Bremsstrahlung production of low mass dielectrons in relativistic heavy ion collisions

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.1366· OSTI ID:383348

Pal, D ^[1]; Haglin, K ^[2]; Srivastava, D K ^[1]

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1. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta 700 064 (India)
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)

The distribution of low mass dielectrons likely to be produced in relativistic heavy ion collisions due to bremsstrahlung processes in quark matter and hadronic matter is obtained. Effort is made to minimize uncertainty and restore Lorentz covariance as compared with past calculations performed in a similar vein. It is found that the excess of dielectrons in S+Au collisions at 200{ital A}GeV measured by the CERES Collaboration at the CERN Super Proton Synchrotron may have an important contribution from these processes at very low masses. {copyright}{ital 1996 The American Physical Society.}

• OSTI ID: 383348
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BREMSSTRAHLUNG
DISTRIBUTION
ELECTRONS
GEV RANGE 100-1000
GOLD 197 TARGET
HEAVY ION REACTIONS
LORENTZ INVARIANCE
MASS
PAIR PRODUCTION
QUARK MATTER
RELATIVISTIC RANGE
SULFUR 32 REACTIONS
SYNCHROTRONS