Measurement E151M1290

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:	0.093
Q²:	0.0205 GeV²
W:	1295.0 GeV
E_beam:	1.0539 GeV
ε:	0.8603

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	-0.1365	0.7894
0.25	42.0	0.1386	0.6285
0.25	54.0	-0.3621	0.6796
0.35	42.0	0.4476	0.5954
0.35	54.0	0.3975	0.5202
0.35	66.0	1.0206	0.7552
0.45	30.0	-0.5068	0.6001
0.45	42.0	-0.6057	0.5494
0.45	54.0	1.2825	0.6225
0.45	246.0	0.4573	0.7399
0.45	258.0	-0.8365	0.6771
0.55	42.0	0.8886	0.6123
0.55	54.0	-0.634	0.5197
0.55	222.0	-0.0717	0.7564
0.55	234.0	0.1153	0.4902
0.55	246.0	0.0543	0.4386
0.55	258.0	0.0096	0.3932
0.55	270.0	0.3709	0.4374
0.65	150.0	-0.5023	0.6651
0.65	162.0	0.4916	0.763
0.65	174.0	0.4578	0.6253
0.65	186.0	1.3402	0.7452
0.65	210.0	-0.376	0.655
0.65	222.0	-0.1979	0.5658
0.65	234.0	0.1691	0.4319
0.65	246.0	0.4096	0.3409
0.65	258.0	0.1988	0.3383
0.65	270.0	-0.0691	0.4595
0.75	126.0	0.1452	0.7312
0.75	138.0	-0.2869	0.5793
0.75	150.0	0.7059	0.5534
0.75	162.0	0.0569	0.6348
0.75	174.0	-0.5013	0.5096
0.75	186.0	0.1298	0.7161
0.75	198.0	1.2625	0.6227
0.75	210.0	-0.3493	0.6004
0.75	222.0	0.65	0.5401
0.75	234.0	0.2377	0.41
0.75	246.0	0.2672	0.3524
0.75	258.0	0.2459	0.3566
0.75	270.0	0.401	0.4309
0.75	282.0	-0.9965	0.6408
0.85	138.0	0.0399	0.6437
0.85	150.0	0.3843	0.566
0.85	162.0	1.3236	0.5606
0.85	174.0	-0.3062	0.6814
0.85	198.0	-0.3683	0.7047
0.85	210.0	-0.0754	0.6808
0.85	222.0	-0.4403	0.5201
0.85	234.0	0.5817	0.4
0.85	246.0	-0.2341	0.3545
0.85	258.0	0.0455	0.3268
0.85	270.0	0.1274	0.4531

CLAS Physics Database