Phenomenological consequences of a hypothetical light neutral particle in heavy ion collisions

  • We discuss the possibility that the line structure observed in the spectrum of the positrons produced in heavy ion collisions is due to the decay of a new neutral elementary particle. We argue that this can be ruled out unless one is willing to accept fine tuning of parameters, or to assume the dominance of nonlinear effects.

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Author:Joachim ReinhardtGND, Andreas SchäferORCiDGND, Berndt MüllerORCiDGND, Walter GreinerGND
Parent Title (German):Physical review C
Document Type:Article
Date of Publication (online):2006/07/03
Year of first Publication:1986
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/03
Page Number:14
First Page:194
Last Page:204
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:20.00.00 NUCLEAR PHYSICS / 25.00.00 Nuclear reactions: specific reactions / 25.70.-z Low and intermediate energy heavy-ion reactions
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 34.00.00 Atomic and molecular collision processes and interactions (for atomic, molecular, and ionic collisions in plasma, see 52.20.Hv; for atoms and molecules of astrophysical interest, see 95.30.Dr, Ft; see also 98.38.Bn and 98.58.Bz in interstellar media in as / 34.50.-s Scattering of atoms and molecules / 34.50.Fa Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)
Licence (German):License LogoDeutsches Urheberrecht