Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf
1 PublikationProbing Meson Spectral Functions with Double Differential Dilepton Spectra in Heavy-Ion Collisions
Kämpfer, B.; Pavlenko, O. P.
Abstract
The double differential dilepton spectrum dN/ (dM2 dM
^
2)
at fixed transverse mass M
^
allows a direct access to the vector meson spectral
functions. Within a fireball model the sensitivity of dN/ (dM2dM
^
2) against variations of both the in-medium properties of mesons and the dynamics of the fireball is investigated. In contrast to the integrated invariant-mass spectrum dN/dM2, in the spectrum dN/dM2dM
^
2 with fixed M
^
the ω signal is clearly seen as bump riding on the ρ background even in case of strong in-medium modifications.
- Eur. Phys. J. A 10 (2001) 101-107
Permalink: https://www.hzdr.de/publications/Publ-4653