Highly Boosted Higgs Bosons and Unitarity in Vector-Boson Fusion at Future Hadron Colliders

26 Aug 2021, 13:50
20m
ZR2

ZR2

Searches for the BSM Physics at the LHC and Future Hadronic Colliders Searches for the BSM Physics at the LHC and Future Hadronic Colliders

Speaker

Zhijie Zhao (Institute of High Energy Physics, Chinese Academy of Sciences)

Description

We study the observability of new interactions which modify Higgs-pair production via vector-boson fusion processes at the LHC and at future proton-proton colliders. In an effective-Lagrangian approach, we explore in particular the effect of the operator $h^2 W_{\mu\nu}^a W^{a,\mu\nu}$, which describes the interaction of the Higgs boson with transverse vector-boson polarization modes. By tagging highly boosted Higgs bosons in the final state, we determine projected bounds for the coefficient of this operator at the LHC and at a future 27 TeV or 100 TeV collider. Taking into account unitarity constraints, we estimate the new-physics discovery potential of Higgs pair production in this channel.

Primary author

Zhijie Zhao (Institute of High Energy Physics, Chinese Academy of Sciences)

Co-authors

Qi-Shu Yan (University of Chinese Academy of Sciences) Sichun Sun Xiaoran Zhao (Rome Tre University) Wolfgang Kilian (University of Siegen)

Presentation materials