Measurement E151M2185

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:	0.9653
Q²:	0.2915 GeV²
W:	1265.0 GeV
E_beam:	2.999 GeV
ε:	0.9617

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	66.0	0.9453	0.681
0.15	54.0	-1.2353	0.6619
0.15	66.0	0.1303	0.5074
0.25	66.0	-0.1857	0.5539
0.25	78.0	-0.5331	0.8139
0.35	66.0	0.8141	0.6153
0.35	78.0	1.1766	0.7968
0.35	282.0	0.1923	0.6891
0.35	294.0	0.294	0.6737
0.45	282.0	-0.561	0.5581
0.45	294.0	-0.8655	0.5756
0.55	78.0	-0.1477	0.7902
0.55	90.0	-0.6612	0.8284
0.55	270.0	-0.1233	0.5826
0.55	282.0	1.0477	0.5007
0.55	294.0	0.2182	0.5393
0.55	306.0	-0.7779	0.6931
0.65	66.0	0.2414	0.5757
0.65	78.0	-0.2856	0.5238
0.65	90.0	-0.18	0.463
0.65	270.0	-0.6758	0.4658
0.65	282.0	0.4012	0.4246
0.65	294.0	-0.3461	0.4091
0.65	306.0	0.2532	0.6055
0.75	54.0	0.8437	0.7541
0.75	66.0	1.0016	0.4401
0.75	78.0	-0.0608	0.4026
0.75	90.0	0.3952	0.4594
0.75	102.0	-0.1103	0.5444
0.75	258.0	0.8967	0.4756
0.75	270.0	0.2445	0.4223
0.75	282.0	0.4347	0.4294
0.75	294.0	-0.2565	0.4159
0.75	306.0	0.6095	0.5159
0.85	54.0	0.188	0.554
0.85	66.0	0.154	0.3933
0.85	78.0	-0.3956	0.4111
0.85	90.0	-0.1715	0.4029
0.85	102.0	0.1322	0.48
0.85	114.0	-0.0837	0.4932
0.85	126.0	-1.5721	0.6515
0.85	234.0	0.5559	0.8228
0.85	246.0	-0.3564	0.5727
0.85	258.0	0.4626	0.469
0.85	270.0	-0.1482	0.4352
0.85	282.0	0.7905	0.4228
0.85	294.0	0.02	0.4995
0.85	306.0	-0.163	0.4263
0.85	318.0	-0.0096	0.53
0.95	42.0	-0.0258	0.5964
0.95	54.0	0.7394	0.5702
0.95	66.0	0.4948	0.4961
0.95	78.0	1.2837	0.4528
0.95	90.0	-0.9004	0.502
0.95	102.0	0.44	0.5133
0.95	114.0	0.0365	0.5487
0.95	126.0	0.9882	0.4548
0.95	138.0	0.1035	0.7061
0.95	234.0	-0.7621	0.7239
0.95	246.0	0.6672	0.6177
0.95	258.0	0.6506	0.5262
0.95	270.0	0.7212	0.5087
0.95	282.0	0.4584	0.4692
0.95	294.0	-0.0128	0.5632
0.95	306.0	1.7006	0.4949
0.95	318.0	0.6608	0.672

CLAS Physics Database