From pion nucleon scattering to vector mesons in nuclear matter

M. Lutz, G. Wolf, B. Friman

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We construct a relativistic and unitary approach to `high' energy pion nucleon scattering taking into account the inelastic πδ, ρN, ωN, KΣ, KΛ and ηN channels [1]. Our scheme dynamically generates the s- and d-wave nucleon and isobar resonances N*(1535), N*(1650), N*(1520), N*(1700), δ*(1620) and δz.ast;(1700). We also describe the ρ- and ω-nucleon scattering amplitudes which in turn provide the leading density modification of the ρ and ω mass distribution in nuclear matter. We find repulsive mass shifts for both vector mesons at smallnnuclear density but predict considerable strength in low energy resonance-hole like vector meson modes.

Original languageEnglish
JournalNuclear Physics A
Volume661
Issue number1-4
Publication statusPublished - Dec 27 1999

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vector mesons
pions
isobars
scattering
mass distribution
scattering amplitude
sands
energy
shift

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

From pion nucleon scattering to vector mesons in nuclear matter. / Lutz, M.; Wolf, G.; Friman, B.

In: Nuclear Physics A, Vol. 661, No. 1-4, 27.12.1999.

Research output: Contribution to journalArticle

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