Search for pair production of boosted Higgs bosons via vector-boson fusion in the ????̄????????̄???? final state using ???????? collisions at SQUARE ROOT???? = 13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493833" target="_blank" >RIV/00216208:11320/24:10493833 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lmpeSeUc0-" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=lmpeSeUc0-</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2024.139007" target="_blank" >10.1016/j.physletb.2024.139007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for pair production of boosted Higgs bosons via vector-boson fusion in the ????̄????????̄???? final state using ???????? collisions at SQUARE ROOT???? = 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A search for Higgs boson pair production via vector-boson fusion is performed in the Lorentz-boosted regime, where a Higgs boson candidate is reconstructed as a single large-radius jet, using 140 fb-1 of proton-proton collision data at SQUARE ROOT???? = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Only Higgs boson decays into bottom quark pairs are considered. The search is particularly sensitive to the quartic coupling between two vector bosons and two Higgs bosons relative to its Standard Model prediction, ????2???? . This study constrains ????2???? to 0.55 &lt; ????2???? &lt; 1.49 at the 95% confidence level. The value ????2???? = 0 is excluded with a significance of 3.8 standard deviations with other Higgs boson couplings fixed to their Standard Model values. A search for new heavy spin-0 resonances that would mediate Higgs boson pair production via vector-boson fusion is carried out in the mass range of 1-5 TeV for the first time under several model and decay-width assumptions. No significant deviation from the Standard Model hypothesis is observed and exclusion limits at the 95% confidence level are derived.

Název v anglickém jazyce

Search for pair production of boosted Higgs bosons via vector-boson fusion in the ????̄????????̄???? final state using ???????? collisions at SQUARE ROOT???? = 13 TeV with the ATLAS detector

Popis výsledku anglicky

A search for Higgs boson pair production via vector-boson fusion is performed in the Lorentz-boosted regime, where a Higgs boson candidate is reconstructed as a single large-radius jet, using 140 fb-1 of proton-proton collision data at SQUARE ROOT???? = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Only Higgs boson decays into bottom quark pairs are considered. The search is particularly sensitive to the quartic coupling between two vector bosons and two Higgs bosons relative to its Standard Model prediction, ????2???? . This study constrains ????2???? to 0.55 &lt; ????2???? &lt; 1.49 at the 95% confidence level. The value ????2???? = 0 is excluded with a significance of 3.8 standard deviations with other Higgs boson couplings fixed to their Standard Model values. A search for new heavy spin-0 resonances that would mediate Higgs boson pair production via vector-boson fusion is carried out in the mass range of 1-5 TeV for the first time under several model and decay-width assumptions. No significant deviation from the Standard Model hypothesis is observed and exclusion limits at the 95% confidence level are derived.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

858

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

26

Strana od-do

139007

Kód UT WoS článku

001381324700001

EID výsledku v databázi Scopus

2-s2.0-85204496821