Heavy Meson Production in Proton-Nucleus Reactions with Empirical Spectral Functions

Abstract

We study the production of $K^{+},\rho ,\omega$ and $\varphi$ mesons in $p{+}^{12}C$ reactions on the basis of empirical spectral functions. The high momentum, high removal energy part of the spectral function is found to be negligible in all cases close to the absolute threshold. Furthermore, the two-step process ($pN\to \pi NN;\pi N\to N+K^{+},\rho ,\omega ,\varphi$) dominates the cross section at threshold energies in line with earlier calculations based on the folding model.

18 pages, LaTeX, plus 14 postscript figures, submitted to Z. Phys. A

References in corpus (5)

• Enhancement of low-mass dileptons in heavy-ion collisions
• Realistic Model of the Nucleon Spectral Function in Few- and Many- Nucleon Systems
• Dilepton Production at SPS Energies
• The Role of the $\Delta (1920)$ Resonance for Kaon Production in Heavy Ion Collisions
• Delta excitation in antiproton-deutron annihilation

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• Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy
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