Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp 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%2F68378271%3A_____%2F22%3A00565718" target="_blank" >RIV/68378271:_____/22:00565718 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0337234" target="_blank" >https://hdl.handle.net/11104/0337234</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP01(2022)063" target="_blank" >10.1007/JHEP01(2022)063</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A search for the exotic decay of the Higgs boson (H) into a bb‾b resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1−1 of pp collisions at ss ​ = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ∼20χ∼10χ∼​20​χ∼​10​, with χ∼20χ∼​20​→aχ∼10aχ∼​10​, where a is a light pseudoscalar Higgs boson and χ∼1,20χ∼​1,20​ are the two lightest neutralinos. The decay of the a boson into a pair of b-quarks results in a peak in the dijet invariant mass distribution. The final-state signature consists of two leptons, two or more jets, at least one of which is identified as originating from a b-quark, and missing transverse momentum. Observations are consistent with Standard Model expectations and upper limits are set on the product of cross section times branching ratio for a three-dimensional scan of the masses of the χ∼20χ∼​20​, χ∼10χ∼​10​ and a boson.

Název v anglickém jazyce

Search for exotic decays of the Higgs boson into b b¯ and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector

Popis výsledku anglicky

A search for the exotic decay of the Higgs boson (H) into a bb‾b resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb−1−1 of pp collisions at ss ​ = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H → χ∼20χ∼10χ∼​20​χ∼​10​, with χ∼20χ∼​20​→aχ∼10aχ∼​10​, where a is a light pseudoscalar Higgs boson and χ∼1,20χ∼​1,20​ are the two lightest neutralinos. The decay of the a boson into a pair of b-quarks results in a peak in the dijet invariant mass distribution. The final-state signature consists of two leptons, two or more jets, at least one of which is identified as originating from a b-quark, and missing transverse momentum. Observations are consistent with Standard Model expectations and upper limits are set on the product of cross section times branching ratio for a three-dimensional scan of the masses of the χ∼20χ∼​20​, χ∼10χ∼​10​ and a boson.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2022

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

38

Strana od-do

063

Kód UT WoS článku

000743928200001

EID výsledku v databázi Scopus

2-s2.0-85123239924