Measurements of inclusive and differential cross-sections of tt¯γ production in pp collisions at √s = 13 TeV with the ATLAS detector
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00605501" target="_blank" >RIV/68378271:_____/24:00605501 - isvavai.cz</a>
Výsledek na webu
<a href="https://hdl.handle.net/11104/0363225" target="_blank" >https://hdl.handle.net/11104/0363225</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP10(2024)191" target="_blank" >10.1007/JHEP10(2024)191</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Measurements of inclusive and differential cross-sections of tt¯γ production in pp collisions at √s = 13 TeV with the ATLAS detector
Popis výsledku v původním jazyce
Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon (tt‾γ). The analysis is performed using an integrated luminosity of 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. The measurements are performed in the single-lepton and dilepton top quark pair decay channels focusing on tt‾γ topologies where the photon is radiated from an initial-state parton or one of the top quarks. The absolute and normalised differential cross-sections are measured for several variables characterising the photon, lepton and jet kinematics as well as the angular separation between those objects. The observables are found to be in good agreement with the Monte Carlo predictions. The photon transverse momentum differential distribution is used to set limits on effective field theory parameters related to the electroweak dipole moments of the top quark. The combined limits using the photon and the Z boson transverse momentum measured in tt‾production in associations with a Z boson are also set.n
Název v anglickém jazyce
Measurements of inclusive and differential cross-sections of tt¯γ production in pp collisions at √s = 13 TeV with the ATLAS detector
Popis výsledku anglicky
Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon (tt‾γ). The analysis is performed using an integrated luminosity of 140 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. The measurements are performed in the single-lepton and dilepton top quark pair decay channels focusing on tt‾γ topologies where the photon is radiated from an initial-state parton or one of the top quarks. The absolute and normalised differential cross-sections are measured for several variables characterising the photon, lepton and jet kinematics as well as the angular separation between those objects. The observables are found to be in good agreement with the Monte Carlo predictions. The photon transverse momentum differential distribution is used to set limits on effective field theory parameters related to the electroweak dipole moments of the top quark. The combined limits using the photon and the Z boson transverse momentum measured in tt‾production in associations with a Z boson are also set.n
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/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Svazek periodika
2024
Číslo periodika v rámci svazku
10
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
76
Strana od-do
191
Kód UT WoS článku
001394622400001
EID výsledku v databázi Scopus
2-s2.0-85208649876