Search for nonresonant Higgs boson pair production in final state with two bottom quarks and two tau leptons in proton-proton collisions at √s=13 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
A search for the nonresonant production of Higgs boson pairs (HH) via gluon-gluon and vector boson
fusion processes in final states with two bottom quarks and two tau leptons is presented. The search
uses data from proton-proton collisions at a center-of-mass energy of √s = 13 TeV recorded with the
CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb−1 . Events in which at least
one tau lepton decays hadronically are considered and multiple machine learning techniques are used
to identify and extract the signal. The data are found to be consistent, within uncertainties, with the
standard model (SM) predictions. Upper limits on the HH production cross section are set to constrain
the parameter space for anomalous Higgs boson couplings. The observed (expected) upper limit at 95%
confidence level corresponds to 3.3 (5.2) times the SM prediction for the inclusive HH cross section and
to 124 (154) times the SM prediction for the vector boson fusion HH cross section. At 95% confidence
level, the Higgs field self-coupling is constrained to be within −1.7 and 8.7 times the SM expectation,
and the coupling of two Higgs bosons to two vector bosons is constrained to be within −0.4 and 2.6
times the SM expectation.
fusion processes in final states with two bottom quarks and two tau leptons is presented. The search
uses data from proton-proton collisions at a center-of-mass energy of √s = 13 TeV recorded with the
CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb−1 . Events in which at least
one tau lepton decays hadronically are considered and multiple machine learning techniques are used
to identify and extract the signal. The data are found to be consistent, within uncertainties, with the
standard model (SM) predictions. Upper limits on the HH production cross section are set to constrain
the parameter space for anomalous Higgs boson couplings. The observed (expected) upper limit at 95%
confidence level corresponds to 3.3 (5.2) times the SM prediction for the inclusive HH cross section and
to 124 (154) times the SM prediction for the vector boson fusion HH cross section. At 95% confidence
level, the Higgs field self-coupling is constrained to be within −1.7 and 8.7 times the SM expectation,
and the coupling of two Higgs bosons to two vector bosons is constrained to be within −0.4 and 2.6
times the SM expectation.
Date Issued
2023-07-10
Date Acceptance
2022-10-18
Citation
Physics Letters B: Nuclear Physics and Particle Physics, 2023, 842
ISSN
0370-2693
Publisher
Elsevier
Journal / Book Title
Physics Letters B: Nuclear Physics and Particle Physics
Volume
842
Copyright Statement
© 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP 3 .
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP 3 .
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001023915300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Astronomy & Astrophysics
Bbtautau
CMS
HH
Higgs
Physical Sciences
Physics
Physics, Nuclear
Physics, Particles & Fields
Science & Technology
Self-coupling
VBF
Publication Status
Published
Article Number
ARTN 137531