Measurement E151M43

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:	0.0598
Q²:	0.0101 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8964

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	54.0	-0.1859	0.6547
0.45	54.0	-1.0877	0.5112
0.55	42.0	-1.1366	0.4715
0.55	54.0	-0.1852	0.6435
0.55	234.0	-0.0717	0.4339
0.55	246.0	-0.1805	0.3959
0.55	258.0	0.2261	0.4257
0.55	270.0	-0.0251	0.4387
0.65	150.0	-0.5399	0.5521
0.65	162.0	-0.1599	0.6024
0.65	174.0	0.0869	0.6183
0.65	186.0	0.6856	0.6353
0.65	222.0	-0.4961	0.474
0.65	234.0	0.3286	0.469
0.65	246.0	-0.2099	0.3322
0.65	258.0	-0.3019	0.3316
0.65	270.0	-0.2431	0.4748
0.75	150.0	0.5265	0.5551
0.75	162.0	0.9355	0.5577
0.75	186.0	-0.5431	0.5573
0.75	222.0	0.9316	0.5681
0.75	234.0	0.8025	0.404
0.75	246.0	0.3562	0.3528
0.75	258.0	0.1389	0.3593
0.75	270.0	-0.0132	0.4283
0.85	222.0	0.7974	0.636
0.85	234.0	-0.3078	0.4547
0.85	246.0	1.0451	0.4601
0.85	258.0	0.1198	0.4705

CLAS Physics Database