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Phys. Rev. C 54, 1366–1374 (1996)

Bremsstrahlung production of low mass dielectrons in relativistic heavy ion collisions

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Dipali Pal
Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta 700 064, India

Kevin Haglin
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321

Dinesh Kumar Srivastava
Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta 700 064, India

Received 4 December 1995; published in the issue dated September 1996

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 200A GeV measured by the CERES Collaboration at the CERN Super Proton Synchrotron may have an important contribution from these processes at very low masses. ©1996 The American Physical Society.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.54.1366
DOI:
10.1103/PhysRevC.54.1366
PACS:
25.75.Dw, 12.38.Mh, 13.30.Ce, 13.40.Ks