The invariant differential cross section of inclusive meson production at midrapidity () in pp collisions at was measured with the ALICE detector at the LHC over a transverse momentum range of . The meson was reconstructed via its decay channel. The measured 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 , while it overestimates the data by up to 50% for higher . The 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 range and the ratio is constant with above a transverse momentum of .

Production of ω mesons in pp collisions at √s=7TeV

Mandaglio G.
Investigation
;
Pistone D.
Investigation
;
Rosano A.
Investigation
;
Trifiro A.
Investigation
;
2020-01-01

Abstract

The invariant differential cross section of inclusive meson production at midrapidity () in pp collisions at was measured with the ALICE detector at the LHC over a transverse momentum range of . The meson was reconstructed via its decay channel. The measured 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 , while it overestimates the data by up to 50% for higher . The 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 range and the ratio is constant with above a transverse momentum of .
2020
File in questo prodotto:
File Dimensione Formato  
Acharya2020_Article_ProductionOfOmegaΩMesonsInPpCo.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 1.3 MB
Formato Adobe PDF
1.3 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/3182343
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 4
social impact