Abstract
This Letter presents a study of the reconstruction and identification of $H\to WW^*$ with high transverse momentum, where both $W^{(*)}$ bosons decay hadronically. We show that the boosted $H\to WW^*$ can be effectively reconstructed as a single jet and identified using jet substructures in the center-of-mass frame of the jet. Such a reconstruction and identification approach can discriminate the boosted $H\to WW^*$ in the full hadronic final state from QCD jets. This result will significantly improve experimental sensitivities of searches for potential new physics phenomena beyond the standard model in final states containing highly boosted Higgs bosons.
Highlights
Many new physics (NP) extensions to the standard model (SM) predict new particles with masses at the TeV scale
The input variables used in the boosted decision tree (BDT) include mTjeAt, the number of charged tracks associated with the jet, the number of subjets reconstructed in the jet rest frame, and jet substructure variables (T, thrust minor (Tmin), S, and R2) calculated using energy clusters and charged tracks, respectively
We study the reconstruction and identification of H → WWà with high transverse momentum, where both WðÃÞ bosons decay hadronically
Summary
Many new physics (NP) extensions to the standard model (SM) predict new particles with masses at the TeV scale. Some of these heavy resonances [1,2,3,4,5] can decay into final states containing Higgs bosons. By using jet substructures in the center-of-mass frame of the jet, the H → WWÃ jets can be distinguished from QCD jets, where the QCD jets are defined as those jets initiated by a nontop quark or a gluon This result can significantly improve experimental sensitivities of searches for potential NP phenomena in final states containing highly boosted Higgs bosons
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