Study of semi-boosted top quark reconstruction performance on the line shape of a t(t)over-bar resonance
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73613750" target="_blank" >RIV/61989592:15310/22:73613750 - isvavai.cz</a>
Výsledek na webu
<a href="https://obd.upol.cz/id_publ/333193637" target="_blank" >https://obd.upol.cz/id_publ/333193637</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/S0217751X2250110X" target="_blank" >10.1142/S0217751X2250110X</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Study of semi-boosted top quark reconstruction performance on the line shape of a t(t)over-bar resonance
Popis výsledku v původním jazyce
In this paper, we study the top quark pair events production in pp collisions in the l + jets channel at the energy of root s = 14 TeV for Standard Model as well as new physics processes. We explore the usage of semi-boosted topologies where the top quark decays into a high-transverse momentum (boosted) hadronic W-jet and an isolated b-jet and study their performance in the t (t) over bar events kinematic reconstruction. An important event fraction is recovered and the correlation of selected kinematic variables between the detector and particle level is studied. Quality of the reconstructed mass line shape of a hypothetical scalar resonance decaying into t (t) over bar is evaluated and compared for regimes of a different degree of the transverse boost. Unfolding performance is checked in terms of comparing the excess of events in spectra before and after the unfolding, concluding with the proof of a signal significance loss after the unfolding procedure for both energy and angle related observables, with possible applications for current LHC experiments.
Název v anglickém jazyce
Study of semi-boosted top quark reconstruction performance on the line shape of a t(t)over-bar resonance
Popis výsledku anglicky
In this paper, we study the top quark pair events production in pp collisions in the l + jets channel at the energy of root s = 14 TeV for Standard Model as well as new physics processes. We explore the usage of semi-boosted topologies where the top quark decays into a high-transverse momentum (boosted) hadronic W-jet and an isolated b-jet and study their performance in the t (t) over bar events kinematic reconstruction. An important event fraction is recovered and the correlation of selected kinematic variables between the detector and particle level is studied. Quality of the reconstructed mass line shape of a hypothetical scalar resonance decaying into t (t) over bar is evaluated and compared for regimes of a different degree of the transverse boost. Unfolding performance is checked in terms of comparing the excess of events in spectra before and after the unfolding, concluding with the proof of a signal significance loss after the unfolding procedure for both energy and angle related observables, with possible applications for current LHC experiments.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10303 - Particles and field physics
Návaznosti výsledku
Projekt
<a href="/cs/project/GA19-21484S" target="_blank" >GA19-21484S: Nové techniky rekonstrukce boostovaných top kvarků pro hledání nové fyziky na LHC</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN
0217-751X
e-ISSN
1793-656X
Svazek periodika
37
Číslo periodika v rámci svazku
16
Stát vydavatele periodika
SG - Singapurská republika
Počet stran výsledku
27
Strana od-do
"2250110-1"-"2250110-27"
Kód UT WoS článku
000823988200002
EID výsledku v databázi Scopus
2-s2.0-85133856416