Combination and summary of ATLAS dark matter searches using 139 fb$^{-1}$ of $\sqrt {s}$ = 13 TeV $p p$ collision data and interpreted in a two-Higgs-doublet model with a pseudoscalar mediator

Autor: ATLAS Collaboration
Jazyk: angličtina
Rok vydání: 2021
Předmět:
dark matter: interaction
Yukawa [coupling]
13000 GeV-cms
branching ratio: upper limit
branching ratio [Higgs particle]
mass [dark matter]
coupling: scalar
WIMP: dark matter
dark matter [WIMP]
dark matter: coupling
axial-vector [coupling]
benchmark
scattering [p p]
Dark Matter
pair production [dark matter]
doublet [Higgs particle]
new physics: search for
transverse energy: missing-energy
dark matter: pair production
2HDMa
ATLAS
mass dependence
channel cross section: branching ratio: upper limit
pair production [bottom]
CERN LHC Coll
EXOTICS
lower limit [mass]
relic density [dark matter]
colliding beams [p p]
interaction [dark matter]
signature
p p: scattering
mass: lower limit
Higgs particle: invisible decay
parameter space [supersymmetry]
bottom: pair production
vector [coupling]
Higgs particle: doublet
coupling [dark matter]
search for [new physics]
dark matter: associated production
coupling: pseudoscalar
branching ratio: upper limit [channel cross section]
coupling: vector
dark matter: relic density
dark matter: mass
mediation [dark matter]
supersymmetry: parameter space
leptonic decay [Z0]
pseudoscalar [coupling]
coupling: axial-vector
dark matter: mediation
Higgs particle: branching ratio
scalar [coupling]
missing-energy [transverse energy]
hadronic decay [Higgs particle]
Higgs particle: hadronic decay
Z0: leptonic decay
upper limit [branching ratio]
High Energy Physics::Experiment
associated production [dark matter]
p p: colliding beams
coupling: Yukawa
invisible decay [Higgs particle]
experimental results
DOI: 10.3204/pubdb-2021-05313
Popis: 29 pp. (2021).
A combination of two searches for dark matter is presented, along with results from a wide range of experimental analyses that are interpreted in a common benchmark model: a Two-Higgs-Doublet Model with a pseudoscalar mediator. The analyses use up to 139 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the LHC between 2015-2018. The results from two searches targeting the $E_T^{\textrm{miss}}+Z(\ell\ell)$ and $E_T^{\textrm{miss}}+h(b\bar{b})$ signatures are statistically combined. The constraints of a wide range of additional experimental analyses, targeting final states with and without invisible particles, are evaluated and summarised alongside the combination in several interpretations within this model.
Databáze: OpenAIRE