A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at √s = 13 TeV (2022)


ALICE Collaboration. (2022). Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at √s = 13 TeV. European Physical Journal C, 82(4), Article 335. https://doi.org/10.1140/epjc/s10052-022-10267-3


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: ALICE Collaboration

Lehti tai sarja: European Physical Journal C

ISSN: 1434-6044

eISSN: 1434-6052

Julkaisuvuosi: 2022

Ilmestymispäivä: 19.04.2022

Volyymi: 82

Lehden numero: 4

Artikkelinumero: 335

Kustantaja: Springer Science and Business Media LLC

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1140/epjc/s10052-022-10267-3

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/81728

Julkaisu on rinnakkaistallennettu: https://arxiv.org/abs/2110.10043


Tiivistelmä

Angular correlations of heavy-flavour and charged particles in high-energy proton–proton collisions are sensitive to the production mechanisms of heavy quarks and to their fragmentation as well as hadronisation processes. The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in proton–proton collisions at a centre-of-mass energy of √s=13 TeV with the ALICE detector is reported, considering D0, D+, and D∗+ mesons in the transverse-momentum interval 3<36 GeV/c at midrapidity (|y|<0.5), and charged particles with pT>0.3 GeV/c and pseudorapidity |η|<0.8. This measurement has an improved precision and provides an extended transverse-momentum coverage compared to previous ALICE measurements at lower energies. The study is also performed as a function of the charged-particle multiplicity, showing no modifications of the correlation function with multiplicity within uncertainties. The properties and the transverse-momentum evolution of the near- and away-side correlation peaks are studied and compared with predictions from various Monte Carlo event generators. Among those considered, PYTHIA8 and POWHEG+PYTHIA8 provide the best description of the measured observables. The obtained results can provide guidance on tuning the generators.


YSO-asiasanat: hiukkasfysiikka


Liittyvät organisaatiot

JYU-yksiköt:


OKM-raportointi: Kyllä

VIRTA-lähetysvuosi: 2022

JUFO-taso: 2


Viimeisin päivitys 2024-12-10 klo 13:16