Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K⁎γ with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10477062" target="_blank" >RIV/00216208:11320/23:10477062 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/23:00373809 RIV/68407700:21340/23:00373809 RIV/68407700:21670/23:00373809 RIV/61989592:15310/23:73623110

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1N6u.JWILS" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1N6u.JWILS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.138292" target="_blank" >10.1016/j.physletb.2023.138292</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K⁎γ with the ATLAS detector

Popis výsledku v původním jazyce

Searches for the exclusive decays of the Higgs boson to an ω meson and a photon or a K⁎ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along with the analogous Z boson decay to an ω meson and a photon, are performed with a pp collision data sample corresponding to integrated luminosities of up to 134 fb-1 collected at s=13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The obtained 95% confidence-level upper limits on the respective branching fractions are B(HRIGHTWARDS ARROWωγ)&lt;5.5x10-4, B(HRIGHTWARDS ARROWK⁎γ)&lt;2.2x10-4 and B(ZRIGHTWARDS ARROWωγ)&lt;3.9x10-6. The limits for HRIGHTWARDS ARROWωγ and ZRIGHTWARDS ARROWωγ are 370 times and 140 times the Standard Model expected values, respectively. The result for ZRIGHTWARDS ARROWωγ corresponds to a two-orders-of-magnitude improvement over the limit obtained by the DELPHI experiment at LEP.

Název v anglickém jazyce

Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K⁎γ with the ATLAS detector

Popis výsledku anglicky

Searches for the exclusive decays of the Higgs boson to an ω meson and a photon or a K⁎ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along with the analogous Z boson decay to an ω meson and a photon, are performed with a pp collision data sample corresponding to integrated luminosities of up to 134 fb-1 collected at s=13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The obtained 95% confidence-level upper limits on the respective branching fractions are B(HRIGHTWARDS ARROWωγ)&lt;5.5x10-4, B(HRIGHTWARDS ARROWK⁎γ)&lt;2.2x10-4 and B(ZRIGHTWARDS ARROWωγ)&lt;3.9x10-6. The limits for HRIGHTWARDS ARROWωγ and ZRIGHTWARDS ARROWωγ are 370 times and 140 times the Standard Model expected values, respectively. The result for ZRIGHTWARDS ARROWωγ corresponds to a two-orders-of-magnitude improvement over the limit obtained by the DELPHI experiment at LEP.

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

2023

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

847

Číslo periodika v rámci svazku

Dec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

23

Strana od-do

138292

Kód UT WoS článku

001127953600001

EID výsledku v databázi Scopus

2-s2.0-85180605865