Rest Frame Subjet Algorithm With SISCone Jet For Fully Hadronic Decaying Higgs Search

Abstract

The rest frame subjet algorithm is introduced to define the subjets for the SISCone jet. Using it, an IR and collinear safe jet shape observable N-subjettiness, ${\tau }_N^j$, is defined to discriminate the fat jet from a highly boosted color singlet particle decaying to N partons and the QCD jet. Using rest frame subjets and ${\tau }_2^j$ on dijets from highly boosted $H/W/Z$ bosons through $pp\to HW$, $HZ$, we found that statistical significance of the signal is about $2\sigma$ at the LHC with $\mathcal{L}\sim 30\mathrm{f}{\mathrm{b}}^{-1}$ at $14 \tev$.

5 pages, 3 figures. v2: references added, minor corrections. Accepted by Phys. Rev. D

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