CLAS Physics Database

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Measurement E151M1423

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: A_LL,

Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.0245 GeV²
W :	1205 GeV
ε :	0.9559
E_beam :	1.3383 GeV
ε_L:	0.2317

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LL	Stat. error	Syst. error
0.55	258	0.8862	0.4206	0.0604
0.55	270	-0.6356	0.3439	0.0497
0.55	282	-0.0617	0.4397	0.0442
0.65	246	-0.3064	0.3876	0.0352
0.65	258	0.0503	0.3303	0.0313
0.65	270	0.1299	0.3508	0.042
0.75	150	-0.8606	0.6935	0.0583
0.75	174	-2.2255	2.2255	0.1328
0.75	186	0.0949	0.8042	0.0305
0.75	234	-0.7341	0.612	0.0522
0.75	246	-0.4288	0.5476	0.039
0.75	258	-0.3063	0.5746	0.0349
0.75	270	0.1603	0.6046	0.0314
0.85	138	0.3718	0.7504	0.037
0.85	150	-0.8925	0.5217	0.0599
0.85	162	-0.3403	0.7485	0.0359
0.85	174	-0.1714	0.6701	0.0316
0.85	186	-0.243	0.7485	0.0332
0.85	198	-0.7631	0.583	0.0536
0.85	222	1.1761	0.5052	0.0747
0.65	282	-1.0338	0.5939	0.0688
0.75	246	-0.1748	0.5059	0.0318
0.75	258	0.1608	0.4547	0.0315
0.75	270	-0.3309	0.4519	0.036
0.85	150	-0.0468	0.5882	0.0301
0.85	162	-0.029	0.5214	0.0301
0.85	174	-0.0104	0.4665	0.03
0.85	186	0.9689	0.3781	0.0654
0.85	198	0.7305	0.4645	0.0531