Measurement E151M1524

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:	0.264
Q²:	0.101 GeV²
W:	1355.0 GeV
E_beam:	1.3383 GeV
ε:	0.8289

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	246.0	1.0633	0.8158
0.55	258.0	0.8434	1.0646
0.55	270.0	1.7906	0.5188
0.65	114.0	-0.0147	0.816
0.65	126.0	-0.278	0.5995
0.65	138.0	-0.8519	0.8614
0.65	234.0	0.2619	0.6242
0.65	246.0	0.3225	0.4635
0.65	258.0	0.1071	0.4361
0.65	270.0	0.444	0.4788
0.75	114.0	-0.1849	0.5608
0.75	126.0	0.482	0.5473
0.75	138.0	-0.5676	0.5777
0.75	150.0	-0.1469	0.5968
0.75	222.0	-0.05	0.9553
0.75	234.0	-0.3476	0.4766
0.75	246.0	0.3351	0.4803
0.75	258.0	0.077	0.4579
0.75	270.0	-0.0824	0.4096
0.75	282.0	0.1478	0.5225
0.85	102.0	0.8579	0.5708
0.85	114.0	-0.15	0.4396
0.85	126.0	0.2111	0.5001
0.85	138.0	-0.1112	0.4446
0.85	150.0	0.2615	0.5415
0.85	162.0	0.6496	0.5923
0.85	234.0	-0.475	0.5029
0.85	246.0	0.8783	0.4304
0.85	258.0	-0.5217	0.4013
0.85	270.0	0.3471	0.4092
0.85	282.0	0.0563	0.3851
0.85	294.0	0.3659	0.6164
0.95	78.0	0.6711	0.4848
0.95	90.0	0.0824	0.4495
0.95	102.0	-0.676	0.5605
0.95	138.0	0.0213	0.5933
0.95	150.0	-1.5991	0.706
0.95	234.0	0.939	0.7181
0.95	246.0	1.0715	0.3821
0.95	258.0	-0.1461	0.4191
0.95	270.0	0.0153	0.5133
0.95	282.0	0.6442	0.3899

CLAS Physics Database