Spin and Isospin Effects in the NN -> NK Lambda Reaction Near Threshold

Abstract

The spin and isospin structure of the amplitudes and observables for K+Lambda production in nucleon-nucleon collisions in the near-threshold region is analysed. It is shown that, with reasonable values for the relative strengths of the pi and rho terms in a meson-exchange model, one expects production on the neutron to be significantly stronger than that on the proton. Negative values of the spin-transfer coefficient D_NN are also predicted due to pi-rho interference.

5 pages, 3 figures, using the EPJA style files

References in corpus (16)

• Soft-core hyperon-nucleon potentials
• Measurement of gamma p --> K+ Lambda and gamma p --> K+ Sigma0 at photon energies up to 2.6 GeV
• Meson production in nucleon--nucleon collisions close to the threshold
• Resonance model study of kaon production in baryon baryon reactions for heavy ion collisions
• Close-to-threshold Meson Production in Hadronic Interactions
• Eta Meson Production in NN Collisions
• The production of eta-mesons in nucleon-nucleon collisions near threshold
• $pp\to p{K}^{+}\Lambda$ reaction in an effective Lagrangian model
• Energy dependence of the Lambda/Sigma0 production cross section ratio in proton proton interactions
• Comparison of the Near-Threshold Production of eta- and K-Mesons in Proton-Proton Collisions
• Analysis of resonance multipoles from polarization observables in eta photoproduction
• The reactions $pp\to p\Lambda K^{+}$ and $pp\to p{\Sigma }^0{K}^{+}$ near their thresholds
• Spin Transfer in Exclusive Lambda Production from pp Collisions at 3.67 GeV/c
• Production of eta mesons in nucleon-nucleon collisions
• Analysis of the Lambda p Final State Interaction in the Reaction p+p->K^+(Lambda p)
• Dynamics of strangeness production in the near threshold nucleon-nucleon collisions

Cited by in corpus (3)

• A relativistic two-nucleon model for $A(p,K^{+}){}_{\Lambda }B$ reaction
• Medium effects in $\Lambda K^{+}$ pair production by 2.83 GeV protons on nuclei
• Comparison of inclusive K+ production in proton-proton and proton-neutron collisions