Dielectron Production in C+C Collisions at 1 GeV/u and the Solution to the DLS Puzzle

Y. C. Pachmayer

doi:10.1088/0954-3899/35/10/104159

Dielectron Production in C+C Collisions at 1 GeV/u and the Solution to the DLS Puzzle

Nuclear Experiment 2019-08-13 v1

Authors: Y. C. Pachmayer

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Abstract

The production of e+e- pairs in C+C collisions at 1 GeV/u was investigated with the HADES experiment at GSI, Darmstadt. In the invariant-mass region $0.15\: GeV/c^{2} \leq M_{ee} \leq 0.5\: GeV/c^{2}$ the measured pair yield shows a strong excess above the contribution expected from hadron decays after freeze-out. The data are in good agreement with the results of the former DLS experiment for the same system and energy.

Keywords

dielectron production C+C collisions HADES experiment invariant mass DLS puzzle hadron decays

Cite

@article{arxiv.0804.3993,
  title  = {Dielectron Production in C+C Collisions at 1 GeV/u and the Solution to the DLS Puzzle},
  author = {Y. C. Pachmayer},
  journal= {arXiv preprint arXiv:0804.3993},
  year   = {2019}
}

Comments

6 pages, 3 figures, conference proceedings: Quark Matter 2008, Jaipur (India), 4-10 February 2008, submitted to J. Phys. G: Nuclear and Particle Physics

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