Abstract.
In ultrarelativistic heavy-ion collisions at \(\sqrt{s} >\) 20 (120) A\(\cdot\)GeV a copious production of charm (bottom) production sets in which, via correlated semileptonic \(D \bar D\) (\(B \bar B\)) decays, gives rise to a dilepton yield at invariant mass \(M \approx\) 2–3 GeV in excess of the Drell-Yan yield and the thermal dilepton signal from deconfined matter as well. We show that appropriate single-electron transverse momentum cuts (suitable for ALICE at LHC) cause a threshold like behavior of the dilepton spectra from heavy-quark meson decays and the Drell-Yan process and can allow to observe a thermal dilepton signal from hot deconfined matter.
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Received: 28 September 1998 / Revised version: 27 November 1998 / Published online: 22 March 1999
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Gallmeister, K., Kämpfer, B. & Pavlenko, O. Can one discriminate the thermal dilepton signal against the open charm and bottom decay background in ultrarelativistic heavy-ion collisions?. Eur. Phys. J. C 8, 473–478 (1999). https://doi.org/10.1007/s100529901105
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DOI: https://doi.org/10.1007/s100529901105