High Energy Physics Seminar: Dr. Bingchu Huang, BNL  Add To Calendar

  • Date(s): Monday, 6/23 3:30 PM to Monday, 6/23 4:30 PM
  • Speaker: Dr. Bingchu Huang, BNL
  • Host:
  • Campus Address: 2214 SES Science and Engineering South
Title: “Differential measurements of dielectron productions at STAR"

Abstract
: In the study of hot and dense nuclear matter, created in relativistic heavy-ion collisions, dileptons are considered as ideal penetrating probes as are produced in whole evolution of the system and have very little interaction with quark medium. Therefore, it allows the study of the system throughout its space-time evolution. In the low mass range ($M_{ll}<1.1$~GeV/c$2$) the dominant source of dileptons originates from the decay of vector mesons which may see effects from chiral symmetry restoration. In the intermediate mass range ($1.1<m_{ll}<3.0~gev>acceptance, high purity electron identification. We will present STAR's recent dielectron measurements in the low and intermediate mass range for RHIC beam energies ranging between 19.6 and 200 GeV. Compared to electrons, muon measurements have the advantage of reduced Bremsstrahlung radiation in the surrounding detector materials. With the upcoming detector upgrades, specifically the muon detector (MTD), STAR will be able to include such measurements in its (di-)lepton studies.</m_{ll}<3.0~gev>