Measurement E151M2350

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:	0.1744
Q²:	0.2915 GeV²
W:	1685.0 GeV
E_beam:	2.999 GeV
ε:	0.8603

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	270.0	-0.2812	0.9633
0.45	282.0	-0.7905	0.7689
0.55	102.0	-1.0044	0.8003
0.55	114.0	-1.2986	0.7856
0.55	210.0	-0.4755	0.9278
0.55	294.0	0.1688	0.8581
0.65	90.0	0.4752	0.7996
0.65	102.0	0.2476	0.707
0.65	114.0	0.7278	0.7322
0.65	198.0	0.2873	0.9678
0.65	210.0	-0.6133	0.9428
0.65	222.0	-0.8917	0.8142
0.65	234.0	-0.3116	0.7859
0.65	294.0	-0.2902	0.6848
0.65	306.0	-0.6974	0.7035
0.75	78.0	-0.4562	0.7
0.75	102.0	1.5329	0.7304
0.75	114.0	0.8091	0.6773
0.75	126.0	-0.0607	0.9424
0.75	186.0	-0.1431	0.8184
0.75	198.0	-1.8	0.6586
0.75	210.0	1.7415	0.6849
0.75	222.0	-0.0017	0.7697
0.75	234.0	-0.3822	0.6851
0.75	246.0	-0.2243	0.8009
0.75	294.0	-0.7351	0.7967
0.85	66.0	0.7126	0.6172
0.85	78.0	0.3175	0.5856
0.85	90.0	-0.0649	0.6592
0.85	186.0	0.4287	0.8091
0.85	198.0	-1.248	0.6614
0.85	210.0	0.73	0.6444
0.85	222.0	-0.9199	0.4687
0.85	234.0	-0.2713	0.5425
0.85	246.0	-0.4328	0.5109
0.85	258.0	-1.8851	0.6146
0.85	270.0	-0.6823	0.8929
0.95	90.0	-1.5788	0.6518
0.95	174.0	-0.3929	0.7242
0.95	198.0	0.049	0.7094
0.95	210.0	0.113	0.6412
0.95	222.0	-0.0013	0.612
0.95	234.0	0.1647	0.5791
0.95	246.0	-0.6049	0.5402
0.95	258.0	-0.6208	0.5551
0.95	270.0	-0.1515	0.5157
0.95	282.0	-0.2427	0.6105
0.95	294.0	-0.2577	0.7479

CLAS Physics Database