Underlying-event studies with strange hadrons 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%2F68378271%3A_____%2F24%3A00604915" target="_blank" >RIV/68378271:_____/24:00604915 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0362445" target="_blank" >https://hdl.handle.net/11104/0362445</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-024-13243-1" target="_blank" >10.1140/epjc/s10052-024-13243-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Underlying-event studies with strange hadrons in pp collisions at √s =13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0​, Λ and Λˉ, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at √s​=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes , Λ→π−pΛ→π−p and Λˉ→π+pˉΛˉ→π+pˉ​. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10<pT≤4010<pT​≤40 GeV are studied using the number of prompt charged particles in the transverse region. The ratio N(Λ+Λˉ)/N(KS0)N(Λ+Λˉ)/N(KS0​) as a function of the number of such charged particles varies only slightly over this range. This disagrees with the expectations of some of the considered Monte Carlo models.

Název v anglickém jazyce

Underlying-event studies with strange hadrons in pp collisions at √s =13 TeV with the ATLAS detector

Popis výsledku anglicky

Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0​, Λ and Λˉ, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at √s​=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes , Λ→π−pΛ→π−p and Λˉ→π+pˉΛˉ→π+pˉ​. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10<pT≤4010<pT​≤40 GeV are studied using the number of prompt charged particles in the transverse region. The ratio N(Λ+Λˉ)/N(KS0)N(Λ+Λˉ)/N(KS0​) as a function of the number of such charged particles varies only slightly over this range. This disagrees with the expectations of some of the considered Monte Carlo models.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

84

Číslo periodika v rámci svazku

Dec

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

29

Strana od-do

1335

Kód UT WoS článku

001412071700001

EID výsledku v databázi Scopus

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