Measurement E151M164

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:	0.0095
Q²:	0.0059 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6685

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	42.0	-0.257	0.7149
0.45	54.0	0.2259	0.6083
0.45	222.0	0.743	0.8379
0.55	42.0	0.706	0.8176
0.55	54.0	0.4295	0.7216
0.55	222.0	1.3553	0.6832
0.55	234.0	-0.132	0.673
0.55	246.0	-0.7121	0.6347
0.65	222.0	-0.2421	0.6004
0.65	234.0	0.2028	0.7627
0.65	246.0	0.179	0.624
0.75	222.0	-0.4458	0.647
0.75	234.0	-0.3191	0.5335
0.75	246.0	0.2688	0.634
0.85	222.0	-0.3302	0.6957
0.85	234.0	0.8502	0.6784

CLAS Physics Database