Measurement E151M1390

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:	0.0188
Q²:	0.0121 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6605

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	54.0	-0.1476	0.9257	0.0343
0.35	30.0	-1.4165	0.8354	0.1626
0.35	42.0	0.1479	0.5918	0.0343
0.35	54.0	0.0449	0.654	0.0304
0.45	30.0	1.4008	0.7121	0.1608
0.45	42.0	0.2437	0.6354	0.0407
0.45	54.0	-0.1278	0.5515	0.0333
0.45	66.0	-0.2376	0.9062	0.0402
0.45	222.0	-1.0976	0.6805	0.1274
0.45	234.0	-0.5319	0.6634	0.0671
0.45	246.0	0.4731	0.7316	0.0612
0.55	30.0	-0.4967	0.6974	0.0635
0.55	42.0	0.5521	0.6745	0.0691
0.55	54.0	-0.3066	0.6077	0.0458
0.55	66.0	0.5321	0.9187	0.0671
0.55	138.0	0.1223	0.9138	0.033
0.55	150.0	0.5871	0.8991	0.0727
0.55	162.0	0.487	0.8763	0.0626
0.55	186.0	-0.341	0.9158	0.0488
0.55	210.0	0.1442	0.8818	0.0341
0.55	222.0	0.095	0.6942	0.0319
0.55	234.0	-0.2108	0.5909	0.0383
0.55	246.0	-0.3398	0.5675	0.0487
0.65	54.0	0.0297	0.8718	0.0302
0.65	150.0	1.1809	0.8077	0.1365
0.65	162.0	-0.7303	0.8746	0.0877
0.65	174.0	-1.5538	0.8969	0.1778
0.65	186.0	0.6333	0.8973	0.0775
0.65	210.0	1.0477	0.7433	0.1219
0.65	222.0	-1.4442	0.5508	0.1656
0.65	234.0	-0.5602	0.5495	0.0699
0.65	246.0	0.5322	0.5023	0.0671
0.65	258.0	0.2462	0.7112	0.0409
0.75	162.0	-1.0049	0.9239	0.1172
0.75	174.0	-1.0957	0.7548	0.1272
0.75	210.0	0.9667	0.7147	0.1131
0.75	222.0	-0.429	0.6362	0.0569
0.75	234.0	-0.2275	0.6774	0.0395
0.75	246.0	0.0322	0.5506	0.0302
0.75	258.0	-0.0108	0.789	0.03
0.85	210.0	-1.5932	0.7003	0.1822
0.85	222.0	-0.8087	0.62	0.096
0.85	234.0	-0.7503	0.6017	0.0898
0.85	246.0	-0.0034	0.6814	0.03
0.85	258.0	0.412	0.646	0.0553

CLAS Physics Database