Measurement of ω meson production in pp collisions at root s=13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00388753" target="_blank" >RIV/68407700:21340/25:00388753 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP04(2025)067" target="_blank" >https://doi.org/10.1007/JHEP04(2025)067</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP04(2025)067" target="_blank" >10.1007/JHEP04(2025)067</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of ω meson production in pp collisions at root s=13 TeV

Popis výsledku v původním jazyce

The p(T)-differential cross section of omega meson production in pp collisions at root s = 13 TeV at midrapidity (vertical bar y vertical bar < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < p(T)< 50 GeV/c. The meson is reconstructed via the omega -> pi(+)pi(-)pi(0) decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating omega fragmentation using a broken SU(3) model. The omega/pi(0) ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the p(T) ranges of previously available measurements. A constant ratio of C-omega/pi 0 = 0.578 +/- 0.006 (stat.) +/- 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

Název v anglickém jazyce

Measurement of ω meson production in pp collisions at root s=13 TeV

Popis výsledku anglicky

The p(T)-differential cross section of omega meson production in pp collisions at root s = 13 TeV at midrapidity (vertical bar y vertical bar < 0.5) was measured with the ALICE detector at the LHC, covering an unprecedented transverse-momentum range of 1.6 < p(T)< 50 GeV/c. The meson is reconstructed via the omega -> pi(+)pi(-)pi(0) decay channel. The results are compared with various theoretical calculations: PYTHIA8.2 with the Monash 2013 tune overestimates the data by up to 50%, whereas good agreement is observed with Next-to-Leading Order (NLO) calculations incorporating omega fragmentation using a broken SU(3) model. The omega/pi(0) ratio is presented and compared with theoretical calculations and the available measurements at lower collision energies. The presented data triples the p(T) ranges of previously available measurements. A constant ratio of C-omega/pi 0 = 0.578 +/- 0.006 (stat.) +/- 0.013 (syst.) is found above a transverse momentum of 4 GeV/c, which is in agreement with previous findings at lower collision energies within the systematic and statistical uncertainties.

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/LM2023040" target="_blank" >LM2023040: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

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

Rok uplatnění

2025

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

1029-8479

Svazek periodika

2025

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

30

Strana od-do

—

Kód UT WoS článku

001489154400001

EID výsledku v databázi Scopus

2-s2.0-105008661455