Measurement E151M2176

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:	1.1922
Q²:	0.348 GeV²
W:	1235.0 GeV
E_beam:	2.999 GeV
ε:	0.9589

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	66.0	0.5906	0.7448
0.15	66.0	-0.9435	0.7278
0.25	66.0	0.3648	0.7149
0.35	66.0	-1.1337	0.6933
0.35	282.0	-0.0726	0.7507
0.35	294.0	0.2726	0.6499
0.45	282.0	-0.4554	0.643
0.45	294.0	0.3184	0.6291
0.55	270.0	-0.6748	0.6013
0.55	282.0	0.0627	0.5258
0.55	294.0	0.5243	0.501
0.65	66.0	0.1194	0.613
0.65	78.0	-0.1446	0.5975
0.65	90.0	0.3941	0.6097
0.65	270.0	-0.6499	0.4877
0.65	282.0	0.5196	0.5349
0.65	294.0	0.3218	0.4971
0.65	306.0	-0.8141	0.6864
0.75	54.0	-0.4886	0.6174
0.75	66.0	0.3584	0.5141
0.75	78.0	-0.4316	0.6553
0.75	90.0	-0.9651	0.4903
0.75	102.0	-0.9712	0.6051
0.75	258.0	-1.1078	0.603
0.75	270.0	-0.0615	0.5073
0.75	282.0	0.3889	0.5041
0.75	294.0	-0.7319	0.4638
0.75	306.0	1.0467	0.575
0.85	54.0	1.221	0.5194
0.85	66.0	-0.1731	0.5393
0.85	78.0	0.5417	0.471
0.85	90.0	-0.2947	0.5416
0.85	102.0	-0.7864	0.4546
0.85	114.0	-0.3579	0.7024
0.85	258.0	-0.7136	0.6966
0.85	270.0	-0.2261	0.545
0.85	282.0	0.0253	0.6252
0.85	294.0	0.6377	0.5256
0.85	306.0	0.2673	0.5171
0.85	318.0	-0.6706	0.5525
0.95	54.0	0.1753	0.5338
0.95	66.0	-0.008	0.6938
0.95	78.0	0.1753	0.6124
0.95	90.0	-0.3378	0.5104
0.95	102.0	0.4852	0.6892
0.95	114.0	-0.6848	0.687
0.95	282.0	-0.5404	0.5778

CLAS Physics Database