Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb-1 of proton-proton collision data at root s=13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00390184" target="_blank" >RIV/68407700:21220/24:00390184 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21240/24:00390184 RIV/68407700:21340/24:00390184 RIV/68407700:21670/24:00390184
Result on the web
<a href="https://doi.org/10.1007/JHEP08(2024)013" target="_blank" >https://doi.org/10.1007/JHEP08(2024)013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2024)013" target="_blank" >10.1007/JHEP08(2024)013</a>
Alternative languages
Result language
angličtina
Original language name
Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb-1 of proton-proton collision data at root s=13 TeV with the ATLAS detector
Original language description
A search for heavy pseudo-scalar (A) and scalar (H) Higgs bosons decaying into a top-quark pair (t (t) over bar) has been performed with 140 fb(-1) of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of root s = 13TeV. Interference effects between the signal process and Standard Model (SM) t (t) over bar production are taken into account. Final states with exactly one or exactly two electrons or muons are considered. No significant deviation from the SM prediction is observed. The results of the search are interpreted in the context of a two-Higgs-doublet model (2HDM) of type II in the alignment limit with mass-degenerate pseudo-scalar and scalar Higgs bosons (m(A) = m(H)) and the hMSSM parameterisation of the minimal supersymmetric extension of the Standard Model. Ratios of the two vacuum expectation values, tan beta, smaller than 3.49 (3.16) are excluded at 95% confidence level for m(A) = m(H) = 400 GeV in the 2HDM (hMSSM). Masses up to 1240 GeV are excluded for the lowest tested tan beta value of 0.4 in the 2HDM. In the hMSSM, masses up to 950 GeV are excluded for tan beta = 1.0. In addition, generic exclusion limits are derived separately for single scalar and pseudo-scalar states for different choices of their mass and total width.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2024
Issue of the periodical within the volume
8
Country of publishing house
IT - ITALY
Number of pages
76
Pages from-to
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UT code for WoS article
001457884900001
EID of the result in the Scopus database
2-s2.0-105007426956