Measurement E151M1309

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:	0.0452
Q²:	0.0121 GeV²
W:	1325.0 GeV
E_beam:	1.0539 GeV
ε:	0.838

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.0095	0.7684
0.35	42.0	-0.4501	0.7068
0.35	54.0	-1.0522	0.7711
0.45	30.0	0.7904	0.8738
0.45	42.0	-0.34	0.6242
0.45	54.0	2.1669	0.5695
0.45	66.0	1.0349	0.8487
0.55	18.0	-0.4739	0.8043
0.55	30.0	-0.9917	0.6171
0.55	42.0	-0.9037	0.554
0.55	54.0	-1.0104	0.5934
0.55	138.0	-0.8474	0.9705
0.55	222.0	-1.1491	0.708
0.55	234.0	0.1338	0.5491
0.55	246.0	-0.6716	0.5268
0.55	258.0	-0.2895	0.6406
0.65	42.0	0.5868	0.7018
0.65	54.0	-1.1097	0.6601
0.65	138.0	-0.1297	0.7979
0.65	150.0	0.219	0.6442
0.65	162.0	0.1413	0.7574
0.65	174.0	-0.3111	0.7547
0.65	210.0	0.4317	0.9022
0.65	222.0	-0.5753	0.6025
0.65	234.0	0.5678	0.4906
0.65	246.0	0.0157	0.4748
0.65	258.0	-0.137	0.55
0.65	270.0	-0.1831	0.7636
0.75	138.0	-0.1656	0.7392
0.75	150.0	0.2913	0.6362
0.75	162.0	-0.7538	0.7534
0.75	174.0	0.5001	0.7527
0.75	186.0	2.7922	2.7922
0.75	222.0	-0.7062	0.513
0.75	234.0	0.0509	0.4234
0.75	246.0	0.2803	0.4128
0.75	258.0	1.0133	0.5394
0.75	270.0	0.4456	0.7756
0.85	138.0	0.8698	0.8116
0.85	222.0	0.118	0.4751
0.85	234.0	-0.0129	0.4634
0.85	246.0	-0.0674	0.4304
0.85	258.0	1.4281	0.4736

CLAS Physics Database