Boosted and semi-boosted all-hadronic t(t)over-bar reconstruction performance on kinematic variables for selected BSM models using a 2D extension of the BUMPHUNTER algorithm
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73627640" target="_blank" >RIV/61989592:15310/24:73627640 - isvavai.cz</a>
Result on the web
<a href="https://obd.upol.cz/id_publ/333207527" target="_blank" >https://obd.upol.cz/id_publ/333207527</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/S0217751X24300023" target="_blank" >10.1142/S0217751X24300023</a>
Alternative languages
Result language
angličtina
Original language name
Boosted and semi-boosted all-hadronic t(t)over-bar reconstruction performance on kinematic variables for selected BSM models using a 2D extension of the BUMPHUNTER algorithm
Original language description
In this paper, we explore the usage of boosted as well as semi-boosted topologies in all-hadronic t (t) over bar final states in simulated pp collisions at root s=14TeV, with top quarks decaying into a boosted hadronic top-jet or a W-jet and an isolated b-jet. Correlations between selected kinematic variables and their shapes are studied for scalar and vector resonances decaying to a pair of top quarks, and also for a models of t (t) over bar -associated production with an invisible dark matter particle pair. Stacked signal+background samples have been investigated in terms of the ability to resolve an excess of events over the Standard Model background in terms of the t (t) over bar invariant mass, top quark transverse momentum and other 1D and 2D spectra using a parameterized detector simulation. A 2D extension of the BumpHunter algorithm is proposed, resulting in an improved signal sensitivity in specific 2D areas. We identify the most promising variables with the largest signal significance and smaller sensitivity to experimental uncertainties related to the jet energy calibration. We compare to statistical tests computing the background-only hypothesis compatibility and a likelihood fit of the signal strength.
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
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/GA19-21484S" target="_blank" >GA19-21484S: Novel techniques for boosted top quarks reconstruction for new physics searches at LHC</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN
0217-751X
e-ISSN
1793-656X
Volume of the periodical
39
Issue of the periodical within the volume
11n12
Country of publishing house
SG - SINGAPORE
Number of pages
51
Pages from-to
"2430002-1"-"2430002-51"
UT code for WoS article
001255269900001
EID of the result in the Scopus database
2-s2.0-85194926453