Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-01-22
Phys.Part.Nucl.Lett.8:337-341,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
New paragraph added, 12 pages, 4 Figs, This version is accepted for publication in "Particles and Nuclei, Letters"
Scientific paper
10.1134/S1547477111040121
We study dark matter production at CERN LHC from black hole remnants (BHR). We find that the typical mass of these BHR at LHC is ~ 5-10 TeV which is heavier than other dark matter candidates such as: axion, axino, neutralino etc. We propose the detection of this dark matter via single jet production in the process pp -> jet +BHR(dark matter) at CERN LHC. We find that for zero impact parameter partonic collisions, the monojet cross section is not negligible in comparison to the standard model background and is much higher than the other dark matter scenarios studied so far. We also find that d\sigma/dp_T of jet production in this process increases as p_T increases, whereas in all other dark matter scenarios the d\sigma/dp_T decreases at CERN LHC. This may provide an useful signature for dark matter detection at LHC. However, we find that when the impact parameter dependent effect of inelasticity is included, the monojet cross section from the above process becomes much smaller than the standard model background and may not be detectable at LHC.
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