Published 2017 | Version v1
Journal article

Dielectron Production in Pb-Pb Collisions at √(sNN) = 5.02 TeV with ALICE

  • 1. Institut fuer Kernphysik, Goethe-Universitaet Frankfurt (Germany)

Description

Electron-positron pairs (dielectron) are an excellent experimental probe to investigate the properties of the quark-gluon plasma which is formed during ultrarelativistic heavy-ion collisions. Because they do not interact strongly their spectra reflect the entire space-time-evolution of the collision. The created medium can lead to a modification of the dielectron production with respect to the vacuum rate. In the ALICE apparatus at the LHC electrons and positrons are identified by their specific energy loss in the Inner Tracking System (ITS) and in the Time Projection Chamber (TPC) combined with the time-of-flight information from TOF. In this contribution, we give a status report on the recent dielectron measurements in Pb-Pb collisions at √(sNN) = 5.02 TeV in the central barrel of ALICE. For the first time, we show invariant mass and pair transverse momentum spectra for this collision system at this energy.

Additional details

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Muenster 2017 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 52(4)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
81. Annual meeting of DPG and DPG Spring meeting 2017 of the divisions on hadronic and nuclear physics, radiation and medical physics, particle physics and the working groups on equal opportunities, energy, information, young DPG, physics and disarmament
Original Conference Title
81. Jahrestagung der DPG und DPG-Fruehjahrstagung 2017 der Fachverbaende Physik der Hadronen und Kerne, Strahlen- und Medizinphysik, Teilchenphysik und Arbeitskreise Chancengleichheit, Energie, Industrie und Wirtschaft sowie der Arbeitsgruppen Information, junge DPG, Physik und Abruestung
Dates
27-31 Mar 2017
Place
Muenster (Germany)

Optional Information

Notes
Session: HK 40.1 Do 14:00; No further information available
Collaborations
ALICE-Collaboration