Measurement E151M2546

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_LU
ε_L:	0.0071
Q²:	0.0023 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8132

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	42.0	0.556	0.231	0.032
0.55	42.0	-0.1597	0.2095	0.0302
0.55	54.0	-0.4985	0.196	0.0316
0.55	222.0	0.1449	0.2014	0.0301
0.55	234.0	0.1644	0.2279	0.0302
0.55	246.0	0.0096	0.1697	0.03
0.65	30.0	-0.2479	0.2355	0.0304
0.65	42.0	0.0719	0.2057	0.03
0.65	54.0	-0.4521	0.1637	0.0313
0.65	162.0	-0.0441	0.2418	0.03
0.65	210.0	-0.0505	0.2539	0.03
0.65	222.0	-0.022	0.221	0.03
0.65	234.0	0.2072	0.1475	0.0303
0.65	246.0	-0.1621	0.1529	0.0302
0.65	258.0	-0.3372	0.2434	0.0307
0.75	42.0	-0.4768	0.1998	0.0315
0.75	54.0	-0.126	0.2244	0.0301
0.75	150.0	-0.0675	0.2123	0.03
0.75	210.0	0.5164	0.2189	0.0317
0.75	222.0	-0.0041	0.219	0.03
0.75	234.0	0.2324	0.1759	0.0304
0.75	246.0	-0.4629	0.1787	0.0314
0.75	258.0	-0.262	0.2464	0.0305
0.85	138.0	-0.0264	0.2313	0.03
0.85	222.0	0.1098	0.1803	0.0301
0.85	234.0	-0.3033	0.1882	0.0306
0.85	246.0	0.4067	0.1913	0.0311

CLAS Physics Database