Constraining hadronization mechanisms with A(c)(+) /D-0 production ratios in Pb-Pb collisions at root(NN)-N-s=5.02 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367689" target="_blank" >RIV/68407700:21340/23:00367689 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2023.137796" target="_blank" >https://doi.org/10.1016/j.physletb.2023.137796</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2023.137796" target="_blank" >10.1016/j.physletb.2023.137796</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Constraining hadronization mechanisms with A(c)(+) /D-0 production ratios in Pb-Pb collisions at root(NN)-N-s=5.02 TeV

Popis výsledku v původním jazyce

The production of prompt A+c baryons at midrapidity (|y| < 0.5) was measured in central (0-10%) and mid-central (30-50%) Pb-Pb collisions at the center-of-mass energy per nucleon-nucleon pair root sNN = 5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT =1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus-nucleus collisions, allowing for an extrapolation down to pT = 0. The pT-differential A+c /D0 ratio is enhanced with respect to the pp measurement for 4 < pT < 8 GeV/c by 3.7 standard deviations (cr), while the pT-integrated ratios are compatible within 1cr. The observed trend is similar to that observed in the strange sector for the A/K0S ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.(c) 2023 European Organization for Nuclear Research. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

Název v anglickém jazyce

Constraining hadronization mechanisms with A(c)(+) /D-0 production ratios in Pb-Pb collisions at root(NN)-N-s=5.02 TeV

Popis výsledku anglicky

The production of prompt A+c baryons at midrapidity (|y| < 0.5) was measured in central (0-10%) and mid-central (30-50%) Pb-Pb collisions at the center-of-mass energy per nucleon-nucleon pair root sNN = 5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT =1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus-nucleus collisions, allowing for an extrapolation down to pT = 0. The pT-differential A+c /D0 ratio is enhanced with respect to the pp measurement for 4 < pT < 8 GeV/c by 3.7 standard deviations (cr), while the pT-integrated ratios are compatible within 1cr. The observed trend is similar to that observed in the strange sector for the A/K0S ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.(c) 2023 European Organization for Nuclear Research. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/LM2018109" target="_blank" >LM2018109: Brookhavenská národní laboratoř - účast České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Physics Letters B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

839

Číslo periodika v rámci svazku

Apr

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

000989368500001

EID výsledku v databázi Scopus

2-s2.0-85150826666