Formulation of spin 7/2 and 9/2 nucleon resonance amplitudes for kaon photoproduction off a proton

Journal Article · Tue Apr 19 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946915· OSTI ID:22606693

Mart, T. ^[1]

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1. Departemen Fisika, FMIPA, Universitas Indonesia, Kampus UI Depok (Indonesia)

We have constructed the formulation of scattering amplitude for kaon photoproduction off a proton that includes nucleon resonances with spins 7/2 and 9/2. To this end we start with the formalism of projection operator for higher spins and derive the spins 7/2 and 9/2 projection operators. The corresponding Feynman propagators are obtained from these projection operators. To calculate the scattering amplitude we use the vertex factor proposed by Pascalutsa. The scattering amplitudes are then decomposed into six Lorentz- and gauge-invariant amplitudes, from which the cross section and polarization observables can be calculated.

• OSTI ID: 22606693
• Journal Information: AIP Conference Proceedings, Vol. 1729, Issue 1; Conference: ISCPMS 2015: 1. international symposium on current progress in mathematics and sciences, Depok (Indonesia), 3-4 Nov 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
GAUGE INVARIANCE
KAONS
PHOTOPRODUCTION
POLARIZATION
PROJECTION OPERATORS
PROPAGATOR
PROTONS
RESONANCE
SCATTERING
SCATTERING AMPLITUDES
SPIN
FUNDAMENTAL INTERACTIONS