Search for pair-produced higgsinos decaying via Higgs or ???? bosons to final states containing a pair of photons and a pair of ????-jets with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493831" target="_blank" >RIV/00216208:11320/24:10493831 - isvavai.cz</a>

Výsledek na webu

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

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2024.138938" target="_blank" >10.1016/j.physletb.2024.138938</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for pair-produced higgsinos decaying via Higgs or ???? bosons to final states containing a pair of photons and a pair of ????-jets with the ATLAS detector

Popis výsledku v původním jazyce

A search is presented for the pair production of higgsinos ???? in gauge-mediated supersymmetry models, where the lightest neutralinos ????0 1 decay into a light gravitino ???? in association with either a Higgs ℎ or a ???? boson. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb-1 of proton-proton collisions at a centre-of-mass energy of SQUARE ROOT???? = 13 TeV. It targets final states in which a Higgs boson decays into a photon pair, while the other Higgs or ???? boson decays into a ????̄???? pair, with missing transverse momentum associated with the two gravitinos. Search regions dependent on the amount of missing transverse momentum are defined by the requirements that the diphoton mass should be consistent with the mass of the Higgs boson, and the ????̄???? mass with the mass of the Higgs or ???? boson. The main backgrounds are estimated with data-driven methods using the sidebands of the diphoton mass distribution. No excesses beyond Standard Model expectations are observed and higgsinos with masses up to 320 GeV are excluded, assuming a branching fraction of 100% for ???? 0 1 RIGHTWARDS ARROW ℎ ????. This analysis excludes higgsinos with masses of 130 GeV for branching fractions to ℎ ???? as low as 36%, thus providig complementarity to previous ATLAS searches in final states with multiple leptons or multiple ????-jets, targeting different decays of the electroweak bosons.

Název v anglickém jazyce

Search for pair-produced higgsinos decaying via Higgs or ???? bosons to final states containing a pair of photons and a pair of ????-jets with the ATLAS detector

Popis výsledku anglicky

A search is presented for the pair production of higgsinos ???? in gauge-mediated supersymmetry models, where the lightest neutralinos ????0 1 decay into a light gravitino ???? in association with either a Higgs ℎ or a ???? boson. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb-1 of proton-proton collisions at a centre-of-mass energy of SQUARE ROOT???? = 13 TeV. It targets final states in which a Higgs boson decays into a photon pair, while the other Higgs or ???? boson decays into a ????̄???? pair, with missing transverse momentum associated with the two gravitinos. Search regions dependent on the amount of missing transverse momentum are defined by the requirements that the diphoton mass should be consistent with the mass of the Higgs boson, and the ????̄???? mass with the mass of the Higgs or ???? boson. The main backgrounds are estimated with data-driven methods using the sidebands of the diphoton mass distribution. No excesses beyond Standard Model expectations are observed and higgsinos with masses up to 320 GeV are excluded, assuming a branching fraction of 100% for ???? 0 1 RIGHTWARDS ARROW ℎ ????. This analysis excludes higgsinos with masses of 130 GeV for branching fractions to ℎ ???? as low as 36%, thus providig complementarity to previous ATLAS searches in final states with multiple leptons or multiple ????-jets, targeting different decays of the electroweak bosons.

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

856

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

24

Strana od-do

138938

Kód UT WoS článku

001381595300001

EID výsledku v databázi Scopus

2-s2.0-85201411999