Measurement E151M633

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:	0.2065
Q²:	0.205 GeV²
W:	1535.0 GeV
E_beam:	1.9889 GeV
ε:	0.8083

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	282.0	-0.3928	0.6604
0.35	294.0	-0.0582	0.6924
0.45	282.0	-1.0139	0.6244
0.45	294.0	0.3923	0.7535
0.55	114.0	-0.3574	0.7322
0.55	306.0	-1.1823	0.5658
0.65	102.0	-1.2312	0.5712
0.65	114.0	-1.0973	0.517
0.65	222.0	1.5862	0.8145
0.65	234.0	0.9818	0.7535
0.75	102.0	-0.6333	0.5908
0.75	114.0	-0.9386	0.55
0.75	138.0	-0.7574	0.7177
0.75	210.0	0.6759	0.7408
0.75	222.0	-0.1646	0.7314
0.75	234.0	0.4609	0.7499
0.75	246.0	1.0666	0.6617
0.75	258.0	0.251	0.8171
0.85	78.0	0.8652	0.7892
0.85	90.0	-0.322	0.6101
0.85	138.0	-0.6065	0.6361
0.85	210.0	1.4194	0.7252
0.85	222.0	0.1762	0.5912
0.85	234.0	0.3835	0.6086
0.85	246.0	0.1058	0.5472
0.85	258.0	1.8536	0.6523
0.95	222.0	1.0065	0.7154
0.95	246.0	1.8415	0.6578
0.95	258.0	0.3338	0.5796
0.95	270.0	-0.1456	0.5796
0.95	282.0	0.765	0.6702

CLAS Physics Database