Measurement E151M246

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:	0.528
Q²:	0.1205 GeV²
W:	1265.0 GeV
E_beam:	1.3383 GeV
ε:	0.8786

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	270.0	0.5401	0.4505	0.0449
0.45	282.0	-0.0348	0.4008	0.0385
0.55	270.0	-0.0698	0.3484	0.0347
0.55	282.0	0.3004	0.2966	0.0375
0.55	294.0	0.1381	0.5233	0.0365
0.65	258.0	0.5381	0.3899	0.0448
0.65	270.0	-0.0899	0.3134	0.0409
0.65	282.0	0.0377	0.3341	0.0311
0.65	294.0	-0.6131	0.335	0.0486
0.75	126.0	-0.8536	0.4902	0.0608
0.75	234.0	1.5074	0.9966	0.0956
0.75	246.0	-0.1602	0.3725	0.0319
0.75	258.0	-0.3605	0.2822	0.0375
0.75	270.0	-0.014	0.2959	0.0321
0.75	282.0	-0.1162	0.2593	0.0346
0.75	294.0	-0.5177	0.2549	0.0441
0.85	90.0	0.6354	0.4037	0.065
0.85	102.0	-0.1184	0.3018	0.0332
0.85	114.0	0.0566	0.3305	0.0328
0.85	126.0	-0.2297	0.2932	0.0346
0.85	138.0	-0.1277	0.3159	0.0324
0.85	150.0	-0.0702	0.3834	0.0372
0.85	162.0	0.457	0.4594	0.0478
0.85	246.0	-0.6463	0.2408	0.0538
0.85	258.0	-0.0748	0.2975	0.031
0.85	270.0	0.2077	0.3012	0.0338
0.85	282.0	-0.0516	0.2689	0.0349
0.85	294.0	0.227	0.3505	0.0336
0.95	66.0	-0.0855	0.4189	0.0305
0.95	78.0	-0.9872	0.3674	0.0681
0.95	102.0	0.2279	0.3525	0.0353
0.95	114.0	0.0666	0.2816	0.0399
0.95	126.0	0.0015	0.3191	0.0341
0.95	138.0	-0.0405	0.3124	0.0313
0.95	150.0	-0.2662	0.2989	0.0348
0.95	162.0	0.0416	0.2935	0.0446
0.95	174.0	-0.1115	0.304	0.0356
0.95	186.0	-0.7253	0.3624	0.053
0.95	198.0	-0.8188	0.2189	0.062
0.95	210.0	1.1073	0.9546	0.0731
0.95	246.0	0.5656	0.4407	0.0461
0.95	270.0	-0.8534	0.2414	0.06
0.95	294.0	0.2998	0.6268	0.035

CLAS Physics Database