2 4 A pr 2 00 8 Dielectron Production in 12 C + 12 C Collisions at 1 GeV / u and the Solution to the DLS Puzzle
نویسندگان
چکیده
The production of ee pairs in C + C collisions at 1 GeV/u was investigated with the HADES experiment at GSI, Darmstadt. In the invariant-mass region 0.15GeV/c ≤ Mee ≤ 0.5GeV/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.
منابع مشابه
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