Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production

Details Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production

1996-04-24

arxiv.org/abs/nucl-th/9604035v1

Phys.Rev.C53:2606-2609,1996

Physics

Nuclear Physics

Nuclear Theory

11 pages LaTeX, 3 PostScript figures

Scientific paper

10.1103/PhysRevC.53.R2606

The low-mass dielectron signal from heavy-ion collisions at the CERN--SPS reported by the {\em CERES} collaboration is in excess of estimated hadronic decays suggestive of possible contribution from two-pion annihilation or other hadronic reactions. In the absence of dramatic medium modifications, annihilation alone is unable to account for the data. We explore the role of pion plus resonance scattering [$\pi\rho\to a_{1}(1260) \to \pi e^+e^-$] which has favorable kinematics to populate masses between $2m_{\pi}$ and $m_{\rho}$. While it seems to account for some of the remaining excess beyond annihilation, it fails to allow quantitative interpretation of data.

Affiliated with

Also associated with

No associations

Rating

Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production 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 Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excess electron pairs from heavy-ion collisions at CERN and a more complete picture of thermal production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-551388