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 E39M189

You are not logged in.

Experiment: E1-5st-Sigma0 (E93-030/E00-112), 1999

Spokespersons: Mestayer, Hicks, Carman, Raue

Experiment comment: 5 structure function group analysis results for the K⁺Σ⁰ channel.

Measurement comment: Differential cross sections for two different torus currents, 1500A and 2250A at 2.567GeV beam energy, were combined using error weighted average.

Publication:

D.S. Carman, B.A. Raue, and CLAS Collaboration Beam-Recoil Polarization Transfer in the Nucleon Resonance Region in the Exclusive ep -> e′K⁺Λ and ep -> e′K⁺Σ⁰ Reactions at CLAS // PRC 79, 065205 (2009)

Quantity measured: dσ/dΩ, nb/sr
Differential cross section.
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K⁺ Σ⁰, polarization: none

Q² :	1 GeV²
W :	2.05 GeV
ε :	0.119304

Select data slice:
cos(θ) =

Fit φ dependence:

Observable quantity measured (Y axis): dσ/dΩ, nb/sr
Plot measurement data

Parameter (X axis): φ,

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:

cos(θ)	φ	dσ/dΩ, nb/sr	Data errors, nb/sr
-0.6	-157.5	16.103634	11.911349
-0.6	-112.5	11.362904	8.452309
-0.6	-67.5	0	0
-0.6	-22.5	0	0
-0.6	22.5	10.840788	9.90069
-0.6	67.5	0	0
-0.6	112.5	0	0
-0.6	157.5	37.183952	18.360741
-0.25	-157.5	15.804242	21.222486
-0.25	-112.5	29.616899	13.427914
-0.25	-67.5	24.808477	12.356125
-0.25	-22.5	0	0
-0.25	22.5	9.933482	8.399384
-0.25	67.5	14.718625	11.067437
-0.25	112.5	33.670776	15.785856
-0.25	157.5	27.62104	15.697625
0.05	-165	41.881721	22.546291
0.05	-135	8.970934	9.112707
0.05	-105	10.663969	8.199459
0.05	-75	37.213196	21.129549
0.05	-45	42.926575	18.141356
0.05	-15	40.868351	20.700523
0.05	15	0	0
0.05	45	46.240845	16.283396
0.05	75	23.199221	14.493001
0.05	105	33.484856	15.583677
0.05	135	35.867237	15.331008
0.05	165	31.09973	17.673723
0.35	-165	32.86203	15.272648
0.35	-135	36.743423	21.935677
0.35	-105	27.592529	14.71655
0.35	-75	19.658026	11.12935
0.35	-45	17.420116	11.817258
0.35	-15	18.041672	13.5457
0.35	15	0	0
0.35	45	14.917465	20.045433
0.35	75	18.682014	10.915828
0.35	105	23.304136	13.111012
0.35	135	52.151295	22.788773
0.35	165	25.882193	23.251526
0.65	-165	22.513569	15.347528
0.65	-135	32.851028	22.371292
0.65	-105	42.003242	23.953392
0.65	-75	24.781172	17.502918
0.65	-45	57.036064	34.380161
0.65	-15	47.696297	49.565647
0.65	15	88.16494	68.571693
0.65	45	85.361839	42.673073
0.65	75	19.385082	14.021149
0.65	105	34.928219	16.582428
0.65	135	42.809692	19.113731
0.65	165	32.60577	20.113972