CLAS Physics Database

Your browser does not support JavaScript or JavaScript is turned off in your browser. It is strongly recommended to turn JavaScript on to view this page. Some features may not work if JavaScript is turned off.

Measurement E8M47

You are not logged in.

Experiment: E89-038 CLAS experiment, 1999

Spokespersons: V. Burkert, R. Minehart

Experiment comment: Beam energy 1.515 GeV. Global 5.8% scaling systematic uncertainty for all data points

Measurement comment: Global 5.8% scaling systematic uncertainty

Publication:

under preparation //

Quantity measured: dσ/dΩ, mcbn/sterad
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: π⁺n, polarization: none

Q² :	0.35 — 0.45 GeV²
W :	1.54 — 1.56 GeV
E_beam :	1.515 GeV

Select data slice:
θ_π = deg

Fit φ dependence:

Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Plot measurement data

Parameter (X axis): φ_π, deg

Click here to view sliced data.

Your browser must support Java to use this feature.
You can find appropriate software at www.java.com

Click here to view 3D plot of the data.

Your must have VRML plugin for your browser installed to see this type of 3D plots.
For some types of browsers you can find it here: www.parallelgraphics.com

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

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

θ_π, deg	φ_π, deg	dσ/dΩ, mcbn/sterad	Data errors, mcbn/sterad	Systematic errors, mcbn/sterad
22.5	195	3.462	0.6397	0.284
37.5	75	5.125	1.261	0.4728
37.5	285	3.899	0.9433	0.4386
52.5	75	2.787	0.7493	0.7092
52.5	285	4.084	1.679	0.7245
67.5	45	1.255	0.3976	0.1483
67.5	165	1.368	0.5225	0.1494
67.5	195	1.003	0.2446	0.143
67.5	225	1.465	0.5321	0.1584
67.5	315	1.14	0.2714	0.1419
82.5	105	2.263	0.8934	0.277
82.5	135	0.6866	0.1598	0.2537
82.5	165	1.068	0.3181	0.2568
82.5	195	0.7825	0.1469	0.2529
82.5	255	1.746	0.7145	0.2643
97.5	45	1.455	0.4895	0.3375
97.5	75	2.302	0.5946	0.3484
97.5	105	2.186	0.6516	0.346
97.5	135	1.022	0.1301	0.3319
97.5	255	2.004	0.4411	0.354
97.5	285	1.534	0.3573	0.3387
97.5	315	1.976	0.8871	0.3489
112.5	105	2.635	1.065	0.113
112.5	255	1.457	0.1879	0.3895
112.5	285	1.628	0.5784	0.3888
127.5	105	1.491	0.5345	0.08686
142.5	75	1.134	0.4237	0.06582