Measurement E151M1347

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:	0.0147
Q²:	0.0059 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7684

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	42.0	0.4311	0.9174
0.55	54.0	-0.7543	0.8634
0.55	222.0	-0.8992	0.8813
0.55	234.0	-0.3476	0.6939
0.55	246.0	0.9265	0.8383
0.65	54.0	-0.7316	0.8397
0.65	222.0	0.9633	0.8534
0.65	234.0	0.3435	0.77
0.65	246.0	-0.3176	0.7547
0.75	222.0	0.7079	0.7173
0.75	234.0	-0.9801	0.762
0.75	246.0	-0.6274	0.8219
0.85	234.0	1.1881	0.8113
0.85	246.0	0.4928	0.8487

CLAS Physics Database