Published January 1, 2000 | Version v1
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Dileptons from transport and hydrodynamical models

Creators

Description

Transport and hydrodynamical models used to describe the expansion stage of a heavy-ion collision at the CERN SPS give different dilepton spectrum even if they are tuned to reproduce the observed hadron spectra. To understand the origin of this difference we compare the dilepton emission from transport and hydrodynamical models using similar initial states in both models. We find that the requirement of pion number conservation in a hydrodynamical model does not change the dilepton emission. Also the mass distribution from the transport model indicates faster cooling and longer lifetime of the fireball

Availability note (English)

Available from INIS in electronic form; Also available from OSTI as DE00822604; PURL: https://www.osti.gov/servlets/purl/822604-uOvUut/native/

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Additional details

Identifiers

URL
https://www.osti.gov/servlets/purl/822604-uOvUut/native/;

Publishing Information

Imprint Pagination
5 p.
Report number
LBNL--45192

Conference

Title
28. International Workshop on Gross Properties of Nuclei and Nuclear Excitations
Dates
16-22 Jan 2000
Place
Hirschegg (Austria)

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
35048696
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CERN SPS SYNCHROTRON; CHARGED-PARTICLE TRANSPORT; FIREBALL MODEL; HEAVY ION REACTIONS; HYDRODYNAMIC MODEL; LEPTONS; MASS DISTRIBUTION; PAIR PRODUCTION; PIONS
Descriptors DEC
ACCELERATORS; BOSONS; CYCLIC ACCELERATORS; DISTRIBUTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MESONS; NUCLEAR REACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PSEUDOSCALAR MESONS; RADIATION TRANSPORT; SPATIAL DISTRIBUTION; STATISTICAL MODELS; SYNCHROTRONS; THERMODYNAMIC MODEL

Optional Information

Contract/Grant/Project number
AC--03-76SF00098
Funding organization
USDOE Director. Office of Science. Nuclear Physics (United States)