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
0.25	54.0	-0.1476	0.9257
0.35	30.0	-1.4165	0.8354
0.35	42.0	0.1479	0.5918
0.35	54.0	0.0449	0.654
0.45	30.0	1.4008	0.7121
0.45	42.0	0.2437	0.6354
0.45	54.0	-0.1278	0.5515
0.45	66.0	-0.2376	0.9062
0.45	222.0	-1.0976	0.6805
0.45	234.0	-0.5319	0.6634
0.45	246.0	0.4731	0.7316
0.55	30.0	-0.4967	0.6974
0.55	42.0	0.5521	0.6745
0.55	54.0	-0.3066	0.6077
0.55	66.0	0.5321	0.9187
0.55	138.0	0.1223	0.9138
0.55	150.0	0.5871	0.8991
0.55	162.0	0.487	0.8763
0.55	186.0	-0.341	0.9158
0.55	210.0	0.1442	0.8818
0.55	222.0	0.095	0.6942
0.55	234.0	-0.2108	0.5909
0.55	246.0	-0.3398	0.5675
0.65	54.0	0.0297	0.8718
0.65	150.0	1.1809	0.8077
0.65	162.0	-0.7303	0.8746
0.65	174.0	-1.5538	0.8969
0.65	186.0	0.6333	0.8973
0.65	210.0	1.0477	0.7433
0.65	222.0	-1.4442	0.5508
0.65	234.0	-0.5602	0.5495
0.65	246.0	0.5322	0.5023
0.65	258.0	0.2462	0.7112
0.75	162.0	-1.0049	0.9239
0.75	174.0	-1.0957	0.7548
0.75	210.0	0.9667	0.7147
0.75	222.0	-0.429	0.6362
0.75	234.0	-0.2275	0.6774
0.75	246.0	0.0322	0.5506
0.75	258.0	-0.0108	0.789
0.85	210.0	-1.5932	0.7003
0.85	222.0	-0.8087	0.62
0.85	234.0	-0.7503	0.6017
0.85	246.0	-0.0034	0.6814
0.85	258.0	0.412	0.646

CLAS Physics Database