Role of the [ital a][sub 1] meson in dilepton production from hot hadronic matter

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.R1827· OSTI ID:7025722

Song, C; Ko, C M ^[1]; Gale, C ^[2]

---

1. Cyclotron Institute and Physics Department, Texas A M University, College Station, Texas 77843 (United States)
2. Physics Department, McGill University, 3600 University Street, Montreal, Quebec, H3A 2T8 (Canada)

Dilepton production from hot hadronic matter is studied in an effective chiral Lagrangian with pions, [rho] mesons, and [ital a][sub 1] mesons. We find that the production rates from reactions that involve axial-vector mesons dominate over contributions from all other reactions when the dilepton invariant mass is above 1.5 GeV.

• OSTI ID: 7025722
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
662340 -- Hadron Interactions-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
A1-1270 MESONS
AXIAL VECTOR MESONS
BOSONS
CHIRAL SYMMETRY
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
INTERACTIONS
LAGRANGIAN FUNCTION
LEPTONS
MATTER
MESONS
PAIR PRODUCTION
PARTICLE PRODUCTION
PIONS
PSEUDOSCALAR MESONS
QUARK MATTER
RHO-770 MESONS
SYMMETRY
VECTOR MESONS