CERN Accelerating science

If you experience any problem watching the video, click the download button below
Download Embed
Article
Report number arXiv:2110.10043 ; CERN-EP-2021-184
Title Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at s=13 TeV
Author(s) Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) Show all 1035 authors
Corporate author(s) The ALICE collaboration
Publication 2022-04-19
Imprint 10 Sep 2021
Number of pages 33
Note 33 pages, 11 captioned figures, 2 tables, authors from page 28, published version, figures at http://alice-publications.web.cern.ch/node/7447
Published in: Eur. Phys. J. C 82 (2022) 335
DOI 10.1140/epjc/s10052-022-10267-3
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Keywords QCD ; relativistic heavy ion physics ; quark gluon plasma ; charm physics ; heavy quark production ; particle and resonance production ; experimental results
Abstract 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<pT<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. The obtained results can provide constraints on the generators. Among those considered, PYTHIA8 and POWHEG+PYTHIA6 provide the best description of the measured observables.
Other source Inspire
Copyright/License Publication: (License: CC-BY-4.0), sponsored by SCOAP³
Preprint: © 2021-2025 CERN (License: CC-BY-4.0)
Submitted by javier.castillo.castellanos@cern.ch



 


 Record created 2021-09-10, last modified 2025-01-04


Fulltext:
2110.10043 - Download fulltextPDF
document - Download fulltextPDF
(additional files)
  • Send to ScienceWise.info