Virtual bremsstrahlung from pions and quarks in thermalized hadronic matter

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.4082· OSTI ID:6972772

Haglin, K; Gale, C; Emel'yanov, V ^[1]

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1. Physics Department, McGill University, Montreal, Quebec, H3A 2T8 (Canada)

A soft photon approximation is used to calculate the rates of low-mass ({ital M}{sup {ital e}+}{ital e{minus}}{lt}2{ital m}{sub {pi}}) lepton pair production through virtual bremsstrahlung from both pions and quarks. Standard assumptions about the evolution of a nuclear system under collision allow pion- and quark-driven total production to be calculated. Comparisons are made with Dalitz decay of light mesons. These mechanisms are expected to be significant contributors to the soft dilepton mass spectra one might observe in heavy-ion collisions at energies reached at the BNL Relativistic Heavy Ion Collider and CERN Large Hadron Collider.

• OSTI ID: 6972772
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:9; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662340 -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BOSONS
BREMSSTRAHLUNG
CHARGED-PARTICLE REACTIONS
COUPLING CONSTANTS
DECAY
DIAGRAMS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
LATTICE FIELD THEORY
LEPTONS
MASS SPECTRA
MASSLESS PARTICLES
MATTER
MESON-MESON INTERACTIONS
MESONS
MOMENTUM TRANSFER
NUCLEAR REACTIONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONS
PION-PION INTERACTIONS
POSITRONS
QUANTUM FIELD THEORY
QUARK MATTER
QUARK-QUARK INTERACTIONS
RADIATIONS
SPECTRA