Measurement E151M1247

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:	0.1257
Q²:	0.0171 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9121

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.5428	0.5074
0.25	54.0	0.5264	0.5832
0.35	30.0	-0.2166	0.5987
0.35	42.0	-0.3432	0.4127
0.35	54.0	0.6507	0.4626
0.35	66.0	1.2563	0.6209
0.45	42.0	-0.6547	0.4358
0.45	54.0	-0.8234	0.4097
0.45	258.0	-0.5633	0.4955
0.45	270.0	-0.8504	0.4454
0.45	282.0	-0.8194	0.4937
0.55	54.0	0.6304	0.5817
0.55	234.0	0.074	0.6208
0.55	246.0	0.0746	0.39
0.55	258.0	0.0281	0.3193
0.55	270.0	-0.0059	0.3535
0.55	282.0	0.3625	0.3927
0.65	150.0	-0.2469	0.6396
0.65	162.0	0.1301	0.5619
0.65	174.0	0.0305	0.6622
0.65	198.0	-0.1623	0.6016
0.65	222.0	-1.3015	0.5271
0.65	234.0	-0.4091	0.3902
0.65	246.0	0.6385	0.3185
0.65	258.0	-0.0882	0.244
0.65	270.0	-0.4149	0.2534
0.65	282.0	0.1165	0.3997
0.75	138.0	0.7698	0.5574
0.75	150.0	0.5043	0.4466
0.75	162.0	-0.3081	0.4311
0.75	174.0	-0.0075	0.3766
0.75	186.0	-0.3812	0.3863
0.75	198.0	-0.0724	0.4615
0.75	210.0	0.7158	0.5344
0.75	222.0	0.083	0.4784
0.75	234.0	0.7823	0.3301
0.75	246.0	-0.2983	0.2901
0.75	258.0	-0.3275	0.2957
0.75	270.0	-0.042	0.3177
0.75	282.0	-0.1985	0.551
0.85	138.0	-0.5053	0.6253
0.85	150.0	-0.4047	0.4949
0.85	162.0	-0.1245	0.4728
0.85	174.0	-0.3617	0.349
0.85	186.0	-0.5696	0.4249
0.85	198.0	0.0542	0.4101
0.85	210.0	-0.2535	0.5718
0.85	222.0	0.3437	0.5646
0.85	234.0	-0.1965	0.4128
0.85	246.0	0.619	0.3766
0.85	258.0	-0.4332	0.4161
0.85	270.0	1.0077	0.5064

CLAS Physics Database