# Quark Matter 2012

12-18 August 2012
US/Eastern timezone

## Di-electron differential cross section in Au+Au collisions at different beam energies at STAR

15 Aug 2012, 09:10
20m
Diplomat ()

### Diplomat

Oral Presentation Electroweak probes

### Speaker

Dr Huang Bingchu (Brookhaven National Lab)

### Description

Di-leptons serve as clean and bulk penetrating probes to study the properties of the strongly interacting hot and dense medium created in heavy ion collisions. They are produced in all stages of the heavy-ion collisions and are not affected by strong interactions, hence can probe the entire evolution of the collision. Di-lepton production in the low mass range ($M_{ll}<1.1$ GeV/$c^{2}$) allows the study of vector meson in-medium properties, an observable possibly connected to chiral symmetry restoration. In the intermediate mass region (\$1.1

### Primary author

Dr Huang Bingchu (Brookhaven National Lab)

 Slides