| Issue |
EPJ Web Conf.
Volume 171, 2018
17th International Conference on Strangeness in Quark Matter (SQM 2017)
|
|
|---|---|---|
| Article Number | 18011 | |
| Number of page(s) | 4 | |
| Section | Open and Hidden Heavy-Flavour (parallel session) | |
| DOI | https://doi.org/10.1051/epjconf/201817118011 | |
| Published online | 02 February 2018 | |
https://doi.org/10.1051/epjconf/201817118011
Low-mass dielectrons in pp, p–Pb and Pb–Pb collisions measured by the ALICE Experiment
1
Physik Department, Technische Universität München, Munich, Germany
2
Excellence Cluster Universe, Technische Universität München, Munich, Germany
* e-mail: ivan.vorobyev@cern.ch
Published online: 2 February 2018
Dielectrons produced in ultra-relativistic heavy-ion collisions at the LHC provide a unique probe of the system evolution as they are unperturbed by final-state interactions. The dielectron continuum is extremely rich in physics sources: on top of ordinary Dalitz and resonance decays of pseudoscalar and vector mesons, thermal black-body radiation is of particular interest as it carries information about the temperature of the hot and dense system created in such collisions. The dielectron invariant-mass distribution is furthermore sensitive to medium modifications of the spectral function of short-lived vector mesons that are linked to the potential restoration of chiral symmetry at high temperatures. Correlated electron pairs from semi-leptonic charm and beauty decays provide complementary information about the heavy-quark energy loss.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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