Measurements of inclusive and differential cross-sections of t(t)over-barγ production in pp collisions at √s=13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73628723" target="_blank" >RIV/61989592:15310/24:73628723 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/JHEP10(2024)191" target="_blank" >https://link.springer.com/article/10.1007/JHEP10(2024)191</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP10(2024)191" target="_blank" >10.1007/JHEP10(2024)191</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of inclusive and differential cross-sections of t(t)over-barγ 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 (t (t) over bar gamma). The analysis is performed using an integrated luminosity of 140 fb(-1) of proton-proton collisions at a centre-of-mass energy of 13TeV collected by the ATLAS detector. The measurements are performed in the single-lepton and dilepton top quark pair decay channels focusing on t (t) over bar gamma 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 t (t) over bar production in associations with a Z boson are also set.

Název v anglickém jazyce

Measurements of inclusive and differential cross-sections of t(t)over-barγ 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 (t (t) over bar gamma). The analysis is performed using an integrated luminosity of 140 fb(-1) of proton-proton collisions at a centre-of-mass energy of 13TeV collected by the ATLAS detector. The measurements are performed in the single-lepton and dilepton top quark pair decay channels focusing on t (t) over bar gamma 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 t (t) over bar production in associations with a Z boson are also set.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

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)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF HIGH ENERGY PHYSICS

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2024

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

77

Strana od-do

"191-1"-"191-77"

Kód UT WoS článku

001394622400001

EID výsledku v databázi Scopus

2-s2.0-85208649876