Importance of momentum dependent interactions for the extraction of the nuclear equation of state from high-energy heavy ion collisions

  • We demonstrate that momentum-dependent nuclear interactions (MDI) have a large effect on the dynamics and on the observables of high-energy heavy-ion collisions: A soft potential with MDI suppresses pion and kaon yields much more strongly than a local hard potential and results in transverse momenta intermediate between soft and hard local potentials. The collective-flow angles and the deuteron-to-proton ratios are rather insensitive to the MDI. Only simultaneous measurements of these observables can give clues on the nuclear equation of state at densities of interest for supernova collapse and neutron-star stability.

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Author:Jörg AichelinORCiDGND, Albrecht Rosenhauer, Georg Peilert, Horst StöckerORCiDGND, Walter GreinerGND
Parent Title (German):Physical review letters
Document Type:Article
Date of Publication (online):2006/06/09
Year of first Publication:1987
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/06/09
Page Number:4
First Page:1926
Last Page:1929
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht