Measurement E151M1700

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:	0.6139
Q²:	0.101 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9604

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	-0.1631	0.6362
0.45	66.0	-0.9338	0.6641
0.45	78.0	-0.1327	0.4333
0.45	282.0	0.5904	0.5862
0.55	78.0	-0.1332	0.4804
0.55	270.0	0.7314	0.4782
0.55	282.0	0.7561	0.4281
0.65	258.0	-0.4329	0.6171
0.65	270.0	-0.0547	0.4119
0.65	282.0	-0.4493	0.4444
0.75	102.0	-0.2227	0.6904
0.75	114.0	0.5208	0.5848
0.75	258.0	-0.4766	0.4365
0.75	270.0	-0.3434	0.4144
0.75	282.0	0.1285	0.6075
0.85	90.0	-0.4168	0.5546
0.85	102.0	0.3535	0.423
0.85	114.0	-0.5625	0.4196
0.85	126.0	-0.1888	0.4162
0.85	138.0	0.5128	0.472
0.85	246.0	0.0772	0.4925
0.85	258.0	0.0747	0.4955
0.85	270.0	-0.3156	0.496
0.95	102.0	0.3338	0.4371
0.95	114.0	0.611	0.3963
0.95	126.0	0.3058	0.4456
0.95	138.0	0.1622	0.5051
0.95	150.0	0.224	0.4258
0.95	162.0	1.3276	0.4467
0.95	174.0	-0.6465	0.4894
0.95	186.0	0.22	0.5656
0.95	198.0	0.2713	0.5533
0.95	210.0	0.6996	0.5196
0.95	234.0	-0.0538	0.579

CLAS Physics Database