A1 Journal article (refereed)
Azimuthal correlations of prompt D mesons with charged particles in pp and p–Pb collisions at √sNN = 5.02 TeV (2020)


ALICE Collaboration (2020). Azimuthal correlations of prompt D mesons with charged particles in pp and p–Pb collisions at √sNN = 5.02 TeV. European Physical Journal C, 80 (10), 979. DOI: 10.1140/epjc/s10052-020-8118-0


JYU authors or editors


Publication details

All authors or editors: ALICE Collaboration

Journal or series: European Physical Journal C

ISSN: 1434-6044

eISSN: 1434-6052

Publication year: 2020

Volume: 80

Issue number: 10

Article number: 979

Publisher: Springer

Publication country: Germany

Publication language: English

DOI: http://doi.org/10.1140/epjc/s10052-020-8118-0

Open Access: Publication published in an open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/72328

Web address of parallel published publication (pre-print): https://arxiv.org/abs/1910.14403


Abstract

The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in pp collisions at √s = 5.02 TeV and p–Pb collisions at √sNN = 5.02 TeV with the ALICE detector at the LHC is reported. The D0D0, D+D+, and D∗+D∗+ mesons, together with their charge conjugates, were reconstructed at midrapidity in the transverse momentum interval 3<24 GeV/c and correlated with charged particles having pT>0.3 GeV/c and pseudorapidity |η|<0.8. The properties of the correlation peaks appearing in the near- and away-side regions (for Δφ≈0 and Δφ≈π, respectively) were extracted via a fit to the azimuthal correlation functions. The shape of the correlation functions and the near- and away-side peak features are found to be consistent in pp and p–Pb collisions, showing no modifications due to nuclear effects within uncertainties. The results are compared with predictions from Monte Carlo simulations performed with the PYTHIA, POWHEG+PYTHIA, HERWIG, and EPOS 3 event generators.


Keywords: particle physics

Free keywords: Azimuthal correlations; pp and p–Pb collisions


Contributing organizations


Ministry reporting: Yes

Preliminary JUFO rating: 2


Last updated on 2020-26-10 at 13:30