Search for the nonresonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the b(b)over-barτ+τ- final state in proton-proton collisions at √s=13 TeV with the ATLAS detector

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73628810" target="_blank" >RIV/61989592:15310/24:73628810 - isvavai.cz</a>

Result on the web

<a href="https://journals.aps.org/prd/pdf/10.1103/PhysRevD.110.032012" target="_blank" >https://journals.aps.org/prd/pdf/10.1103/PhysRevD.110.032012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.110.032012" target="_blank" >10.1103/PhysRevD.110.032012</a>

Result language

angličtina

Original language name

Search for the nonresonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the b(b)over-barτ+τ- final state in proton-proton collisions at √s=13 TeV with the ATLAS detector

Original language description

A search for the nonresonant production of Higgs boson pairs in the HH -&gt; b (b) over bar tau(+)tau(-) channel is performed using 140 fb(-1) of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. The analysis strategy is optimized to probe anomalous values of the Higgs boson self-coupling modifier kappa(lambda) and of the quartic HHVV (V = W, Z) coupling modifier kappa(2V). No significant excess above the expected background from Standard Model processes is observed. An observed (expected) upper limit mu(HH) &lt; 5.9(3.3) is set at 95% confidence-level on the Higgs boson pair production cross section normalized to its Standard Model prediction. The coupling modifiers are constrained to an observed (expected) 95% confidence interval of -3.1 &lt; kappa(lambda) &lt; 9.0 (-2.5 &lt; kappa(lambda) &lt; 9.3) and -0.5 &lt; kappa(2V) &lt; 2.7 (-0.2 &lt; kappa(2V) &lt; 2.4), assuming all other Higgs boson couplings are fixed to the Standard Model prediction. The results are also interpreted in the context of effective field theories via constraints on anomalous Higgs boson couplings and Higgs boson pair production cross sections assuming different kinematic benchmark scenarios.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PHYSICAL REVIEW D

ISSN

2470-0010

e-ISSN

2470-0029

Volume of the periodical

110

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

35

Pages from-to

"032012-1"-"032012-35"

UT code for WoS article

001381829500001

EID of the result in the Scopus database

2-s2.0-85201308602