Search for Nonresonant Pair Production of Highly Energetic Higgs Bosons Decaying to Bottom Quarks
Physical Review Letters
2023
Kārlis Dreimanis,
Antra Gaile,
Andris Potrebko,
Toms Torims,
Viesturs Veckalns,
CMS Collaboration
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
V
V
H
H
couplings,
κ
2
V
, excluding
κ
2
V
=
0
for the first time, with a significance of 6.3 standard deviations when other
H
couplings are fixed to their standard model values.
DOI
10.1103/PhysRevLett.131.041803
Hyperlink
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.041803
The CMS Collaboration, Dreimanis, K., Gaile, A., Potrebko, A., Torims, T., Veckalns, V., ... [et al.]. Collaboration, C. Search for Nonresonant Pair Production of Highly Energetic Higgs Bosons Decaying to Bottom Quarks. Physical Review Letters, 2023, Vol. 131, No. 4, Article number 041803. ISSN 0031-9007. e-ISSN 1079-7114. Available from: doi:10.1103/PhysRevLett.131.041803
Publication language
English (en)