Probing for Ultraheavy Quanta at LHC

Details Probing for Ultraheavy Quanta at LHC Probing for Ultraheavy Quanta at LHC

1995-03-28

arxiv.org/abs/hep-ph/9503458v1

Phys.Lett.B352:376-381,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages plain LATEX plus 2 postscript figures in separate uuencoded file or by request. Complete manuscript available as a po

Scientific paper

10.1016/0370-2693(95)00477-3

Experiments at the LHC are sensitive to the presence or absence of matter quanta at mass scales far beyond the scales they can probe directly. The production of $Z$ boson pairs by gluon-gluon fusion is greatly enhanced if there are ultraheavy quanta that carry $SU(3)_{\rm Color}$ and get their mass from electroweak symmetry breaking. For example, a fourth generation quark doublet with an arbitrarily heavy mass would induce a large excess in the $ZZ$ yield that could be detected at the LHC with only $\simeq 10\%$ of the design luminosity.

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