Measurement E151M2033

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:	0.3721
Q²:	0.205 GeV²
W:	1415.0 GeV
E_beam:	2.2596 GeV
ε:	0.9075

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	66.0	-0.9108	0.6876	0.0664
0.45	282.0	-0.4921	0.7114	0.0439
0.65	102.0	1.2029	0.7093	0.0838
0.65	114.0	0.8138	0.8166	0.0609
0.65	258.0	-2.4818	2.4818	0.1642
0.75	90.0	-0.2579	0.6891	0.0344
0.75	102.0	-0.3159	0.6917	0.0364
0.75	114.0	-0.5828	0.6989	0.0483
0.75	126.0	-0.5508	0.8558	0.0467
0.75	234.0	-0.04	0.6535	0.0301
0.75	246.0	-0.0896	0.7107	0.0306
0.75	258.0	-0.8663	0.7819	0.0638
0.75	270.0	-0.1163	0.7227	0.0309
0.85	66.0	0.2952	0.7666	0.0356
0.85	102.0	0.6037	0.6902	0.0494
0.85	114.0	0.7468	0.7647	0.0571
0.85	246.0	-0.7147	0.7594	0.0553
0.85	258.0	-0.7287	0.7465	0.0561
0.85	270.0	-0.4519	0.8484	0.042
0.85	282.0	0.2957	0.8046	0.0356
0.95	258.0	-0.3675	1.0962	0.0384
0.95	270.0	2.5159	1.2313	0.1664
0.95	282.0	-0.2467	1.2238	0.034
0.95	294.0	1.6851	1.0125	0.1137
0.25	78.0	-1.9806	1.1718	0.1845
0.65	102.0	1.0324	1.1355	0.0995
0.65	258.0	-1.7013	0.9111	0.1592
0.75	90.0	0.5829	1.2112	0.0614
0.75	102.0	-1.0489	1.2377	0.101
0.75	114.0	-1.3619	1.3146	0.1287
0.75	126.0	1.9971	1.2497	0.186
0.75	246.0	1.3741	0.9544	0.1298
0.75	258.0	0.1152	1.0566	0.0318
0.75	270.0	0.0972	1.0231	0.0313
0.85	102.0	-0.3624	1.4262	0.0448
0.85	114.0	-1.9863	1.1985	0.185
0.85	246.0	1.6487	1.2588	0.1545
0.85	258.0	0.5481	1.111	0.0586
0.85	270.0	-0.5617	1.2241	0.0597
0.85	282.0	2.9467	1.0201	0.2725
0.85	294.0	1.8809	1.0364	0.1754
0.95	66.0	0.8099	3.943	0.0802
0.95	258.0	0.0263	3.3393	0.0301
0.95	282.0	-0.3597	2.6199	0.0446

CLAS Physics Database