CLAS Physics Database

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Measurement E39M219

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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 section were extracted by combining yields of the data pertaining to two different beam energies, 4.056 and 4.247 GeV.

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 :	2.55 GeV²
W :	2.25 GeV
ε :	0.140719

Select data slice:
cos(θ) =

Fit φ dependence:

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

Parameter (X axis): φ,

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Measured data:

cos(θ)	φ	dσ/dΩ, nb/sr	Data errors, nb/sr
-0.6	-157.5	0	0
-0.6	-112.5	0	0
-0.6	-67.5	0	0
-0.6	-22.5	0	0
-0.6	22.5	0	0
-0.6	67.5	0	0
-0.6	112.5	0	0
-0.6	157.5	0	0
-0.25	-157.5	0	0
-0.25	-112.5	0	0
-0.25	-67.5	0	0
-0.25	-22.5	0	0
-0.25	22.5	0	0
-0.25	67.5	0	0
-0.25	112.5	0	0
-0.25	157.5	0	0
0.05	-157.5	7.910738	5.709544
0.05	-112.5	12.191876	6.816411
0.05	-67.5	6.385634	5.644485
0.05	-22.5	14.187807	7.932389
0.05	22.5	5.58802	4.939458
0.05	67.5	3.18482	3.981143
0.05	112.5	9.777736	6.111759
0.05	157.5	13.09354	7.320511
0.35	-165	0	0
0.35	-135	19.217121	12.012015
0.35	-105	18.6278	10.41475
0.35	-75	4.040355	5.050576
0.35	-45	0	0
0.35	-15	12.482965	15.604216
0.35	15	12.553535	15.692427
0.35	45	0	0
0.35	75	12.082182	8.720255
0.35	105	11.256434	8.12432
0.35	135	45.302162	20.257341
0.35	165	0	0