Measurements of observables sensitive to colour reconnection in tt(bar) events with the ATLAS detector at √s = 13TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476558" target="_blank" >RIV/00216208:11320/23:10476558 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=tDIySZIo.8" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=tDIySZIo.8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-023-11479-x" target="_blank" >10.1140/epjc/s10052-023-11479-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of observables sensitive to colour reconnection in tt(bar) events with the ATLAS detector at √s = 13TeV

Popis výsledku v původním jazyce

Ameasurement of observables sensitive to effectsof colour reconnection in top-quark pair-production eventsis presented using 139 fb-1 of 13TeV proton-proton collisiondata collected by the ATLAS detector at the LHC.Events are selected by requiring exactly one isolated electronand one isolated muon with opposite charge and twoor three jets, where exactly two jets are required to be btagged.For the selected events, measurements are presentedfor the charged-particle multiplicity, the scalar sum of thetransverse momenta of the charged particles, and the samescalar sum in bins of charged-particle multiplicity. Theseobservables are unfolded to the stable-particle level, therebycorrecting for migration effects due to finite detector resolution,acceptance and efficiency effects. The particle-levelmeasurements are compared with different colour reconnectionmodelsinMonte Carlo generators. Thesemeasurementsdisfavour some of the colour reconnection models and provide inputs to future optimisation of the parameters in Monte Carlo generators.

Název v anglickém jazyce

Measurements of observables sensitive to colour reconnection in tt(bar) events with the ATLAS detector at √s = 13TeV

Popis výsledku anglicky

Ameasurement of observables sensitive to effectsof colour reconnection in top-quark pair-production eventsis presented using 139 fb-1 of 13TeV proton-proton collisiondata collected by the ATLAS detector at the LHC.Events are selected by requiring exactly one isolated electronand one isolated muon with opposite charge and twoor three jets, where exactly two jets are required to be btagged.For the selected events, measurements are presentedfor the charged-particle multiplicity, the scalar sum of thetransverse momenta of the charged particles, and the samescalar sum in bins of charged-particle multiplicity. Theseobservables are unfolded to the stable-particle level, therebycorrecting for migration effects due to finite detector resolution,acceptance and efficiency effects. The particle-levelmeasurements are compared with different colour reconnectionmodelsinMonte Carlo generators. Thesemeasurementsdisfavour some of the colour reconnection models and provide inputs to future optimisation of the parameters in Monte Carlo generators.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Svazek periodika

83

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

52

Strana od-do

518

Kód UT WoS článku

001188444700001

EID výsledku v databázi Scopus

2-s2.0-85168577059