Measurement E151M1428

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:	0.4923
Q²:	0.0593 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.939

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	270.0	-1.1179	0.409
0.55	282.0	-0.1878	0.4487
0.65	270.0	-0.413	0.4462
0.65	282.0	-0.3378	0.5285
0.75	246.0	0.5047	0.6107
0.75	258.0	0.1123	0.5344
0.75	270.0	0.3087	0.4814
0.75	282.0	0.4424	0.6161
0.85	126.0	-1.1547	0.5824
0.85	138.0	-1.5394	0.4784
0.85	150.0	0.9871	0.5711
0.85	162.0	-0.1103	0.58
0.85	174.0	-0.4393	0.5793
0.85	198.0	-0.7891	0.5697
0.85	210.0	-0.9867	0.5603
0.85	258.0	0.3647	0.5456
0.85	270.0	0.4728	0.508
0.95	126.0	-0.2346	0.5146
0.95	150.0	0.8582	0.5036
0.95	162.0	0.7812	0.495
0.95	174.0	0.7385	0.4624
0.95	186.0	-0.0702	0.4837
0.95	198.0	0.4374	0.4297
0.45	282.0	-0.1679	0.7536
0.55	270.0	-0.439	0.7621
0.55	282.0	0.4054	0.6471
0.65	258.0	-1.2785	0.5136
0.65	270.0	0.4699	0.591
0.65	282.0	-0.1239	0.7399
0.75	258.0	-1.0757	0.4002
0.75	270.0	0.8242	0.529
0.75	282.0	0.5238	0.8148
0.85	126.0	0.6975	0.6597
0.85	138.0	0.9218	0.5153
0.85	150.0	0.882	0.6752
0.85	162.0	-0.3713	0.7287
0.85	174.0	-0.5081	0.6639
0.85	186.0	-1.0959	0.5691
0.85	210.0	-0.2163	0.728
0.95	138.0	-0.6006	0.5332
0.95	150.0	-0.4292	0.6582
0.95	162.0	-0.2781	0.5825
0.95	174.0	1.1534	0.4639
0.95	186.0	-0.46	0.74
0.95	198.0	0.7225	0.6941
0.95	210.0	0.0203	0.6643

CLAS Physics Database