Measurement E151M671

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_UL
ε_L:	0.0364
Q²:	0.0415 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.8087

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	78.0	1.1015	0.8951
0.35	78.0	0.4055	0.7637
0.35	258.0	-0.4732	0.7473
0.45	18.0	1.6903	0.8177
0.45	78.0	-0.4578	0.6399
0.45	90.0	0.7788	0.7824
0.45	210.0	1.7227	0.808
0.45	222.0	1.4308	0.781
0.45	270.0	-0.4691	0.5426
0.45	282.0	0.3782	0.7222
0.55	114.0	-0.707	0.6307
0.55	126.0	-0.1558	0.6202
0.55	138.0	0.4022	0.7681
0.55	198.0	1.6344	0.8567
0.55	210.0	0.729	0.8389
0.55	222.0	0.2301	0.7033
0.55	234.0	-0.0212	0.7623
0.55	246.0	-0.6821	0.6996
0.55	258.0	1.3135	0.7045
0.55	270.0	-0.7219	0.4493
0.55	282.0	1.1971	0.8037
0.65	78.0	-0.2209	0.7444
0.65	102.0	-0.5092	0.7358
0.65	114.0	-0.7443	0.6158
0.65	126.0	1.1137	0.7273
0.65	138.0	0.0775	0.6984
0.65	198.0	1.3117	0.7348
0.65	210.0	1.2849	0.7253
0.65	222.0	1.4833	0.6795
0.65	234.0	1.0152	0.8662
0.65	246.0	-0.3155	0.7279
0.65	258.0	0.4107	0.7786
0.65	282.0	0.6068	0.8199
0.65	294.0	0.6021	0.8976
0.75	66.0	1.0443	0.8086
0.75	78.0	0.2368	0.6603
0.75	90.0	-0.4339	0.675
0.75	138.0	-1.1483	0.6485
0.75	210.0	0.2905	0.6215
0.75	222.0	1.1628	0.5891
0.75	234.0	0.2689	0.7933
0.75	258.0	0.0179	0.5894
0.75	270.0	0.0296	0.5418
0.75	282.0	0.4633	0.5305
0.75	294.0	-0.0552	0.7292
0.85	102.0	0.5753	0.7745
0.85	114.0	0.2111	0.5517
0.85	126.0	1.3318	0.6642
0.85	138.0	0.4203	0.7354
0.85	198.0	-0.2506	0.7608
0.85	210.0	-0.0445	0.6278
0.85	222.0	-0.948	0.515
0.85	234.0	0.2409	0.7084
0.85	246.0	-0.1565	0.6829
0.85	282.0	0.3495	0.6948

CLAS Physics Database