Searching for $Z'$ bosons decaying to gluons

Details Searching for $Z'$ bosons decaying to gluons Searching for $Z'$ bosons decaying to gluons

2012-02-17

arxiv.org/abs/1202.4014v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

For submission to PRD

Scientific paper

The production and decay of a new heavy vector boson, a chromophilic $Z'$ vector boson, is described. The chromophilic $Z'$ couples only to two gluons, but its two-body decays are absent, leading to a dominant decay mode of $Z'\rightarrow q\bar{q}g$. The unusual nature of the interaction predicts a cross-section which grows with $m_{Z'}$ for a fixed coupling and an accompanying gluon with a coupling that rises with its energy. We study the $t\bar{t}g$ decay mode, proposing distinct reconstruction techniques for the observation of an excess and for the measurement of $m_{Z'}$. We estimate the sensitivity of current experimental datasets.

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