Measurement E151M1623

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:	0.1491
Q²:	0.1715 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.5978

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	234.0	-1.4104	0.9929
0.65	222.0	-2.1681	2.1681
0.65	234.0	1.9467	0.5011
0.65	246.0	-1.8829	0.5263
0.75	222.0	-0.4212	1.1156
0.75	258.0	0.8725	0.9893
0.85	222.0	-0.4139	1.0558
0.85	246.0	-0.3855	0.9363
0.85	258.0	0.1639	0.9711
0.85	270.0	1.1415	0.8715
0.95	246.0	-0.4439	0.8875
0.95	270.0	0.4359	0.857
0.55	246.0	0.1819	0.8577
0.65	126.0	0.5626	0.8713
0.65	222.0	1.0352	0.7533
0.65	234.0	-1.0426	0.7458
0.75	234.0	-0.7619	0.7176
0.75	246.0	-0.8226	0.8773
0.75	258.0	-0.5989	0.7655
0.85	234.0	-0.2042	0.798
0.85	246.0	1.209	0.6589
0.85	258.0	-0.8259	0.7192

CLAS Physics Database