Search for Higgs Boson Pair Production in the Four b Quark Final State in Proton-Proton Collisions at SQUARE ROOTs=13 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10471268" target="_blank" >RIV/00216208:11320/22:10471268 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8AQXFToihn" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8AQXFToihn</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.129.081802" target="_blank" >10.1103/PhysRevLett.129.081802</a>

Result language
angličtina
Original language name
Search for Higgs Boson Pair Production in the Four b Quark Final State in Proton-Proton Collisions at SQUARE ROOTs=13 TeV
Original language description
A search for pairs of Higgs bosons produced via gluon and vector boson fusion is presented, focusing on the four b quark final state. The data sample consists of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC, and corresponds to an integrated luminosity of 138 fb(-1). No deviation from the background-only hypothesis is observed. A 95% confidence level upper limit on the Higgs boson pair production cross section is observed at 3.9 times the standard model prediction for an expected value of 7.8. Constraints are also set on the modifiers of the Higgs field selfcoupling,.., and of the coupling of two Higgs bosons to two vector bosons,.2V. The observed (expected) allowed intervals at the 95% confidence level are -2.3 < kappa(lambda) < 9.4 (-5.0 < kappa(lambda) < 12.0) and -0.1 < kappa(2V) < 2.2 (-0.4 < kappa(2V) < 2.5). These are the most stringent observed constraints to date on the HH production cross section and on the kappa(2V) coupling.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences

Project
<a href="/en/project/LG14004" target="_blank" >LG14004: Cooperation of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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