2004/09/17 by Laura Holt, Kevin Haglin · 19 citations
Physics and Astronomy · #Coupling (piping) #Field (mathematics) #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Lagrangian #Meson #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Theoretical physics #nucl-th
paper · pdf · doi:10.1088/0954-3899/31/4/030
published in Journal of Physics G Nuclear and Particle Physics 31(4), S245-S251 (IOP Publishing) · 7 pages Latex, 4 figures, Talk presented at Hot Quarks 2004, July 18-24, 2004, Taos Valley, NM, USA
arxiv created 2004/09/17 · openalex publication_date 2005/03/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We use effective hadronic field theory to study in-medium properties of the ϕ meson. The dominant decay channels and ϕ → πρ are modelled using an SU (3) chiral Lagrangian with normal and abnormal parities. The ϕ self-energy is approximated to one-, two- and even three-loop order in the strong coupling. Effects of modified spectral functions for π, K , ρ and ϕ are also included in the calculation. This allows us to study in-medium decay of phi mesons into (in-medium) kaon-pair daughters and (in-medium) πρ pairs. The results point to the possibility of rather short-lived ϕ, short enough to decay inside the fireball in relativistic heavy ion collisions. Implications relevant for the NA49 and NA50 experimental results, recently dubbed the 'ϕ puzzle', are discussed.