Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-07-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages of TEX + 5 Figures (available only as hardcopy); Talk pres. at the XXXth Rencontres de Moriond on QCD and High Energy
Scientific paper
We reexamine the prospects for searching for a neutral Higgs boson in the intermediate-mass range and physics beyond the standard model, using the proton- and ion-beam facilities of the LHC to study coherent two-photon processes. Considering realistic design luminosities for the different ion beams, we find that beams of light-to-medium size ions like calcium will give the highest production rates. With a suitable trigger and assuming a b-quark identification efficiency of $30\%$ and a $b{\bar b}$ mass resolution of 10 GeV one could expect to see a Higgs signal in the $b{\bar b}$ channel with a 3-4 $\sigma$ statistical significance in the first phase of operation of the LHC with beams of calcium. The discovery potential for light supersymmetric particles is as promissing. The study of such very ``quiet'' final state topologies in heavy ion collisions could even lead to the discovery of a new phase of QED.
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