.0	-0.3148	0.6607

CLAS Physics Database