Measurement E151M1423

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:	0.2317
Q²:	0.0245 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9559

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	258.0	0.8862	0.4206	0.0604
0.55	270.0	-0.6356	0.3439	0.0497
0.55	282.0	-0.0617	0.4397	0.0442
0.65	246.0	-0.3064	0.3876	0.0352
0.65	258.0	0.0503	0.3303	0.0313
0.65	270.0	0.1299	0.3508	0.042
0.75	150.0	-0.8606	0.6935	0.0583
0.75	174.0	-2.2255	2.2255	0.1328
0.75	186.0	0.0949	0.8042	0.0305
0.75	234.0	-0.7341	0.612	0.0522
0.75	246.0	-0.4288	0.5476	0.039
0.75	258.0	-0.3063	0.5746	0.0349
0.75	270.0	0.1603	0.6046	0.0314
0.85	138.0	0.3718	0.7504	0.037
0.85	150.0	-0.8925	0.5217	0.0599
0.85	162.0	-0.3403	0.7485	0.0359
0.85	174.0	-0.1714	0.6701	0.0316
0.85	186.0	-0.243	0.7485	0.0332
0.85	198.0	-0.7631	0.583	0.0536
0.85	222.0	1.1761	0.5052	0.0747
0.65	282.0	-1.0338	0.5939	0.0688
0.75	246.0	-0.1748	0.5059	0.0318
0.75	258.0	0.1608	0.4547	0.0315
0.75	270.0	-0.3309	0.4519	0.036
0.85	150.0	-0.0468	0.5882	0.0301
0.85	162.0	-0.029	0.5214	0.0301
0.85	174.0	-0.0104	0.4665	0.03
0.85	186.0	0.9689	0.3781	0.0654
0.85	198.0	0.7305	0.4645	0.0531

CLAS Physics Database