Dilepton production and $m_T$-scaling at BEVALAC/SIS energies

Details Dilepton production and $m_T$-scaling at BEVALAC/SIS energies Dilepton production and $m_T$-scaling at BEVALAC/SIS energies

1997-10-20

arxiv.org/abs/nucl-th/9710043v2

Nucl.Phys. A634 (1998) 168-189

Physics

Nuclear Physics

Nuclear Theory

35 pages, ReVTeX, including 11 postscript figures, UGI-97-06, Nucl. Phys. A, in press

Scientific paper

10.1016/S0375-9474(98)00135-3

We present a dynamical study of $e^+e^-$ production in C + C and Ca + Ca collisions at BEVALAC/SIS energies on the basis of the covariant transport approach HSD employing momentum-dependent $\rho$-meson spectral functions that include the pion modifications in the nuclear medium as well as the polarization of the $\rho$-meson due to resonant $\rho - N$ scattering. We find that the experimental data from the DLS collaboration cannot be described within the $\rho$-meson spectral function approach. A dropping $\eta$-mass scenario leads to a good reproduction of the DLS dilepton data, however, violates the $m_T$-scaling of $\pi^0$ and $\eta$ spectra as observed by the TAPS collaboration as well as $\eta$ photoproduction on nuclei.

Affiliated with

Also associated with

No associations

Rating

Dilepton production and $m_T$-scaling at BEVALAC/SIS energies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dilepton production and $m_T$-scaling at BEVALAC/SIS energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dilepton production and $m_T$-scaling at BEVALAC/SIS energies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-152492