Measurement E151M1375

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:	0.0458
Q²:	0.0245 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.6987

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	0.1266	0.7974	0.0332
0.25	54.0	0.6788	0.9246	0.0822
0.35	30.0	-0.0259	0.8229	0.0301
0.35	42.0	-0.4191	0.7067	0.056
0.35	54.0	-0.6661	0.6493	0.0809
0.45	18.0	-0.5753	0.9492	0.0715
0.45	30.0	-0.4628	0.8007	0.0602
0.45	42.0	-1.3033	0.5707	0.15
0.45	54.0	0.2998	0.6482	0.0452
0.45	222.0	0.1072	0.804	0.0323
0.45	234.0	-0.2948	0.6974	0.0448
0.45	246.0	-0.8039	0.8802	0.0955
0.55	30.0	-0.7772	0.8696	0.0927
0.55	42.0	-0.7771	0.6497	0.0926
0.55	54.0	-0.4	0.5998	0.0542
0.55	138.0	0.632	0.928	0.0773
0.55	150.0	-0.2039	0.8381	0.0378
0.55	210.0	-0.6325	0.8923	0.0774
0.55	222.0	-0.0387	0.6759	0.0303
0.55	234.0	-0.8146	0.5554	0.0967
0.55	246.0	0.3755	0.5833	0.0519
0.55	258.0	-0.8948	0.5363	0.1053
0.65	138.0	0.1257	0.8188	0.0332
0.65	150.0	0.1119	0.7758	0.0325
0.65	162.0	0.8183	0.81	0.097
0.65	174.0	-0.7319	0.9177	0.0878
0.65	210.0	0.2292	0.8823	0.0396
0.65	222.0	-0.012	0.6347	0.03
0.65	234.0	-0.274	0.5509	0.0431
0.65	246.0	0.9601	0.4843	0.1124
0.65	258.0	-0.3193	0.509	0.0469
0.75	150.0	-1.513	0.7314	0.1733
0.75	162.0	-0.6165	0.7198	0.0757
0.75	174.0	-0.4066	0.7787	0.0548
0.75	210.0	0.1411	0.8931	0.034
0.75	222.0	0.8332	0.6365	0.0986
0.75	234.0	-1.1633	0.5599	0.1346
0.75	246.0	0.078	0.4569	0.0313
0.75	258.0	0.413	0.5427	0.0554
0.75	270.0	-0.8061	0.8425	0.0957
0.85	222.0	-0.1742	0.6375	0.0359
0.85	234.0	-0.1609	0.5649	0.0351
0.85	246.0	0.1527	0.4669	0.0346
0.85	258.0	0.01	0.5137	0.03

CLAS Physics Database