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	syst. uncert.
0.55	234.0	-1.4104	0.9929	0.0873
0.65	222.0	-2.1681	2.1681	0.1296
0.65	234.0	1.9467	0.5011	0.1171
0.65	246.0	-1.8829	0.5263	0.1135
0.75	222.0	-0.4212	1.1156	0.0387
0.75	258.0	0.8725	0.9893	0.0589
0.85	222.0	-0.4139	1.0558	0.0385
0.85	246.0	-0.3855	0.9363	0.0374
0.85	258.0	0.1639	0.9711	0.0315
0.85	270.0	1.1415	0.8715	0.0728
0.95	246.0	-0.4439	0.8875	0.0396
0.95	270.0	0.4359	0.857	0.0393
0.55	246.0	0.1819	0.8577	0.0319
0.65	126.0	0.5626	0.8713	0.0451
0.65	222.0	1.0352	0.7533	0.0689
0.65	234.0	-1.0426	0.7458	0.0693
0.75	234.0	-0.7619	0.7176	0.0546
0.75	246.0	-0.8226	0.8773	0.0577
0.75	258.0	-0.5989	0.7655	0.0468
0.85	234.0	-0.2042	0.798	0.0324
0.85	246.0	1.209	0.6589	0.0784
0.85	258.0	-0.8259	0.7192	0.0579

CLAS Physics Database