Abstract
We show that the Template Overlap Method can improve the signal to background
ratio of boosted Hb b events produced in association with a
leptonically decaying W. We introduce several improvements on the previous
formulations of the template method. Varying three-particle template subcones
increases the rejection power against the backgrounds, while sequential
template generation ensures an efficient coverage in template phase space. We
integrate b-tagging information into the template overlap framework and
introduce a new template based observable, the template stretch. Our analysis
takes into account the contamination from the charm daughters of top decays in
$tt$ events, and includes nearly-realistic effects of pileup and
underlying events. We show that the Template Overlap Method displays very low
sensitivity to pileup, hence providing a self-contained alternative to other
methods of pile up subtraction. The developments described in this work are
quite general, and may apply to other searches for massive boosted objects.
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