Constraining off-shell Higgs boson production and the Higgs boson total width using WWRIGHTWARDS ARROW (l, l) final states with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10512355" target="_blank" >RIV/00216208:11320/25:10512355 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=0LUvXkh7-n" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=0LUvXkh7-n</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2025.139898" target="_blank" >10.1016/j.physletb.2025.139898</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Constraining off-shell Higgs boson production and the Higgs boson total width using WWRIGHTWARDS ARROW (l, l) final states with the ATLAS detector

Popis výsledku v původním jazyce

A measurement of off-shell Higgs boson production is performed in the H-* -&gt; W Wchannel. The measurement uses a proton-proton collision dataset with an integrated luminosity of 140 fb(-1) collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Final states in which both.. bosons decay leptonically are targeted, and events are categorised based on the flavour of the final-state leptons, the jet multiplicity, and the output of neural network-based classifiers. The data are found to be compatible with the Standard Model expectation. An observed (expected) upper bound on the 95% symmetric confidence level interval is set on the rate of off-shell Higgs boson production at a value of 3.4 (4.4) times the Standard Model prediction. These results are combined with the results from the measurement of on-shell Higgs boson production in the same final states to obtain an observed (expected) upper bound at 95% confidence level on the Higgs boson total width of 13.1 (17.3) MeV.

Název v anglickém jazyce

Constraining off-shell Higgs boson production and the Higgs boson total width using WWRIGHTWARDS ARROW (l, l) final states with the ATLAS detector

Popis výsledku anglicky

A measurement of off-shell Higgs boson production is performed in the H-* -&gt; W Wchannel. The measurement uses a proton-proton collision dataset with an integrated luminosity of 140 fb(-1) collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Final states in which both.. bosons decay leptonically are targeted, and events are categorised based on the flavour of the final-state leptons, the jet multiplicity, and the output of neural network-based classifiers. The data are found to be compatible with the Standard Model expectation. An observed (expected) upper bound on the 95% symmetric confidence level interval is set on the rate of off-shell Higgs boson production at a value of 3.4 (4.4) times the Standard Model prediction. These results are combined with the results from the measurement of on-shell Higgs boson production in the same final states to obtain an observed (expected) upper bound at 95% confidence level on the Higgs boson total width of 13.1 (17.3) MeV.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

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)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

870

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

21

Strana od-do

139898

Kód UT WoS článku

001641499100001

EID výsledku v databázi Scopus

2-s2.0-105026402976