Search for Nonresonant Pair Production of Highly Energetic Higgs Bosons Decaying to Bottom Quarks

Authors

A. Tumasyan, CMS Collaboration

Date of this Version

7-25-2023

Citation

PHYSICAL REVIEW LETTERS 131, 041803 (2023). DOI: 10.1103/PhysRevLett.131.041803

Comments

Used by Permission.

Abstract

A search for nonresonant Higgs boson (H) pair production via gluon and vector boson (V) fusion is performed in the four-bottom-quark final state, using proton-proton collision data at 13 TeV corresponding to 138 fb⁻¹ collected by the CMS experiment at the LHC. The analysis targets Lorentz-boosted H pairs identified using a graph neural network. It constrains the strengths relative to the standard model of the H self-coupling and the quartic VVHH couplings, κ_2V, excluding κ_2V = 0 for the first time, with a significance of 6.3 standard deviations when other H couplings are fixed to their standard model values.