Low-mass $e^+ e^-$ mass distributions from 1.23 A GeV Au+Au collisions with HADES - INSPIRE

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Low-mass $e^+ e^-$ mass distributions from 1.23 A GeV Au+Au collisions with HADES

HADES

Collaboration

•

Tetyana Galatyuk
(
- Darmstadt, Tech. U. and
- Darmstadt, GSI
)

for the collaboration.

Nov, 2017

4 pages

Part of Proceedings, 26th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions (Quark Matter 2017) : Chicago, Illinois, USA, February 5-11, 2017, 680-683

Published in:

Nucl.Phys.A 967 (2017) 680-683

Contribution to:

- Quark Matter 2017
, 680-683

Published: Nov, 2017

DOI:

10.1016/j.nuclphysa.2017.05.029

Experiments:

GSI-HADES

View in:

Nuclear Science References

reference search5 citations

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Abstract: (Elsevier)

We present measurements of low-mass electron pairs for the Au+Au system based on a data sample of 2.6 billion events of the 40% most central collisions. In order to understand the microscopic structure of matter in the region of high baryochemical potential HADES pursues a strategy, which relies on systematic measurements of virtual photons emission in elementary and heavy-ion collisions. As of now, HADES has completed measurements of rare penetrating probes in p+p, n+p, C+C, p+Nb and Ar+KCl collisions. In continuation of a systematic investigation of the emissivity of strongly interacting matter, HADES has recently measured the dielectron emission in Au+Au collisions at 1.23 A GeV beam energy. This measurement is part of the beam energy scan and marks lowest point in the excitation function of low-mass thermal dilepton radiation.

HADES
dielectrons
electron: pair production
beam: energy
matter: interaction
dilepton: thermal
photon: emission
photon: virtual
HADES
Darmstadt SIS

References(19)

Figures(0)

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