Production of omega mesons in pp collisions at s=7 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00346331" target="_blank" >RIV/68407700:21340/20:00346331 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-020-08651-y" target="_blank" >https://doi.org/10.1140/epjc/s10052-020-08651-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-020-08651-y" target="_blank" >10.1140/epjc/s10052-020-08651-y</a>
Alternative languages
Result language
angličtina
Original language name
Production of omega mesons in pp collisions at s=7 TeV
Original language description
The invariant differential cross section of inclusive omega (782) meson production at midrapidity (|y|<0.5) in pp collisions at s=7 TeV was measured with the ALICE detector at the LHC over a transverse momentum range of 2<pT<17 GeV/c. The omega meson was reconstructed via its omega -> pi+pi-pi 0 decay channel. The measured omega production cross section is compared to various calculations: PYTHIA 8.2 Monash 2013 describes the data, while PYTHIA 8.2 Tune 4C overestimates the data by about 50%. A recent NLO calculation, which includes a model describing the fragmentation of the whole vector-meson nonet, describes the data within uncertainties below 6 GeV/c, while it overestimates the data by up to 50% for higher pT. The omega/pi 0 ratio is in agreement with previous measurements at lower collision energies and the PYTHIA calculations. In addition, the measurement is compatible with transverse mass scaling within the measured pT range and the ratio is constant with C omega/pi 0=0.67 +/- 0.03(stat) +/- 0.04(sys) above a transverse momentum of 2.5 GeV/c.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
80
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
16
Pages from-to
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UT code for WoS article
000598026500007
EID of the result in the Scopus database
2-s2.0-85097283510