Measurement E151M2229

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:	0.5982
Q²:	0.348 GeV²
W:	1385.0 GeV
E_beam:	2.999 GeV
ε:	0.9374

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	66.0	-0.2546	0.8142
0.15	66.0	-0.4174	0.7753
0.15	294.0	0.8304	0.7071
0.25	54.0	0.9415	0.8228
0.25	294.0	0.1381	0.8487
0.35	282.0	-0.1118	0.8701
0.45	90.0	1.6445	0.7425
0.55	78.0	0.2815	0.7231
0.55	90.0	0.527	0.7703
0.55	102.0	0.2386	0.6688
0.55	258.0	1.1404	0.7934
0.65	66.0	-0.6016	0.7591
0.65	78.0	0.8798	0.579
0.65	90.0	0.9642	0.5011
0.65	102.0	-0.6274	0.6336
0.65	114.0	0.5323	0.7902
0.65	258.0	-0.3013	0.6906
0.65	270.0	-0.0093	0.6569
0.65	282.0	1.858	0.5877
0.65	294.0	-0.0309	0.7445
0.75	54.0	0.6911	0.6394
0.75	66.0	0.9853	0.9032
0.75	78.0	1.0162	0.5054
0.75	90.0	0.0999	0.5562
0.75	102.0	0.6644	0.5389
0.75	114.0	0.3397	0.7077
0.75	126.0	-0.5285	0.8286
0.75	234.0	0.4098	0.7775
0.75	246.0	-0.1523	0.5823
0.75	258.0	0.1799	0.5572
0.75	270.0	0.0532	0.5185
0.75	282.0	0.6907	0.5735
0.75	294.0	-0.0427	0.5403
0.75	306.0	-0.0142	0.7116
0.85	42.0	1.0589	0.8091
0.85	54.0	1.3285	0.7253
0.85	78.0	0.7221	0.5467
0.85	90.0	-0.3161	0.5239
0.85	102.0	-0.0167	0.5384
0.85	114.0	0.2324	0.6414
0.85	126.0	0.2194	0.7008
0.85	138.0	-0.0169	0.8393
0.85	210.0	-0.2594	0.7515
0.85	222.0	-0.1588	0.6259
0.85	234.0	0.1617	0.623
0.85	246.0	0.9639	0.5034
0.85	258.0	0.1944	0.5332
0.85	270.0	0.0188	0.4627
0.85	282.0	0.3802	0.4572
0.85	294.0	0.7074	0.472
0.85	306.0	-0.0396	0.4699
0.85	318.0	-0.3946	0.4894
0.95	78.0	-0.8913	0.6429
0.95	90.0	1.4382	0.5985
0.95	102.0	1.2267	0.6684
0.95	114.0	1.0757	0.8468
0.95	186.0	-0.2028	0.7442
0.95	198.0	0.2877	0.7745
0.95	210.0	0.6353	0.8054
0.95	222.0	0.4664	0.6284
0.95	234.0	0.3571	0.5561
0.95	246.0	-0.8294	0.6124
0.95	258.0	0.9146	0.5309
0.95	270.0	0.6612	0.5341
0.95	282.0	0.1028	0.5336
0.95	294.0	0.6388	0.5621
0.95	306.0	0.4906	0.4967
0.95	318.0	0.7653	0.5948
0.95	330.0	-0.2621	0.5382

CLAS Physics Database