K+ LAMBDA PHOTOPRODUCTION AMPLITUDES INCORPORATING ABSORPTIVE EFFECTS AND HYPERNUCLEAR FORMATION
1989
9 pages
Published in:
- Nuovo Cim.A 102 (1989) 193-201
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Abstract: (Springer)
Incorporating final-state absorptive effects, we have reexamined the γp→K+Λ elementary process to obtain amplitudes which are used for describing photoproduction of hypernuclei. Our model not only resolves the persisting trouble of the small KNΛ coupling constant, but also yields agreement with cross-section data at higher energies. Using our amplitudes, we calculate angular distributions for the reaction16O(γ, K+)Λ16N. While the forward cross-section increases with increasing energy, the total cross-section is found to remain almost constant fromEγ=1.2 GeV through 2 GeV, which suggests that rather low photon energies hold promise for exploration of hypernuclear excitations.- TALK: PADUA 1988
- PHOTON P: INELASTIC SCATTERING
- INELASTIC SCATTERING: PHOTON P
- LAMBDA: PHOTOPRODUCTION
- PHOTOPRODUCTION: LAMBDA
- PHOTON LIGHT NUCLEUS: NUCLEAR REACTION
- HYPERNUCLEUS: PHOTOPRODUCTION
- PHOTOPRODUCTION: HYPERNUCLEUS
- NITROGEN: HYPERNUCLEUS
- SCATTERING AMPLITUDE
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