Pion collectivity in relativistic heavy-ion collisions |
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| Affiliation: | 1. Cyclotron Laboratory, Michigan State University, East Laming, MI 48824, USA;2. Physics Department, State University of New York at Stony Brook, Stony Brook, NY 11794, USA;1. Joint Institute for Nuclear Research, 141980 Dubna, Russia;2. Institut für Theoretische Physik der Justus–Liebig–Universität, D–35392 Giessen, Germany;3. Tomsk Polytechnic University, 634050 Tomsk, Russia;1. ICAR-National Research Center on Equines, Hisar, Haryana, India;2. Division of Veterinary Medicine, Indian Veterinary Research Institute, Izzatnagar, Bareilly, Uttra Pradesh, India |
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| Abstract: | The inelastic nucleon-nucleon cross section may be enhanced in the nuclear medium by pion collectivity. Empirical hamiltonians are on the borderline of strongly collective behavior, and the predicted enhancement factors range from 1–5 for various hamiltonians from the literature. An enhancement would have a substantial effect on the sideward flow in relativistic heavy-ion collisions. If this effect is present, the equation of state could be softer than in previous analyses. |
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