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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

PHYSICAL REVIEW D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

110

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

35

Strana od-do

"032012-1"-"032012-35"

Kód UT WoS článku

001381829500001

EID výsledku v databázi Scopus

2-s2.0-85201308602